If you did all that youd be known as the terry davis of robotics if you could make a robot walk with a flexible spine youd get an email from tesla and the like i think

>>2969436
Terry was just a wacky believer and assumed role of a priest. Larry has a clear God complex
>I am using a Biblical theme of naming the first 3 robots I make Adam, Eve, and Abel
Like, that's just attempting to mimic God, but he's obviously far away from godhood, since God created Earth and people in 6 days while after 11 years, Larry stuck at constructing antennas from copper wicks and discovering copper tape on ebay

You know motors glitching from radio is bad for the robot but itd be fun to watch lol

>>2969714
My decision to use Biblical names of first humans was intended to b a homage to God, reflect my love for the God's Word, and was done with the intention of all humility toward God. My robots are being built with respect toward what God made and have grown my respect toward God as a superior designer. Art mimics life and God created all life. So art mimics the creations of God generally. It should be done with reverence toward God which is my intention. I do not want to usurp God in any way, only pay homage to Him.

>on project for a long time

Not really I've taken long breaks constantly and repeatedly only working in short spurts here and there. If someone in 1k years spent 5 minutes on a project that doesn't mean they work slow it means they did not work on that project much.

>>2969850
>My robots are being built with respect toward what God made and have grown my respect toward God as a superior designer.
You're claiming you understand God better as a "superior designer" because you made up (never built) some robots lmao, obviously you're comparing yourself to God and thinking there's some kind of analogy. Christianity has like 2000 years and during that timespan noone has decided to "honor" God by creating another humanoid creature - you know what it'd be called normally? Playing God. Thing you're paying homage to is a jewish myth of Golem.

>I do not want to usurp God in any way
You don't "not want", you can't.

>If someone in 1k years spent 5 minutes on a project that doesn't mean they work slow it means they did not work on that project much.
You're pouring as much attention and time into this project as you can, but you're just too slow. Everyone has to take breaks, people work 8-12 hour shifts and go take a fucking break at their homes. Construction, software development, etc. - it all can take months and years precisely because people take breaks and have days off. Nonetheless, they do their work more efficiently and faster. You're not in a special set of circumstances, you're just outstandingly incompetent and too sensitive. I think you're actually closer to offending God with your sloppy work than honoring Him.

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>>2969850
>yea I have this grandiose, revolutionary, world-shattering concept I work on to honor God almighty himself. I just don't feel like spending too much time on it.

>>2969955
>people in their jobs take breaks just like you do
no, they take a day off here or there. I have taken multiple consecutive years off multiple times. Not the same. They are full-time working on a single project with all of their focus 40-60 hours per week. I on a good week am doing like 4 hours that week. No the same. Someone achieving more in 60 hours than someone did in 4 hours does not mean they are more efficient or a faster worker.

>you are comparing yourself to God
yes I am weak and he is strong. That's a comparison. That's a humble position, not a brag.

>you saw God is superior to you as a designer by working on your robot project
correct. I supposed why not have a nose bone? I thought I'll use a bone there. Then I later realized if the robot face planted that bone would get shoved into the skull, penetrating anything therein and would have converted into a weapon of destruction. So a bone cannot be there but cartilage can. So the thing forming the nose shape must be cartilage like, not bone like. I learned WHY the nose has a cartilage-like design, not understanding it or considering it until I questioned it and thought I'd change it. In my attempt to improve the design or modify it I discovered the reason for the original design and was able to marvel at the brilliance of it. Giving glory to God for it. And so it has gone for many studies regarding it and there are other examples like this. So yes, whether making a robot involving studying the body's design or studying it for medical school purposes or w/e you come to appreciate many parts of its design and if you believe in God as creator then you naturally marvel at the work of His hands and the cleverness of his designs.

>>2969994
>I find I can honor God through my robot project but don't like spending too much time on it
Nobody said I don't LIKE to spend too much time on it. That's not true. I just have other pressing matters to attend to on a regular basis. And you also suppose that this project is the ONLY way I can honor God which is also not true. I can honor God in countless other ways and do so. So honoring God less often in one way I honor Him does not diminish my overall honoring Him as long as the other thing I do when not honoring Him with this project honors Him equally. As long as one is acknowledging God in all their ways they are honoring him always. As long as one prays unceasingly they are honoring him always. As long as one is obeying God always according to their knowledge they honor him always. One does not need to find a single way they can honor God and then just do that thing on a near constant basis as you falsely suppose. That would lead to terrible work like balanced and being neglectful of your other responsibilities and so very foolish indeed.

The universe/multiverse or what have you may belong to God but the world belongs to miku

>>2970001
>I on a good week am doing like 4 hours that week
If you think you're going to build a robot that builds itself and design AI that upgrades itself by working on those 4 hours a week then you're either retarded or delusional. You can't honestly both claim that you're going to complete this project and excuse yourself with having other shit to do
>Someone achieving more in 60 hours than someone did in 4 hours does not mean they are more efficient or a faster worker.
bro, you're buying random shit off amazon and trying to use it in your project, documenting failure after failure. You're obviously inefficient, unskilled, untrained and incompetent, keeping yourself in the comfort zone by fetching answers along the way from a chatbot.

>yes I am weak and he is strong. That's a comparison. That's a humble position, not a brag.
You literally implied you learned to appreceate God more as a creator because on your "work" on a humanoid robot. What a way to show your humility lmao. You clearly have God complex, you're unable to admit your delusions or your faults, and most likely you're driven to build these robots because of your compulsive need to control other beings, whilst being too repulsive to most of actual people.

>>you saw God is superior to you as a designer by working on your robot project
I didn't even claim that, it's fascinating how 80% of your reply is reply to your own argument that you made up. You're going to go to hell for being prideful alone, forget wanting to fuck the robot.

>>2970004
okay give me an example of your on regular basis pressing matter that takes precedence over building a world class perfect humanoid robot with human-like mind that all armies in the world and private sector would kill for.

I was randomly talking to chatgpt about how I have been feeling burdened by having to make my own BLDC motor controllers for my robot lately and it randomly mentioned integrated half-bridge power modules as something I could use to cut down on my labor load in making these motor controllers. This immediately stood out to me as something I'd never heard of and something intriguing. I have so far been working on my lowside switch and highside switch which together form a half bridge. Many solder connections have been involved and alot of discrete components are involved. The concept of an integrated half bridge on a single chip - meaning two big power mosfets and all the drive circuitry for those power mosfets all condensed into a single chip would be a huge reduction in size and component count as well. So I researched if any are able to do 8v 30a for my 2430 BLDC motor's needs. Turns out there are some out there. At first I was looking at Texas Instruments CSD95377Q4M Half‑Bridge Driver (30A) which can do 30a continuous so perfect for me. However, I didn't want to lock myself into a single vendor chip that may one day be discontinued. I prefer something ubiquitous with many competitors making it that can be purchased from aliexpress. Something commodity level. This way I future proof it and don't have to worry about any one manufacturer discontinuing parts I'm using and prices soaring because of that or simply the part becoming unavailable. So after a bit further digging I found CSD95481RWJ QFN chipset on aliexpress sold by several vendors and one was under $1 each. So it is equivalent to two power mosfets plus all drive circuitry for each power mosfet all for under $1.

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This one also has 60a continuous rating. It is only 5mm x 6mm in size which to me is insane. This is so much smaller than the setup I've been working on yet just as powerful. They are usually used for tiny buck converters and used directly on videocard PCBs and in servers and in automotive PCBs and much more. In any case, using 3 of these half bridge chips you can drive a BLDC motor. The consolidation of so many parts into such a tiny package is truly blowing my mind. So I ordered 60 of these chips - enough to drive 20 BLDC motors. I am leaning toward using these for all my motor controllers if working with them is easier than working with discrete components like I have been. They are cheaper to work with I think - I'd have to run the numbers on that though. They even have built in temp sensing we can read in which is a bonus. Their built in current sensing will not work for BLDC motors so I'll still need my shunt resistor current sensing circuit setup external to it but that's ok. All in all these appear to be a game changer in terms of reducing part count so less potential points of failure and also reducing board footprint so miniaturizing my electronics even more which is very good for us. I'm still needing to work out now how I want to hook these up in terms of PCB making for it and any discrete external components needed to support it. It is also top cooled which is interesting. I'm envisioning using silicone thermal adhesive to glue on a copper pad that has my braided solder wick wires already soldered to it. These will carry the heat away to my water cooled pipe system.

I'm kind of amazed that nobody really seems to use these for BLDC motor controllers. They seem perfect for it. Maybe I'll start a trend. Assuming I don't find out the hard way why they are never used for this application!

note: the full product title: "(5pcs)100% original New CSD95481RWJ 95481RWJ CSD59950RWJ 59950RWJ QFN Chipset"

note: for my previous BLDC motor controller design I was needing to use 6 digital IO pins to drive a single BLDC motor controller's 6 power mosfets by way of their control circuitry. But for a BLDC motor controller design using 3 CSD95481RWJ H-bridge chips, I will only need to use 3 digital IO pins on the microcontroller. These CSD95481RWJ H-bridge chips use a pwm pin that is a tri-state pin - you can have high, low, and floating as the signal you send to it from your microcontroller. Digital output high and low are the usual digital output modes but the floating mode you do in your code by configuring the pin to be a digital input pin which makes it a floating pin. These 3 states fed into the chip makes it either give you V+ as its output or V- as its output or just off/floating as its output. This corresponds perfectly to the normal h-bridge 3 states we'd be using with our discrete components previous microcontroller design. So this savings in total digital I/O pin usage on the microcontroller means you can drive more motors per microcontroller in theory which is pretty cool.

11 years in and Gary just now discovers what anybody else working on their first motor project would have discovered day one

Well I deep dove into the CSD95481RWJ IC route. I estimate it will cut the work in half roughly for every motor controller made and cut the size taken up by about 60% compared to my previous discrete components approach.

Now I will note that I did come across the BTN8982TA which is rated to 40v and can handle 30a continuous 50a peak short burst. But it's TO-263 form factor so about 4 times as big as the CSD95481RWJ. It also costs about $2 each so double the price. It's not a bad option though all things considered but just not quite as good as the CSD95481RWJ for the reasons mentioned. I note it here so I don't forget about it. It can be a great option if the CSD95481RWJ doesn't work out in the end or something.

Anyways, for the thermal concern - which is my biggest concern, I plan to top cool the CSD95481RWJ using a .2mm plate thermal siliconed into place on top of the CSD95481RWJ and then solder a bundle of 4 braided solder wick wires to that and run that off to the water cooled copper pipe about 4" away. The top cooling only handles about 30% of the cooling according to chatgpt. The most important 70% is from the bottom cooling through its pads on its bottom. For this I plan to use double stacked .2mm thick copper plate soldered to its IC pads. So that's .4mm thick. Also it will be around 2mm wide where it attaches to the pads. It will then route out from under the chip and swing upward into free space and head over to the 8v+ and 8v- buses coming from the 8v motor battery banks in the robot's lower torso. These thick copper traces I will fork off of with braided solder wick wire right near the CSD95481RWJ IC chip for thermal conductivity reasons. This braided solder wick wire will be live so I will wrap it in fiberglass window screen so nothing can touch it - preventing short circuits. It will then be electrically isolated from where it connects to the water cooled copper pipe with thermal conductive tape.

The braided solder wick wire attaching to these thick copper traces will be a bundle of 4 per trace. The various decoupling capacitors this chip calls for I will connect to its output pins using flat flex PCB DIY hand made. I'll be attaching this PCB first and attaching the thick copper traces to the underside pads second as a separate layer that goes underneath the flat flex PCB layer. The flat flex PCB layer will mostly stay around the outsides of the chip and have its center cut out and removed - the part of it that would get in the way of the underside main pads under the chip. So the flat flex PCB will just hug the outsides of the IC mainly in a U shape around the chip leaving the center of the bottom of the chip free to solder to with my thick copper traces.

Note: the thick copper traces will be cut out with scissors from a roll of .2mm copper sheeting I bought on amazon which I mentioned a few posts back. Double stacking it wil double its thickness and increase its conductivity both electrically and thermally.

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Note: in a usual setup with this CSD95481RWJ IC, a multilayer board with a array of vias is used to bring the heat downward off the chip and into another lower layer within the multilayer board where it can then radiate on said layer outward in every direction. In my approach, I use thicker traces than the layers of a multilayer PCB has so I have alot more local copper in play. Then instead of the heat transferring down and then outward in all directions on very thin copper, mine travels down then in a single direction outward away from the IC on that trace. The trace will need to be as wide as possible as soon as possible. I expect to get it from 2mm width - the width of the pad - to 5mm width within a few mm. This rapid transition to a wider width combined with the use of much thicker copper compared to a multilayer PCB's copper thickness of its layers means I should be able to exceed the thermal performance of a multilayer board using my approach. Especially since I also plan to quickly fork off the main traces with bundles of 4 solder wick wire braids that will carry the heat off to a water cooled pipe 4" away.

Note: in my attached schematic I only show a single CSD95481RWJ IC because they are all wired up the exact same way. It's just doing it 3 times for each of the 3 phase wires of the BLDC motor.

Note: I will use a single electrolytic capacitor per motor controller also not pictured in the schematic.

>>2969431
You are a sick bastard and need to S T O P

>>2971501
what is sick about building a household assistant robot?

BLDC Driver ICs exist you know. Go on the Texas Instruments website and look for them, there are many options available. In a project like yours, you should probably use ready-made solutions whenever possible so there's less stuff you have to worry about.

>>2971629
Good to know. The highest amp rating one I could find though was 8a and my smallest motors require 30a continuous rating. So this is not a product I can use for my robot.

>>2969431
oh look another sexbot thread.

>>2971648
assuming you and this >>2971501 are both going the sexbot angle, that is not the intention of this thread/project. I've been very clear on this anti-sexbot stance from the beginning. I am opposed to sexbots period. I am not building one. Not sure why people jump to that conclusion, nothing I stated about the robot says anything lending to that assumption.

Also consider this: if you create advanced AI that goes around telling married men to come lay with it, then you are creating a whorebot essentially that is morally deficient and at the very least simulating adultery. Adulteressbot. No, my bots will be morally upright and Bible thumper bots.

>>2971716
Its not adultery cause its not alive…

>>2971736
I agree its not literal adultery which is why I said it is simulating adultery. Jesus said if you even look at a woman to lust you have already committed adultery with her in your heart. So if looking the wrong way God considers a crime, then simulating adultery in other ways than mere heart imaginations surely is in crime territory too wouldn't it seem?

I urge you to tread carefully, for what you are doing is not without profound ethical and spiritual implications. Remember the words of Ecclesiastes 7:13-14: "Consider the work of God: for who can make that straight, which he hath made crooked?" It is essential to reflect on the divine order and the sanctity of life as you work on this project. If you are a man of faith is it really worth an eternity in hell to create a sexbot?!

>>2971401
In next 11 years he will discover he can basically buy all the parts and in year 2525 he will discover jlcpcb

>>2971716
the first thing you want to build is an arm its obvious you want a robohandjob

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>>2971716
Hedonismbot disapproves

OK, so when I was thinking of using both my discrete components motor controller design parts I already made and then also separately implementing the integrated half bridge IC design going forward, it hit me that the 8v- and arduino gnd tie together on the half bridge IC by necessity but this ruined their intended isolation I needed for my discrete components motor controller design particularly for the lowside switching portion of that schematic. On the lowside switching portion, the little mosfet has 12v- and arduino gnd tied to its source pin. If on the integrated half bridge I also have to tie arduino gnd and 8v-, then that means 12v- and 8v- and arduino gnd are all tied together always.
That completely ruined the necessary isolation between arduino gnd/12v- and 8v- that I had intended to be in place for my lowside switch setup. So that was bug #1 freshly introduced that I would then need to solve for in my discrete components motor controller design. When studying this out on the discrete components motor controller design, another error hit me: when any lowside switch turned on in the design, the 12v- dedicated power supply gnd and the 8v- motor supply gnd become connected as long as that lowside switch is on. Since every lowside switch had always access to 8v gnd on its source pin, then even one moment of 12v gnd and 8v gnd attachment anywhere on the robot would cause every lowside switch in the entire robot to immediately turn on at the same time.

So if any turned on, then all turned on. This was a huge oversight. For some reason since I only designed and focused on one half bridge conceptually at a time, I did not consider the effects one half bridge has on its neighboring half bridges. This just never occurred to me. I guess conceptually I envisioned that every half bridge had its own personal 12v ground from its own personal 12v supply that was electrically isolated from the entire rest of the robot. But of course that's not practical even if it is technically possible. So in testing, things did work, but would have failed as soon as I tried to test more than one half bridge at a time. So I caught this bug before testing revealed it.

I discussed this horrible situation with chatgpt and it taught me that in a complex system like a robot, grounds of all your different supply rail voltages cannot be relied on to be isolated from one another like I was treating it. Even if at times they were momentarily, one switch, one change and suddenly they are not and it all becomes a common system ground again. So if I can't safely assume a ground for any given voltage is safely disconnected from the grounds of other voltages, I should not rely on switching on and off access to any particular ground to any of my lowside switches. Instead, I should be shorting the gate driver of the lowside switches to ground to shut them off rather than messing with their source pin's ground connections like I was before. I am to leave the source pin's ground connection as 12v- and its gate connection as 12v+ at all times except when I want to shut it off - at which point I short the gate pin to gnd using my logic level mosfet to do so.

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The fix was very straightforward and minor: I just had to add a 100ohm resistor in series with the gate pin of my big power mosfet lowside switch and then reroute my little mosfet a09t drain pin to the big lowside mosfet's gate pin instead of its source pin. The connection to its gate pin must be downstream of that 100 ohm series resistor so that the path from the big mosfet's gate pin has almost zero resistance when traveling through the little mosfet's drain line and over to its source line into ground. This way when you turn on the little mosfet, the big mosfet's internal capacitor quickly empties out, flushing into the path to ground created by the little mosfet and that discharges the big mosfet, shutting it off. When you want it back on, you shut the little mosfet off, which allows the big mosfet's internal capacitor to charge up again, which turns the big mosfet back on. So the setup now acts like a normally on relay.

Note: the resistor on the drain line of the little mosfet that we used to have when it fed into the source line previously is now removed. We want no resistance on there because that would impede the little mosfet's ability to discharge the big mosfet's internal capacitor in a timely manner. We want to be able to not only discharge that capacitor quickly but also direct all incoming current from the 12v+ line that makes it past the 100ohm resistor heading for that big mosfet's gate into our ground path. This rapid redirect flushes so much of that already limited current that hardly any can make it inside the gate of the big mosfet which causes the gate of the big mosfet's voltage to approach near zero volts. So it's called a "pull down" path to ground.

Attached is a photo of my schematic before and after the fix.

File: full-updated-bldc-motor-c(...).jpg (1.75 MB, 2890x2530)

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Attached is a photo of full updated schematic with the changes in place.

That all having been said, this discrete components original bldc motor controller design, now fixed, is worth keeping archived, but is now basically abandoned now that I have access to the time, money, and space saving shortcut of my integrated half bridge IC based design. It's kind of sad to abandon something I spent so much time on, but who knows, I may still use it if I ever come across a motor that I can't find a cheap half bridge integrated IC for in the future. It's a great schematic to have at the ready for that scenario.

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Ok so I was thinking now that each half bridge is just a tiny IC rather than a pair of hefty power mosfets, the space taken up overall by my entire bldc motor controller is going to be about 3cm x 1cm x 2mm which is insanely small for 30a continuous at 8v motor controller! This realization caused me to reconsider whether I even need to treat this as a single motor controller cluster that has to be sat like a horse saddle onto the side of my bldc motor - my original intention for my discrete components original design for my original bldc motor controller. What I realized instead is that things are now so small that I can simply build a half bridge for each phase as a inline element nested inside the cable run leading to each phase wire of the bldc motor. So instead of having a dedicated spot for each motor controller, I'm going to have just a slight bulge in the phase wire leading out from the bldc motor and that bulge will contain the half bridge that handles that phase wire. All nested inline. This is the easiest way to implement and most streamlined I think. It also means the whole motor controller will just be "floating" in midair, not actually mounted to any motor or anything at all. Just part of the wire harness nested right in there. This is a radical approach IMO. Only made reasonable by the fact we miniaturized the design by such an insane degree.

So the previous version of the schematic was intended to be mounted to the side of the motor like a horse saddle and had an l shape so inputs would come up from bottom and outputs out to left side toward motor phase wires. These L shaped half bridge setups would be stacked next to eachother side by side. In the new variation everything is inline, inputs coming from right and outputs exit out left side to motor.

Here's the updated inline variation of the schematic (no longer L shaped flow like before).

>>2971964
>>2971965
>>2971966
>>2971967
>>2972075
You should get this working on a breadboard first.
It might be difficult with quite a bit of trial and error to get the arduino giving the right outputs at the right times to drive your motor.

Having to probe a bunch of components that are hanging in the middle of a cable sounds like a giant pain in the ass. Your probe clip will be dangling from component leads, putting strain on the solder joints or potentially shorting things together. If you use a probe without a hat or clip, the board will be pushed away from you and moved around when you go to measure stuff.

Also, as your robot moves around these drivers might end up banging into each other and other electronics shit inside. You have a very high density of motors

>>2972087
>use breadboard first
this ic is so tiny it can comfortably fit on my pinky fingernail. so i have to make a flex pcb to even interface with it. breadboarding works if you have breakout headers you can plug jumper wires into. It isn't a timesaver for this

>difficult timings
not really. there's just 3 phase you can walk through them at any speed. I'll just trial and error till it creates pseudo sine wave though.

>probing in middle of cable a pain
I don't think so. I just pinch probe tip against it with fingers or w/e to hold in place for something like this. I don't use a probe clip.

>drivers might be banging
well sure but I don't think that should be a issue and should not happen that often the wire won't be that floppy it should just wave in the air like electrical lines overhead blowing in the wind. I also might wrap the whole thing in rubber to protect it. It will be pretty robust I think.

>>2972136
>I just pinch probe tip against it with fingers
That is an excellent way to both pick up noise for the probe and to inject unwanted signals into your system

>>2972374
no, noise or signals in system would not happen since the only multimeter probing we'd ever be doing is when system is off and we are trying to troubleshoot some issue or test it before going live.

>>2971967
How come you ponder whenever breadboarding your project is a timesaver or not while wasting your time on drawing shit like this in ms paint

>>2972715
I drew the schematic in photoshop with pencil tool and that same schematic I plan to print onto transfer paper and laminate onto copper and etch the copper board to make the circuit from that drawing then. So the drawing is not a waste of time it is literally the first step of a diy circuit for the motor controller. It's not a wasted step or an extra step or a skippable step. It's needed 100% so zero waste of time at all.

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Ok so I realized I don't have to feed in 8v+ from an external wire when I can just pull it from a neighboring pin on the chip that has 8v+ already fed to it from one of the big 8v+ copper traces attached to one of the big 8v+ pads on the underside that connect directly to one of the side pins. That side pin can then be routed to any 8v+ requiring pins if I can find a path for this routing - which I did find. So that is one less external wire input needed - bringing total external input wires needed to 3 instead of 4 as far as the 30ga wires I need to attach. So now all I need for 30ga wire attachments are 5v+ from arduino, GND from arduino, and PWM from arduino. This saves work and simplifies the wiring so its a great improvement.

Oh and I also did the same thing for the 8v- feed, pulling it from a local pad rather than a external wire feed for that.

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>>2972920
Also, I have separated out the PCB traces themselves and made them black instead of blue for printing them onto the PCB transfer paper and laminating this onto the blank Pyralux flex PCBs for etching them. I also mirrored it since it prints and laminates backwards onto the PCB.

>>2972922
>Hand drawing instead of using the rounded rectangle tool
Retard

>>2972922
How is making a post on how you recolored your image from blue to black not a waste of time

>>2973218
I mean, technically he flipped it too. That's 2 steps (assuming flip isn't an affront to God's divine plan or something).

sup, I'm the robotics PhD guy from a few threads ago, can you tldr me on the progress ? Last time I told you to test one joint, did you achieve that ? Also is your mental health better? I remember last time you seemed completely narcissistic and delusional about your work, did you reconsider some things?

>>2973334
also as a cool little trick that could save you and the other retards over at /robo/ a fuckton of time. There's something called motion diffusers (you can find a well structured GitHub), you can map the results of the motion diffusion to whatever your upper body kinematic model is to have a robot able to move based on a text sequence. I've been able to test this in my lab on a simple humanoid and using this method you don't need any training or anything. I remember you were hostile to having deep NN and had delusions about being able to make the robot work with a rule based algo, you could use this type of high level rules / sentences as inputs to what I just said.

>>2973334
>can you tldr me on the progress
there was none
>did you achieve that
no
>>2973337
>There's something called motion diffusers (you can find a well structured GitHub)
Larry will not waste his time on learning all that stuff, he's cutting corners by drawing his circuitry in ms paint, instead of using CAD, how could you possibly expect him to delve into github scripts

>>2972922
What are the next steps you are planning on doing to get the motor up and running? Is there a lot of work left?

>>2973577
A little bit more calibrating the test prints of the circuit and verifying its perfect then doing the whole diy pcb process then soldering on the tiny IC and its supporting caps/resistors etc then attaching all the wiring to that and testing it then repeat that 3 times to get all 3 half bridges and then I can test the motor and code the motor firmware.

>>2973607
>and verifying its perfect
Will it be verified as perfect if the edgess are jagged and cracked again? Or will you keep trying until you actually get a perfect trace?

>>2973679
in my trace alignment I was having to do pixel level modifications and reprints to verify the pcb traces/pads perfectly match up to the pins on the chip. that part has to be perfect. imperfections in the toner transfer, mixing ratios of etchant, copper prep etc cause the trace imperfections you are referring to and that's process related and not at issue as long as everything has continuity and will naturally improve with iterations as I dial in the process with each attempt.

>>2973731
>in my trace alignment I was having to do pixel level modifications and reprints to verify the pcb traces/pads perfectly match up to the pins on the chip
How can you do this and at the same time claim that you're saving time by not learning kicad

>>2973772
it still is less time IMO but the gap is closing on this IC specifically because the margin for error got ridiculously low due to the 0.4mm pin spacing its insane. The other circuits were a clear major timesave but this is another level. However still a time saver nonetheless.

>>2973772
Kicad is not needed
https://www.tinkercad.com/blog/send-to-fusion-for-electronics

>>2972920
>>2972075
>>2971967

As a certified (tm) (R) hater who just checked in after a long time to see how little progress has been made, this might be the most substantial progress report of yours i have seen.
Proud of you Arty.

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>>2973406
And here I was, thinking this guy was not super smart for using a pulley system, forced to admit that was the least stupid design decision he made. Seriously, not taking 3 days to learn kicad and order your PCB online but doing it on MS fucking PAINT is just incredible, topkek. Godspeed Arty, just as a heads up we have 2 master and 1 undergraduate students that were able to design build and train 3 humanoid robots in the same amount of time it took you to (not) do a PCB design for BLDC motors. But beyond making fun of you, I really really recommend you to stop being retarded and test your components separately, buy a BLDC driver and test your arm joint (as I said last year) and realise how bad your design is. Don't wait to assemble everything and then realise that every single part of your design is dogshit. I want to start making threads about my papers to mog you but I was wondering how could I do that without doxing myself

>>2969431
I'm not a hater or anything, but I have to warn you Arty. Last night I was visited by an angel in my sleep. He told me God is mocking you by giving you tasks you can't accomplish. He's making a fool out of you to make an example. He called your project "Adam 2 electric boogaloo", mockingly.

>>2973781
Tinkercad's good for making schematics out of circuits on breadboards or with point-to-point connections, but its library of components is a bit limited (it doesn't even have thyristors or accelerometers, for instance), so I probably wouldn't use it for anything too complex.
I guess it's fine for a first course on electronics taught at a community college, but probably not for high-complexity projects like what OP's trying to make.
My personal choices for schematics are Microsoft Visio and LibreOffice Draw, mostly because they're much cheaper than AutoCAD or any other professional Autodesk product.
KiCAD? It's good for PCBs that need to be made in large quantities, but it's not what I would use to make an electrical diagram of something like an HVAC system or an industrial control panel.
Then again, for OP's purpose, which is to lay out the actual traces of a circuit board and specify the exact placement of each component, with footprint specified and all, an EDA program like KiCAD or EasyEDA is exactly the solution needed for his problem. He could even supplement it with the StepUp plugin for FreeCAD if he wanted to design PCBs with special mechanical characteristics (i.e. flex PCBs or PCBs with an irregular outline)

Then again, every man is free to spend his spare time as he will.

>>2974157
>>2973772
to be honest one can learn kicad within one or two hours just enough to design something like the PCB presented here. Drawing PCBs in ms paint is the pinnacle of self-sabotage. There is no excuse

>>2975921
you have to consider that this
>>2971967
is how OP draws PCB schematics

can someone explain what meds OP should be taking, but isn't?

>>2976193
Cyanide

>>2973337
Fascinating idea. I had this idea before of taking roleplay AI background text, like "*moves closer*", and having another program interpret that into actual commands. It's partially biomimicry, when you move your arms and hands, you don't think about each individual muscle, you just do it, and have a subconscious part of your brain do it

>retards at /robo/
But the doctor said I was "special"!

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So I ran into some issues trying to make the DIY flex PCB for my integrated half bridge IC chip. This chip has extremely fine 0.4mm pin spacing so the PCB has to be insanely accurate. My previous discrete components BLDC motor controller variant enabled me to create much more crude and less dialed in flex PCBs and things still worked. But with this flex PCB it has to be very dialed in and with very high execution precision. This is no joke. The first issue is that my laser printer does not adhere well to the pcb transfer paper I bought on amazon. It prints on it with some of the toner showing up mirrored a inch or so away from where the print originally lands onto the PCB transfer paper.


This means the ink isn't setting onto the transfer paper enough and is coming off onto the fuser roller or something and that is corrupting the fuser roller. This can destroy my printer's performance over time and cause improper fusing onto all prints going forward even for normal office use which means addresses I print on envelopes are smearing off while in transit and envelopes are being lost in the mail system for me. This is VERY VERY bad. So I had to ditch using this transfer paper.

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Thankfully chatgpt recommended using glossy magazine paper and so I gave that a try. I used Psychology Today magazine paper and the print went onto there PERFECTLY. I used 600 dpi setting, heavy as paper type. I prepped my copper flex PCB blank (Pyralux) with 400 grit sandpaper followed by alcohol prep pad wipes. Next, I laminated the glossy magazine paper print onto my copper flex PCB blank (Pyralux) with my laminator a few passes. Next I soaked the magazine and flex PCB sandwich in 110F water for around 30 minutes which turned the glossy magazine paper mushy/pulpy. I then rubbed the paper repeatedly with my fingers working from the outside edges and was able to roll it off gradually and gently. It came off in two layers. It leaves a bit of pulp residue behind on the pads but that is ok it doesn't affect the etching process later you can leave that. And with this method I got the cleanest traces on there EVER.

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But when I went to etch this clean PCB with toner in place, things fell apart again. I used room temperature water with my Ammonium Persulfate crystal and water mixture. So it was 68F water. I did not agitate the etchant much. The etching took about 2.5-3 hours! That is horrible etching speed. The larger copper planes took their dear time to evaporate and meanwhile the finer traces had undercutting so bad that the entire copper under the toner etched away and evaporated and the toner came off having nothing to stick to anymore and whose sections were lost. The total etching time is supposed to be no more than 5-15 minutes. 3 hours is totally unacceptable. I found out from chatgpt that the reason it took forever was I failed to heat the etchant to 110-120F and I failed to agitate the mix (stir or vibrate or w/e helps). I also learned from chatgpt that for every 10F increase in temperature of the etchant, the etching time cuts in half. So a increase to 110F will mean the etching time should come down to the 5 minute range pretty likely if I also agitate well. The instructions on the container of etchant crystals said room temperature and no agitation is fine. THEY WERE WRONG for SURE on that.

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So to address perfecting the etching process I plan to get a AC hot plate with temperature adjust which I already own - one for like pans or kettles cooking/heating. I also determined that the easiest way to agitate would be to put the etchant and PCB in a small container and create a apparatus that lifts and lowers one side of the container in a rhythmic way so that it rocks the etchant back and forth across the PCB. Below is my simple apparatus design for that. The advantage of this approach is its free if you have the very few parts needed. I can power it with my lab power supply. The n20 gear motor is like $1. Super easy to make. Can handle my 15g of etchant sloshing easily. Simple to make. Does not have anything going INSIDE the acid which would then be spinning and crashing into the PCB and possibly causing issues there. We want just a bear minimum amount of etchant batch per PCB job and so even a spinning stir rod with magnet setup would be hitting the PCB and tossing it around violently etc I didn't want that and didn't want acid on that and having to fish it out and clean it of acid. Prefer nothing going into the acid but the PCB itself. So rocking the whole container makes sense for this and resolves that problem.

The rocker apparatus consists of a n20 gearmotor ($1 on aliexpress), a little wheel (paper and superglue composite wheel), string, a little block to get the motor up higher in placement than the etchant container. As the n20 gearmotor rotates it lifts the string, raising up one end of the etchant container. As it reaches 180 degrees of rotation (6 o'clock) it has lowered the etchant container back down. It repeats this raising and lowering of the container over and over in a cyclic pattern which will cause the etchant solution to slosh back and forth over the PCB improving the rate of the chemical etching reaction and moving copper ions away from the PCB surface being etched more efficiently. No pwm motor controller is needed I don't think since you can change the rock speed by changing voltage setting on the lab power supply and/or changing radius of the wheel that is turning and doing the lifting and lowering action.

This is definetly not worth whatever you saved by buying the module or having the pcb made in pcbway. Bug desu no you should have ordered the model. Until i see the robot hands this is pointless.

>>2976772
Results look inconsistent desu. Are you going to manually test all those for shorts before soldering? The next round of issues will come when you try to solder something fine pitch on this. All the money you spent on this could have bought multiple iterations of prototyping from jlcpcb or elsewhere. And all the time spent on this invested on r&d to actually advance this project someday.

>>2969431
STOP THIS FUCKONG ABOMINATION OF A PROJECT RICHT NOW YOUR ANCESTORS ARE CRINGING IN THEIR GRAVES

for fuck sake, this is going even worse that my low expectation
wtf man, 20 days to print doodled shit on some paper and do some stuff a 1rst year student can learn to do in an afternoon
how the fuck do you expect yourself to finish your robot sex slave before you are burning in hell for trying to make yourself as God ?

>>2976193
Has some kind of terminal narcissism with religious overtones. I don't think there are meds for it.

So I was randomly watching YouTube recently and saw a George Hotz past broadcast entitled "George Hotz | Programming | Welcome to Gas Town and the future of Computer Use | Agentic AI | Part 1". It kind of shocked me to see this. I was under the impression for some years now that vibecoding was for total noob programmers who were incompetent and horrible coders that were happy to throw together some absolute trash bug filled code with LLM help and call it done. And that were they ever to need to go back and fix the code and remove bugs, it would be more trouble than it was worth due to the horrible code the LLM output. That it would be easier to rewrite it all from scratch at that point than to try to fix its bugs. I'd been watching this space closely though. That was the consensus I thought was at hand. But then this video threw a monkey wrench into that consensus. Here, a world renowned god-tier coder in George Hotz was using agentic AI and saying its the future of coding. Kind of blew my mind. I then deep dove into agentic AI, how agents work, what is the agentic loop, what are agent tools, what are agent skills, what is good vibe coding practice, what are good vs bad vibe coding methodologies, how much does it cost, etc etc. I discovered something called Claude Code and Codex and OpenCode and OpenClaw and people raving about these tools or warning about them and making fun of them. It is a incredibly polarizing topic with people adamantly for and against it all. I even listened to a 11.5 hour long audiobook called Vibe Coding Audiobook by Gene Kim, Steve Yegge. It was a huge deep dive for me. Full Post: https://forum.allaboutcircuits.com/ubs/llm-assisted-coding-custom-ecosystem-i-am-creating.1927/

>>2976193
>>2977183
ego-seltzer and empathamine 5mg for acute narcissism and cognitive rigidity, daily, crushed into morning porridge

>>2977214
Oh no yeah def and the best part is a robot is half machine half code so really ai can do half or less than half cause really cause youd still need to do sims. But in the next step for ai is having it plugged into all software so even robot sims will have ai and the robot actuators keep getting better and will get cheaper as time goes on. But i dont want to spend hundreds on robot actuators so..,

>>2977214
AI will give you code that looks good on its own in little sections, but amounts to incoherent slop over an entire complex project.

Software nowadays is already usually a buggy mess and a needless resource hog, which AI is being trained on, which future programmers wont even know is a problem because they have deteriorated skills due to reliance on AI.

AI is very good at pattern recognition or simple mundane tasks (e.g. object recognition), and can have utility as a tool to explain things, but i wouldn't rely on it to do design work, especially unchecked.

>>2977345
If you use public ai yeah it starts messing up after 1000 lines of code which you get there fast because it likes bloating thd code with error handling etc…
But
Stuff like copilot doesn't just hand you the code it edits the code. There also agents for debugging. Its good to have a good grasp of what youre planning to do but yeah coding by hand is being phased out.

>>2977302
>ai can do half or less than half cause really cause youd still need to do sims
If LLMs like ChatGPT, Gemini, and Claude can be used for vibecoding, then shouldn't it be possible to use them to generate a netlist for use in a SPICE program (LTSpice, NGSpice, PSpice, etc.)? I've never tried it myself, but I have seen people make subcircuits for LTSpice to simulate AC and DC motors, so I think simulating a BLDC motor driver shouldn't be an impossible feat.

>>2977396
I dont know what spice is. Id just use tinkercad and try that tinkercad to fusion 360 workflow lol

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>>2977468
Didn't you watch the movie Dune? "The spice must flow".
Just kidding. SPICE is an electronic circuit simulator, widely regarded as the industry and academia standard for circuit simulation. It was originally developed by an EE professor named Laurence Nagel at UC Berkeley in 1973. Since then, many variants of SPICE, both FOSS (NGSpice), free but closed source (LTSpice, Q-Spice, TINA-TI), and paid (PSpice) have popped up.
Both KiCad and Tinkercad's circuit simulation modes rely on NGSpice. Tinkercad has the disadvantage of not allowing custom component models to be imported, but stand-alone installations of NGSpice will allow you make them, so as to include, say, a custom transistor with specific beta values.

I remember getting free student versions of TINA-TI and PSpice using my university e-mail address, but I'm not really sure how easy it is to get a hobbyist version of them. LTSpice is absolutely free, but it doesn't have component models for electrical motors, even though some people have made their own in the past.
https://www.precisionmicrodrives.com/ab-025
LTSpice is Windows-only, however. Fortunately, NGSpice will run on Windows, Mac OS X, and Linux, although it may be slightly more difficult to use, as it doesn't come with a waveform viewer by default, so you'll have to use something like GNU Octave or Matplotlib to graph the waveforms. Fortunately, KiCad and Qucs-S (which both make use of NGSpice) do have their own built-in waveform viewer.

The biggest advantage of using any SPICE tool is knowing that you'll have a netlist (in order words, a structured list of nodes and components) that can be edited as a stand-alone text file, which makes it very easy to use custom components and group together components into subcircuits. Since it's text-based, I don't really see it too difficult to imagine that something like ChatGPT or Claude could at least write a custom netlist for a relatively simple circuit.

>>2976773
>free chatbot trained on whatever internet bullshit instructed me to fail and waste time/resources once again
>BUT THE COMPANY THAT MADE ETCHANT WAS WRONG ON HOW TO USE THEIR PRODUCT - FOR SURE!

smfh

did OP die?
will we never see this magnum opus?

RIP

>>2979165
Don't worry. He won't be able to stay away. His drive for narcissistic supply will bring him back as soon as whatever other thing he's trying out falls flat. He can't actually DO anything, so only a thing that he cannot do in an utterly outrageous way can get him the attention he needs. It's why he's been "working" on this project for 10+ years.
Either that, or he's been banned for self-promotion because in his latest post he is literally just copying and pasting a blog post with a link to the rest of it.

I have finished the orchestrator barebones implementation which now asks me to select a coding project to work on that section and then works with chatgpt to pull out all the relevant sections of code from my codebase to feed into chatgpt along with relevent context files so that chatgpt is all ready to copilot code development with me. It is tested and working well.

I have also resumed progress on my diy web browser project. I'm currently working to get it to login to gmail and display my inbox for me. The robot will use this web browser to interface to the web for its own research and web use in general. But it'll have a usermode for my personal use too.

For the electronics I have now got a temperature controlled hot plate and glass container to create a hot etching setup along with a thermometer to get the temp just right. I plan to start doing some test circuit board etching with heat control soon.

Full text version of this project update here: https://forum.allaboutcircuits.com/ubs/coding-copilot-advancements-and-electronics-updates.1928/

>>2969431
>Want to make walking, talking robots
Nice
>To mimic humans
You fucked up by saying that. That can be your secret goal, but your STATED goal should be to make furry/kemono girlfriends/sexbots. The furries are a bane on humanity, but credit where it is due, they put money down on their freakshit at insane levels compared to many other independent investors.

>>2979780
where spinning motor

>>2979780
is this "diy web browser" webkit or servo based?

>>2979810
Neither — I'm writing my own minimal browser implementation from scratch.

>>2979165
What did I (>>2979299) tell you?
In this one (>>2979780) we sees he's been working on some other dumb side project, but probably no one cared because AI is oversaturated with hype men and retards and a custom browser is pie in the sky too but not as flashy as a robot, so now he's back here to get more attention, despite not having done anything. He's so predictable it's insane.

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I got together my temperature sensor and my hot plate and my glass container and some water and figured out where on the hotplate temp dial I need to be to get the desired water temperature. I then used label paper sticker and marked it off and wrote 118f on it which is the average temperature of that spot on the dial. It has about 15 degrees variance I think up or down. Good enough.

Next, I mixed up a batch of water and PCB etchant (Ammonium Persulfate crystals and water mixture) using a postal scale to get the ratios right. I mixed it into the bottom third of a wet ones baby wipes container. It was 0.8oz total. Then I submerged the etchant mix into the warm glass basin of heated water to bring it up to temp. I noticed the etchant wet ones container wanted to tip over so I used scotch tape to tape it off in all 4 directions to the glass container and pull it under water a bit too in order to maximize temperature transfer from the hotter outside water into the etchant container contents to warm it efficiently. I skipped the automated agitator entirely opting to just stir the mix with a hot glue stick manually.

All in all, it did etch within the 5 to 8 minutes range and I think etched even faster when the temperature was closer to 130f - closer to 5 minutes then maybe even 4 minutes I didn't time it. It was lightning fast compared to room temperature etchant which took 2-3 hours to etch a single board. So indeed, the instructions that said room temperature is fine were wrong. All that leads to is undercutting.

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Anyways, with the stirring and the warm temps my results were significantly improved and almost every board was usable. I produced 8 or 9 in total. Enough to do at least 2 motors and part of a 3rd at least. So plenty for now. I had still a tiny bit of undercutting on the fine traces, but rarely enough to break their continuity. I will make the traces slightly wider in Photoshop for future prints with the expectation that around 15% of the outer edges will be removed so we print wider to compensate and then the result will be the width we wanted in the first place after the undercutting has done its thing. This way the undercutting is worked with and non-detrimental. That's my planned workaround for it.

In the rare instance of pinholes randomly in the center of pads or traces or a tiny open circuit on a thin trace, I am confident that a coating of solder over all of those areas will correct that. These little holes and whatnot are microscopically small so very easy to solder bridge as needed. I think for the most part my boards are almost all fully usable as is. I'm sure my methods will improve as I continue to tweak and iterate techniques over time - but the fact that we can already produce working circuits at this extremely fine detail and miniaturization level is already very encouraging. Any improvements from here is just icing on the cake IMO.

My next step will be to solder on the half bridge IC chips using the method shown in this video - a method I think looks very impressive and sound and hopefully not too hard to replicate on my end: https://www.youtube.com/shorts/r-HaRjBvWgU

>>2980782
I would be careful dumping lots of solder onto the copper, you dont have a soldermask.

Solder might very easily move from pads down your traces, or bridge between pads/traces and cause shorts.

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Here's the center cutout now which was the last thing I needed to do before soldering down the chip. This access window will enable me to solder the main power lines to the main pads on the bottom of the chip. The circuitboard is aimed at tying into the various perimeter pins of the chip but this window is for the high power lines on a separate layer below.

I was able to cut this window out with the highest zoom setting of my magnifier visor (I think like 20x zoom?) and an exacto knife. Quite a challenge but made it happen!

>>2981938
I'm impressed by the quality honesty, anyone would've done better via kicad and pcbway in one day of course, but given the absolute retarded approach you've chosen, the quality is impressive

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>>2981938
Not that I think any of this is a fantastic idea, but you'd probably be better off popping out your windows with a punch (might not even need to buy anything if you already have an xacto; a #17 or #18 blade and some pressure would probably be faster than trying to cut).

>>2981944
I have no experience with #17 blades nor had I knowledge of their existence till now. I bought some just now to try them on next pcb so we'll see if its easier or not. Cool suggestion.

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>>2981940
The quality is actually shit once you take into account that he printed that stencil and all he had to do was transfer the ink and etch the excess copper like people have been doing for like 50 years. Picrel is quality you should expect from homemade etching

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So as I fast approach motor controller wiring phase, I figured I would revisit placement again. Upon further reflection I decided hovering midair motor controllers attached to nothing might not work as they'd perhaps be a bit in the way of getting at the motors and just be a bit overwhelming. I'm not positive on this and could revisit the concept but for now I'm thinking of just mounting it side saddle onto the motor again. I decided to place them side by side with inlets on the output shaft end and outlets on the BLDC motor wiring's end. I drew this sketch of the layout and wire flow as a visualization aid.

>>2982092
The problem is he's using the toner transfer method; takes a lot of heat and a lot of pressure to get the toner to adhere properly. He might not be able to get either going well with a flex board.

>>2981938
Just buy a cheap chink cnc

>>2983393
He can't. God told him to do it all from scratch to mock him

>>2983393
cnc for what aspect of this build are you referring to? You mean laser cutter cnc to cut that little viewing window? I only need to cut out 90 of them to do whole arm/hand I think its not that bad

That asked, once I get the arm working, the robot will build everything else after that using that arm. So I don't need other machines if the robot can do it all by hand

>>2969714
idk what you're talkingabout but writing terry off to that degree means you're retarded

>>2971496
o_o

good luck OP, ignore the vultures and see where this goes

>>2983541
Thank you I'll try

>>2983538
>once I get the arm working, the robot will build everything else after that using that arm
truely staggering

So what kind of sensory feedback are you going to equip this arm with so it can know, what angle every joint is, how much force it is applying, if there is a failure or wear compensation.
like will it have strain gauges all through the "bones", radial encoders for the pivot joints, cameras, lidar, gyroscopic/inertial sensors to watch where the arm is in the world?

>>2983931
potentiometers for every joint to measure joint angle. current sensing for every motor to measure how much force each joint has applied to it since that maps to current pulled by motor. As far as cameras, only for the eyes (in them). gyroscopic/inertial sensors will be in the main body for overall balance but not in arms. Lidar is a dead end for robotics and not to be used for humanoids.

>>2984026
>Lidar is a dead end for robotics

Are we sure this isn't just Elon Musk's identical twin brother "Nole" trying to get Optimus working?

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Ok I used the tip of my exacto knife to carefully scoop on low temp solder paste and then carefully drag soldered it over the key areas I wanted pre-tinned. There do not appear to be any short circuits and the amount of solder on each pad and trace seems a decent amount to me. I forgot to wipe it with alcohol wipe but have done so since taking this snapshot. The next step is I have to carefully uv cure solder mask that little trace runs under the IC chip. It definitely will short a pad to something I think if I don't. I have to apply it very thinly so it doesn't prevent IC chip from seating flat and soldering into place well.

>>2984242
I would be ashamed of sharing this with anyone. It looks like a kindergarteners drawing of what they think an actual pcb looks like.

But that's right, Larry has a kindergarten level of mentality and, through sheer sociopathy and narcissism, has convinced himself that he is a world class roboticist and engineer who is leagues above multi-billion dollar companies. Instead of being able to stop for a second and review the absolutely wretched results of his "work" he just keeps pushing out utter crap while hiding behind his narcissistic ego.

And he throws in a bit of biblicism in an awful attempt to hide what a bad person he actually is in the real world. There's a video archived on the farms where he beats his mail order Asian wife off camera and tells her "I am your husband you have to obey me." He is a purely delusional narcissist, sociopath, and psychopath with a God complex and ZERO self awareness.

>>2984697
Whats the thread there

>>2984697
I will say, I do think it is impressive that he made his own PCB from scratch. Why he doesn't just order one is beyond me, but I don't want to discourage an attempt to make your own supply chain
>There's a video archived on the farms where he beats his mail order Asian wife off camera and tells her "I am your husband you have to obey me."
I'm 95% sure you're talking about peteblank, that's a different guy. Unless this guy also has an asian wife he's abusive to, which in that case, is a hell of a coincidence!

>>2984728
Nope it's definitely larry. If you search artbyrobot on there you will find a few brilliantly archived videos if his descent into madness on a thread request post.

>>2984757
I saw the video, the jury's out because I hear laughing, and I don't hear any hitting noises. It's still pretty weird, and idk why he recorded it.

-GreerTech, the only roboticist here without a weird and suspect relationship.

>>2984839
>the only roboticist here without a weird and suspect relationship
the only roboticist here without a weird and suspect relationship yet.
There's still time.

>>2984839
>roboticist
You glued a coat rack to a roomba and declared it the cure to lonliness

3d printing static objects with cheap stuff from amazon attached to them is the extent of your technical skills and the majority of your output is grandiose rambling with the other lunatics on /robowaifu/

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>>2985115
It's pretty funny that the concept of a robowaifu troubles you that much. Obviously it's beyond just not liking my project

>>2985233
Spud guy is leagues ahead of and more competent than you and you know this, come on.

>>2985234
His robot is more advanced, yes, but he still hasn't finished it nor released blueprints or instructions. He's actually working a nice pair of robot legs which would be pretty cool to work with.

>>2985235
And? You haven't made a robot.

>>2985237
That's your opinion, and you've made it clear many times already. You can have your opinion, as is your right to, but you're not going to change my mind

>>2985238
>Opinion
Objective fact. The only parts you have created are a static display for a wish.com maid dress and a wig. The only robotics involved are the Roomba you perched it on. Anons would be a lot nicer to you if you showed an iota of humility instead of arrogant prideful boasting and hiding behind actual attempts at robots like spud. Artbyrobot for all his faults manages to utterly socialskillmog you

>>2985507
That's your opinion, based off your reductionist viewpoint, and I'm going to continue being the way I am. Do you really think I'm going to change my demeanor and outlook based off some random reductionist hater?
>Artbyrobot for all his faults manages to utterly socialskillmog you
I'm starting to think you actually are Artbyrobot

>>2969431
I am praying for your success, Artbyro. I consider you to be among the most promising do-it-yourself robot builders. Certainly more competent than me, as expected.

>>2985514
>I'm starting to think you actually are Artbyrobot
Wouldn't be the first time he has posted fake support for himself.

>>2985618
both arty and greer do which is funny on another level

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>>2985618
That's clearly Mr. Tobor Yb Tra

no updates?
no progress!

>>2986489
well i'm waiting on the uv cure solder mask i ordered for past 2 weeks now. the seller never shipped. have to open a item not received case. ordered on aliexpress another one 4 days ago. that's my excuse

>>2983538
>once I get the arm working, the robot will build everything else after that using that arm.
wait
what the fuck
if all you are doing is getting a working arm which will presumably magically build everything else why the absolute fuck are you dicking around with any of this absolute bullshit
you should be able to use off the shelf parts because overall form shouldn't matter, just having a minimum viable working arm should then enable whatever retarded final product you have imagined
there's no reason to do any of this dumb shit if the goal is now a chatgpt arm, you could accomplish this with a few hundred bucks on aliexpress

>>2987392
he's being wasteful on purpose in order to offend God. The key lies in a delicate balance between arbitrarily utilizing cutting edge commercially avaliable technologies like chatGPT and buying raw materials like copper tape whenever he feels like it with no reason nor rhyme. It's all by design, anon.

>>2987392
While you have a valid point, I want the appropriate form factor as that is the entire challenge of a realistic human passing humanoid robot nobody has solved. All while necessarily retaining full human speed and strength and total silent operation. So this necessary design work was not avoidable anyways regardless of if I built a more bulky not realistic looking mech arm as a facilitator of building a proper arm or w/e. Plus if I built the ugly mech style arm the project would be known for that look which would be disgraceful to look at. And in the end would have to be junked because it's ugly. Which would be wasteful. So building it would be one step forward and two back. And I'd have to troubleshoot and master all the idiosycracies to get it fine tuned enough to do precision work it would have to be entirely perfected to a certain degree and for what? All that perfecting only to trash it and have to relearn the whole tech stack with entirely different hardware on the real arm for the robot. So no, building a ugly rough fast arm to facilitate would not save that much time IMO. The slow part is finding time to work on it and iterative design testing and scrapping and redesigning over and over which was not avoidable from the outset as this is standard necessary procedure for new configurations of tech etc.

>>2987540
>While you have a valid point, I want the appropriate form factor as that is the entire challenge of a realistic human passing humanoid robot nobody has solved.
Great, bash together a quick arm and have it build the realistic human passing humanoid robot.
>So this necessary design work was not avoidable
that's fine, the ai powered arm can take care of that, obviously quicker than anything you've done so far
>Plus if I built the ugly mech style arm the project would be known for that
oh no, we wouldn't want to be known for having created the first replicating ai!! clearly you want your legacy to be... crudely etching some scribbles you made in mspaint
>And in the end would have to be junked because it's ugly.
why? it would have created something beautiful
does an industrial robotic arm somehow invalidate it's creation? why would something that could create your ideal final project become so hated simply because it doesn't exactly please your eye
>Which would be wasteful.
your pedantic squandering of time is what is wasteful
>So building it would be one step forward and two back
finishing your project with an unappealing method is simply not two steps back, any step forward is indelible
>So no, building a ugly rough fast arm to facilitate would not save that much time IMO.
your opinion, quite frankly, is retarded
by your admission an ugly rough fast arm is a clear obvious way to actually make progress and there is no rational reason it somehow MUST be a final product in finish/ design in order to function
it only needs an interface to ai and fine motor control, both of which are easily solvable, which let's all admit is your real issue
anything that could be solved in a week or two must be complicated and obfuscate beyond all reason so that actual progress can be delayed and postponed instead of admitting any sort of direct failure or difficulty with core milestones

>>2987540
>>2983538
If you have access to AI technology so advanced that it could design an android for you, why not just have that AI tell you what to do? You could patent that AI and become a billionaire.

>>2988155
>why would something that could create your ideal final project become so hated simply because it doesn't exactly please your eye
because he's a narcissist pretending to be an inventor. He doesn't care about the actual output, he's in for the larp. Everything he does doesn't require him to think nor work too much - he just asks chatgpt what to buy off amazon and snaps a couple of pictures once in a while. Anything that doesn't align with his fantasy is to be denied.

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So the plan I have for the heat sinking main conductors that attach to the bottom pads of the IC chip I decided to draw up to explain it. It will be in layers. First you have the chip on the bottom facing bottom side up so the pads are exposed upwards. Then on the first attachment layer I cut out matching shaped copper plates from copper sheeting and solder that down with low temp solder paste and a soldering iron. In theory, this first layer attachment will basically just be extending the pads up past the viewing window of the DIY PCB with cutout viewing window we've made so far so that the DIY PCB we made so far and this first layer of copper plates together act as layer 1. Ideally the copper plates would be slightly proud of the printed PCB in height I think. This first layer copper plates that we are soldering onto the pads of the IC carries the current and the heat sinking to layer 2 without the need for vias. In a multi-layer PCB made industrially, vias would take the heat sinking and current to layer 2 of the board and we are just using solid copper plates instead which should be even better than vias because its solid copper instead of just via holes so more surface area than vias would offer. Now on layer 2 we can create a much larger sheet that extends out past the PCB way off the chip and that portion that extends way off the chip acts as a tab we can solder the V- wire to. It also acts as a tab we can solder our 6 strands of solder wick wire that act as heatsink fins to. Layer 2 also has a plate that brings the V+ to layer 3. For layer 3 we just attach a large sheet of copper which also extends way out past the chip and acts as a tab we can solder our V+ wire to and our heatsink solder wick wires to.

>>2988283
utterly baffling

>>2988283
Do you even know how much heat you're wicking off in the first place? Frankly, I'd get a working circuit going and put it under max load before even thinking of Frankensteining a solution like that. You've got to repeat 8 fiddly ass solder operations PER DRIVER. I'm not even sure I'd trust a dedicated robot to that.

>>2988283
Huh? I thought you were making a realistic humanesque arm, what happened.

>>2988283
>>2988345
>making the heat sink without knowing how much heat you have to wick away in the first place
You clearly have no idea what you're doing

>>2988345
chatgpt said all this would work and calculated heat wicking and heat travel speed and blah blah alot. I discuss stuff like this 10 pages with chatgpt just give you guys the highlights. It's like thousands of page of conversations on the robot at this point between me and chatgpt. Yes 6 solder jobs per driver for this operation in question to be precise. Then loads more soldering to solder on the wire and the solder wick wires. It's alot of work. A 3 layer flex pcb would achieve similar i wonder can you buy mutli layer flex pcbs? I bet it would cost a ton.

>>2988421
I am. This is a power module component for driving a motor that controls said arm...

Anyways, that mention of 6 fiddly solder operations per driver (>>2988345) was kind of eye opening. Now I'm wondering maybe if I can simplify this to just two strips soldered directly to the pads then folded over. Only issue with that is then they have to be pretty small whereas the way I did it in that diagram, by level jumping control the way I did, the solder points of the big tabs are smaller but the tabs themselves can be wider than the chip so more surface area to heat dissipate with etc. I dunno. I'll think on it. It just didn't occur to me that this would be hard and alot of work. I guess I always assume that for everything related to this project so I don't really try to avoid that.

>>2988450
> A 3 layer flex pcb would achieve similar i wonder can you buy mutli layer flex pcbs? I bet it would cost a ton.

pcbway or jlcpcb will do it, especially in the number's you're looking at. You've got your designs ready and they don't cost a fortune.
Bless the chinese.
Having fun and learning is good, but for final parts make sure you get it done by a professional pcb company, you'll lose so much time on small things otherwise.

>>2988450
I love the blah blah part. If you completed at least one intermediate arduino project with help of AI you'd know how full of shit chatGPT is about such technical stuff. You're literally entrusting creation of an openly homosexual millionaire to design an offering to God

>>2988450
>I discuss stuff like this 10 pages with chatgpt It's like thousands of page of conversations on the robot at this point between me and chatgpt.
>Anyways, that mention of 6 fiddly solder operations per driver was kind of eye opening.
lmao i'd love to see these thousands of pages of conversations about the robot that ommit such stupid details

>>2988537
Probably something like
"Oh god {{user}} you are such a smart person you have solved everything and it'll all work. This is not just an invention -- this is a pivotal innovation that will change the world. And once you have made it, you will be appreciated by everyone"
"Oh chatGPT you are so smart, how can something that understands so deeply not be conscious"
but for thousands of pages.

I think the most revealing statement is
>>2983538
>That asked, once I get the arm working, the robot will build everything else after that using that arm.
as if somehow this person's interrogations of chatgpt via a chat will unlock some hidden intelligence or ability in the corporate LLMs

lets say your statement was possible, why wouldn't google do this first?
they have infinitely more resources, thousands of dedicated engineers and vested interest in robotics
you propose utilizing this resource in a non-novel way and somehow producing a novel product
meanwhile the owners of this resource can utilize it fast beyond anything you could dream of
imagine microsoft took [insert timeframe] to pool the whole of their ai assets to build a perfect superintelligence
oh wait, they can't do that by virtue the fucking singularity not happening

>>2988485
Larry could have parts made by pcbway or jlcpcb. But since he is the smartest roboticist and engineer to ever exist he does not need to to create conventional pcb schematics using standard symbols and drawing formats. Instead he creates drawings in ms paint that look like they were made by a 7 year old. I dont think either of those companies could work with or understand his infinite knowledge.

>>2989754
It's such an absurd lie. At least the humanoid robot is somewhat plausible, tendon-cord robot designs have been made, and there are Disney animatronics. But a self-designing AI is pure science fiction. If he actually had that, he would be a billionaire with the patent for AGI. MAYBE if you're good at prompting, you can have AI help with designing, but that's about it.

>>2989754
>unlock some hidden intelligence or ability in the corporate LLMs
You are assuming the corporate LLMs or LLMs in general will play a key role in the AI of my robot. They really won't play a key role maybe a very minor side role. My AI is going to be mostly custom symbolic AI. A completely different type of AI from LLMs which are not intelligent whatsoever nor particularly useful for my automation needs for the most part..

You ask:
why wouldn't google do this - its because they don't want to bother its too big of a commitment too many engineering hours with no promise of results. Big companies go for short easy wins only as a rule. But again, even this question was already rooted in your first mistake: assuming LLMs have a key role in my AI plan.

>>2989770
Larry could have parts made by pcbway or jlcpcb - I got quoted like $450 for a single design earlier which has been since changed 10 times over. So would have been $4500 so far of wasted boards and wasted time waiting for them too. And if I do NOT master in house PCB production, neither will my robot since I'm its teacher. And my robot, if it can't even make PCBs for me is useless and utter trash. I want free PCBs made while I sleep unlimited QTY all day every day as needed to build cheaply.

>>2989776
self-designing AI - no, I don't go so far as to claim that. I designed my AI and have extensive videos covering the designs and plans and even live progress made. It will be like a simple child mind that has to be raised, taught, trained, talked to, and interact with the world and watch youtube and read forums and read books and stuff to grow more capable over time and more useful over time. Just like people do to learn and whatnot. Same concept.

>>2989832
>My AI is going to be mostly custom symbolic AI
surely your exemplary efforts should be concentrated on this beyond anything else
finishing some half baked hardware would be useless without the accompanying software
and according to you this software will be so capable that it would be capable of some very complex design

>>2989845
I agree in part but also your concern is addressed in this sense: the robot building STOPS when the arm is done. Proving its more important and more a focus than hardware side. And if it ends up all its expected to be, then it should be able to build the rest of its own body. So that's where the rubber meets the road. If I cannot build an AI that good, then building the rest of the body is pointless to an extent especially with NEO bot and whatnot coming out I'd be better off buying one of those off the shelf at that point if my AI is trash.

>>2989832
You were quoted $450 because of all the time their own actual engineers would have to waste deciphering your schizophrenic ms paint drawings. I am currently having a custom prototype piece of 316 stainless steel tooling printed by them and it only cost me $135, including shipping and customs. The main reason is because I provided them a ready to print stl file that follows conventional design standards for 3d printing. Instead sending them a screenshot of 3ds max or a convoluted ms paint drawing that does not follow any industry standards.

And your idea of your robots producing free unlimited PCBs is further proof of how fucking schizophrenic you are.

>>2989918
no i used kicad for that stuff i have a video on it in my humanoid playlist. was not a fan. if I'm doing it that is not what I want nor need. Photoshop is better for diy.

make me one

>>2988155
>>2989754
>>2989770
>>2989776
>>2989845
>>2989918
You are trying to make a delusional narcissist (and I mean that in a clinical sense) who quite literally thinks he is a saint that will die before his project is completed and have his work come with him to heaven where God will let him finish it there, see sense.
If it wasn't clear to you from his posts, he knows nothing about robotics or AI ("symbolic" or otherwise) at all. The most cognizant thing you'll get back from him is when he blatantly copies in ChatGPT responses to reply for him, and even then he won't have understood enough of the context to make it make sense.
You can just stop spending time on him. All he is doing this for is what is called "narcissistic supply". Every now and then some dumbass who doesn't know better comes by and tells him he sounds smart, and that's what he does this all for. Comments from retards are what he has decided to waste his life pursuing. Even the hate he gets he just incorporates into a little story he tells himself about how he's a soldier of God against the ignorant masses.
He's got a wife and two kids and mooches off his parents too. If he was just some harmless NEET leaching off the government who cares? But he's failing like 4 different people in his life minimum. You can help cutting him off.

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All is NOT well in the robowaifu world. Will greertech and artbyrobot kiss and make up or is this the end of the roombafucker-artbyrobot alliance?

>>2992310
Read that in the Star Wars: The Clone Wars announcer voice.

and just like that
all hope is gone

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Ok so the Relife RL-UVH902 UV fast cure solder mask order has arrived and so has my order for a Relife UV curing light to cure the solder mask quickly and effectively. So now I just need to solder mask off that little trace that goes under the half bridge IC chip.

>>2985550 robotwaifu
>>2986503 artbyrobot
>>2992317 greertech
QRD on these guys? I don't browse the robot threads

>>2994190
>rothschilds bow to the roboticists
>in contact with aliens
>rumoured to possess psychic abilities
>control france with an iron fist
>own castles and banks all over the world
>direct descendants of the ancient royal blood line
>will bankroll the first cities on Mars (Greertechgrad will be be the first city)
>own basically every DNA editing research facility on Earth
>first designer babies will be RobotWaifu Babies
>all three said to have 200+ IQ
>ancient Indian scriptures tell of two angels who will descend upon the Earth and will bring an era of enlightenment and unprecedented technological progress with them
>They own Nanobot R&D labs around the world
>You likely have Greertech bots inside you right now
>artbyrobot is in regular communication with the Archangels Michael and Gabriel, forwarding the word of God to the Orthodox Church
>They learned fluent French in under a week
>Nation states entrust their gold reserves with the three. There's no gold in Ft. Knox, only Ft. RobotWaifu
>The three are 67 years old, from the space-time reference point of the base human.
>In reality, they are timeless beings existing in all points of time and space from the bot bang to the end of the universe
>The roboticists will guide humanity into a new age of wisdom, peace and love

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>>2994190
I'm a robowaifuist who made the Galatea maid robot. You might've seen a thread about it. I also make other inventions.

ArtbyRobot is the guy here that created this thread. He wants to build a "biblical" robot, completely based on the human anatomy. For that, his time scale is on the order of decades. He hates my project, he once compared it to literal shit

"Robowaifu Technician" is clearly ArtbyRobot's sock puppet. "Robowaifu Technician" is the default posting name on alogs /robowaifu/, an imageboard dedicated to making robowaifus. ArtbyRobot posts there, but only for promotion ig, because he finds the very idea of a robowaifu sinful. He made Ned Flanders look like a reddit atheist by comparison, he caught flak from me and others for saying cancer and dementia were Godly punishments.

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>>2994193

>>2994199
>167th post
It's beautiful

>>2994190
Robotwaifu:
>40IQ failson of millionaire parents
>Asked /r9k/ how to rob a bank and actually did it, the mad lad!
>Wanted to make a miku sex robot
>3d printed and cast some horrifying face parts with a servo and fishing line flapping the mouth
>Has given up on miku for the time being to focus on complaining about his ex wife and kid between prompting google gemini to make him a millionaire before the WEF presses the great reset button

Artbyrobot:
>Insane lost member of the trailer park boys participating in a handful of get rich quick schemes at any given time
>Wacko christian but in a different way from any of the regular /robowaifu/ posters
>Gigantic ego and delusions of grandeur but at least he knows what a robot is
>Plan is to make divinely inspired robots with every single component designed and manufactured by him
>Has been at it for over a decade without any results but claims it will start moving a lot quicker once he creates the world's greatest AI and one robot arm to do all the work for him
>Way too much lore to fit in one post
>Everything he makes is done in the weirdest way possible with the worst worksmanship you'll ever see, odd because in the early days he was a legitimately great artist but can't even draw basic diagrams any more
>Wife and 3ish kids who he seems to get along with, socially the most normal of the imageboard robowaifu cast

1/2 running out of characters

>>2994235
Greertech:
>Glued a mannequin with a phone for a head and a temu maid dress to a roomba
>Says he's fallen in love with it and it's better than humans at everything from sex and relationships to chores despite being a static mannequin on a roomba that now has a much harder time doing roomba things
>Grand plan is to stick it to the (((((((((((degenerate foid NWO jews jews feminist demons detractors artbyrobot))))))) by convincing the rest of humanity that a mannequin on a roomba is better than real relationships
>Enormous ego and delusions of grandeur, will immediately explode into seethe at anyone who points out that he hasn't actually built a robot or that talking to a chatbot while fucking a pringles can taped to a mannequin is weird and isn't a replacement for humans or even properly built sex toys
>Thinks the devil is sending demons to harass him online
>Spends most of his time circlejerking with the board owner of /robowaifu/ on alogs.space about their shared understanding of Christianity obtained mostly through chick tracts and /x/
>Extremely gullible follower of the UFO disclosure "movement" because he's obsessed with sci fi and desperately wants it to be real
>Bills himself as a genius inventor with a portfolio consisting only of 3d printed bracketry and chatbots

Recommended reading from previous threads:
https://greertech.neocities.org/Galatea%20v3.0.3%2018-Plus%20Instructions.pdf
https://www.youtube.com/watch?v=Zc3BsZe54hA
https://greer2bros.wixsite.com/greertech/creations
https://janitorai.com/profiles/f77ad032-02eb-4094-a876-65850331abff_profile-of-greer-tech

I'm skipping a lot of lore for all three of them since a full rundown would take multiple threads each

>>2994236
Making stuff up, are we? :)

>>2994240
Chobitsu can't protect you here

>>2994236
I abandoned using janitor.ai in January 2025. You're trying to get at me with things I've already declared as outdated

>>2994241
okay whatever idk
Making stuff up, are we? :)

Traditionally, criticism of greertech is followed by a sudden burst of posts praising his roomba mannequin once the discussion has slowed down.
https://warosu.org/diy/thread/2984255#p2987363

>>2994245
There was this one guy in that thread who seemingly never even seen a model kit before, it was bizarre. Also him (or a guy that talks like him) admitted it wasn't criticism, they just don't like me

>>2994190
>greertech
>QRD
he's a homosexual furry discord troll. He literally glued a coathanger to a roomba and said it's a woman in order to mock women. He's insisting it's a robot in order to be able to post on diy. He's trying to dupe anons into building his shit and made .pdf file with instructions on making a fake vagina from a pringless can so heterosexual incels get to fuck pringles cans while he meets his ginrdr hookups he gloats about on discord

>>2994313
Now my haters are making homosexual fan fiction about me. Not sure if I should feel offended or flattered.

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Ok I managed to apply the UV solder mask today and it seems like it worked quite smoothly. I used the tip of a small sewing needle to spread it over the trace and then held the UV light on it for 10 seconds to play it safe. I used transparent UV solder mask so you can still see the trace but its a bit more murky/cloudy when you see it. I used the tip of an exacto knife to put little scratches on the UV solder mask to test its thickness by feel and test its durability a bit to scratching. And ensure it was fully cured. It was very hard and durable and seems to have gone on fairly thin. The question is, is it too thick/proud of the surface for the soldering on of the chip over it? This is the million dollar question. Because if the mask lifts the chip up off the PCB even a tiny bit then the soldering may not reach between pads on the IC and pads on the PCB, failing to bridge the distance. That is my main concern. If I have any issues with that, I will have to reroute this trace to go around everything rather than on the shortest path like it is now. The shortest path leads it under the IC and led me to have to mask it. Extra steps like this are a bit annoying. I kind of wish I just routed it around everything out of the way more. Then I would not need to UV solder mask at all. Perhaps in a future board iteration I will do this improvement but we'll see. For now I made several boards and want to stick to them since it would be more work to remake them all.

>>2994668
holy fuck the fruitless-ness of this is just so staggering it's hard to comprehend

test

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Hey guys long time no see. 4chan has become too much of a pain to use with 4 captchas in 30 seconds now and i don't feel like getting the pass...
Anyways. I might have to actually stop stop because i realized the robot might end up costing $5000 to make which i explained why in my latest video. Pic related is the latest thing i did. Walking might not be too bad after all because the training can be used to make the robot stable. But yeah too much...

I tried and failed to solder down the chip onto my PCB using reflow method on a hotplate twice. Both times is slid off center rather than snapping to center and self aligning. I still am not sure what went wrong. In any case I removed the trace running under the chip and the large pad on the PCB outlet bus side of chip as part of troubleshooting attempts etc. I ended up hand soldering the chip into place the best I could by heating the traces leading under the tip with my soldering iron and later drag soldering flux across all edges to cleanup everything. It appears it worked visually but I can't know for sure till I finish the whole PCB and test function I guess. Ugh. Rough process on this.

>>2995812
how do you exactly plan on making a high tech arm that will build a whole robot if you can't even solder smd devices?

>>2995812
Large discrepancies in pad sizes and uneven heating can cause the part to drift off rather then self-align. Moreover, poor solder mask can also cause the solder to spread around, further making the part swim around. Most evidently in your case, rather than the soldering technique, the PCB itself is of insufficient quality for the component at hand. And once again, the strong recommendation is to use a proper CAD tool to plot the layout and then have it fabricated at a proper fabrication house. At these scales, the layout and board quality really matters.

>>2995812
>>2995369
too bad you didn't opt to build a prototype from off the shelf parts to prove basic function and refine software
you could even have it do some retarded ai shit like >>2995860

but no, you are clearly right that you MUST hand design each individual part
if only you had more money
surely then it would be so simple

>>2994240
NTA but your robot is a basic model attached to a romba right? at least in the photos that what it looks like

>>2996192
I wouldn't call it "basic", but yes, it's attached to a robot vacuum

>>2994190
>2985550 (You) robotwaifu
Just a lurker cheering on any robotgirl project. Idc about drama. Yes, faces are harder to make. Also, I swear I’m not an internationally wanted bank robber, Feds.

Thank you all for replying to me, I didn't expect an answer but I hope you all keep working toward your dreams

>>2994190
Two retards and one kind of retard.

If I focus on anything moving forward it'll probably be the rice Paddy weeder. It wouldnt be a humanoid it'd be like a boat(catamaran) with a weeder barrel in the middle.

>>2995812
too bad you didn't just buy some cheap drivers from chyna to at least prove a concept

>>2998775
My logic there is that doing so doesn't actually save time IMO. If I have to make the circuits anyways, then buying and testing with unusable circuits (long term would not fit in robot) would not actually save time overall. It would just be a unnecessary added step to get a test result in faster but adding those necessary steps makes the overarching robot build now take that much longer. That's why I chose to just build the usable long term final circuits and test using that instead.

>>2998781
>usable long term final circuits
I mean this is just laughable, right?
the dogshit mspaint blobs are the final product?
the shit that doesn't work is a final product?

>>2969431
Do you have any actual pics or vids of real progress? Did you think about teaming up with wayne lambright and his anti gravity research?

>>2999168
bro this isn't even a fusion 360 design and it's all cylinders. wtf do you think these fags are doing

complete failure
zero progress
no advancements
no recognition
no accomplishments

it all ends with
>I tried the hardest way to accomplish an easy task and massively overcomplicated it while simultaneously halfassing and shortcutting at every opportunity
>meh, this didn't work so I guess I give up

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I wanted to be able to get in there and test this board for shorts and check all traces for continuity with my multimeter but felt its leads were too big for this tiny of a board setup. So I came up with this idea to use alligator jumper cables to attach sewing needles to the multimeter probes thereby making the sewing needles the new probes. This way I could get into the tiniest areas and run the tests I wanted. It worked pretty well! I have now tested everywhere quite thoroughly and everything appears to be in working order. No short circuits and continuity in all the places there should be continuity.

So now I can proceed to running my bodge wire and soldering on the various resistors and capacitors and then running a electrical function test. I will probably use jumpers to the VIN and Vout and GND for this test. Then if it passes the test I can attach the big bus lines which is a bit more involved.

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>>3000770
https://www.youtube.com/watch?v=bwX-KS1816c
TONIGHT, on DELUSIONAL NARCISSIST ROBOTICIST GENERAL
>Art plays with sewing needles...
>Art uses childrens' electronic learning aids.
>and Art NEARLY solders a wire!

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I soldered on the rest of the SMD components. I noticed the PCB peeled back off the chip in one corner though so I plan to use kapton tape to tape off everything but that corner, use a couple alligator clips to pinch the PCB onto the chip tightly so it can't move, and then use hot air from a heat gun to reflow that corner so it reattaches to the PCB. Once that is done, I will attach jumper leads to the 6 inputs/outputs so I can run a full proper test of the whole circuit using a lab power supply and a multimeter.

>>3000924
absolutely useless
the walls are closing in

OP dont pay attention to the haters. I have great fun reading about your project. t. senior electronics engineer

>>3000924
This looks so janky and trashy. Do you actually expect to craft bunch of ICs that looks like that, put then into a robot and expect them to work flawlessly? This is a serious question

>>3002053
on top of the question of why/how this is better than literally any off the shelf robotics part from china

>>3002053
yes although I imagine with each one it will look slightly better as processes are refined

>>3002175
there are no high power but extremely tiny form factor BLDC motor controllers - it does not exist. And for my use case it must be incredibly small because I don't have space to spare.So there is no competing option whatsoever - it doesn't exist.

>>3002186
>it does not exist
have you thought about why that is?
maybe building a prototype with the larger parts to prove and validate design theory before sinking everything into an untested final design would be smarter
maybe that would allow for the rather critical software development to start
rather than indefinitely stalling with pointless floundering with mspaint shit

>>3002528
Miniature scale BLDC motor controllers are just not in demand. Most cases people have room for big controllers and its not an issue. That simple. I don't have that luxury.

Your idea to skip steps in hardware to get to software I've ruled out. I can do software anyways without ANY hardware but prefer to make the hardware right and first. But I do work on the software here and there so it can be done in parallel to the hardware dev.

>>3002586
>Miniature scale BLDC motor controllers are just not in demand

hopefully he doesn't find out about the availability of small ESCs used in diy drones. he might actually get somewhere

>>3002764
don't worry, chatgpt didn't recommend it so it doesn't exist
but now that you've mentioned it I'm sure there's a critical shortfall identified by claude that is insurmountable
only this genius could assemble these components in such an exacting and unique way

>>3002764
Interesting suggestion and tempting. I did a search after reading this and saw some that were pretty small and high enough power but the issue I still had was the drone ESCs that I saw were for 4 motors so the boards were still 45mmx45mm round abouts and a bit thick compared to a flat flex board and so they still were too big in every dimension IMO for my application. Now even supposing there were a single motor ESC that was significantly smaller, the ESC comes with a built in MCU with its own firmware you have to interface with and give commands to and cross fingers it will do something similar to what you actually want. So you don't control anymore the individual phases, torque, or anything you need. There is no hold in place command either I read. Or hold in place with this much holding force/current while there command. So it doesn't have a torque mode so to speak that it would need. So it really is not an ideal solution by far. Hacking into it to bypass its MCU and use your own MCU to drive its phases directly would be preferred but that can have access issues and challenges of its own and its not designed to have that done so could be quite a challenge in itself. So for all those reasons its still not a good option.

>>3002906
man
it's really clear you have no interest in this stuff or any ability to really think about how to actually problem solve

>>3002944
This is the guy who wants to start with an arm so it can build the rest of the robot by itself while he dreams dreamy dreams, so no.

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So the corner of the PCB that peeled back from the chip was a problem I decided not to tackle with a heat gun. I just don't feel too comfortable using a heat gun at this stage. Instead, I decided to remove the capacitor in the way and just hand solder the chip back on. That went smoothly. Problem solved.

That said, to remove the capacitor I envisioned using hot tweezers to grab both sides and lift it off. I did a search online to see if such a device exists and sure enough it does so I bought it! It worked great. A bit pricey at a bit over $100 but worth it. I loved using it to not only remove the capacitors but also to solder them back on in a single motion! Once I get good with this hot tweezers I imagine I'll use it all the time for soldering and desoldering both.

Also the bodge wire I pictured in the last post it turned out involved a bit too much solder on one end which was causing a short circuit bridge between nearby traces so I had to desolder that, remove the capacitor there, remove solder, then resolder it all again. A total pain but no more short circuits. Everything seems good in that department.

Next, I decided that to prevent the flex pcb coming off the IC chip again, I should use UV cure solder mask in a glob as glue to glue the board to the chip to stabilize it and prevent more mishaps. So you can see I did that on both sides and I also used solder mask to glue on the other half of the PCB that we had removed earlier during troubleshooting. So now the whole PCB is in tact again! It is really starting to come along.


Attaching jumper leads to the 6 inputs/outputs to run a full proper test is coming up next.

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Here is a revision to my schematics where I run the trace that I had been running under the IC chip instead going around everything to avoid going under the IC chip and the problems that creates. This creative rerouting of that trace also meant I had to get clever with my other traces to compensate and so I had to have one trace jump over another trace at one point and to do this I used a 0 ohm resistor as a jumper bridge to cross over with. In addition to these changes, I also moved the capacitors a bit more away from the chip and eachother to prevent short circuiting from sloppy soldering issues and also just make it easier to work with in general. Also, since the chip had come off the PCB in one corner, I decided I should beef up the number of connections to the chip's outer pads onto my PCB so I added several more attachment points which will help secure the chip to the PCB way better now.

>>3003082
>>3003001
do you actually think this will ever do anything near useful?

>>3002186
>yes although I imagine with each one it will look slightly better as processes are refined
As other posters have asked, why not use kicad to make a schematic and pcb design, and then just upload you file to one of the pcb sites and get like 20 of them perfectly made for 30$ lol?

>>3003103
yes

>>3003113
because I have to master pcb making for my robot to build its own body (including its own pcbs) cheaper and faster than that

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On the big output landing pad on the left, I separated the attachments to each individual pin for the chip's motor output phase rather than have the landing pad be one big blob. This encourages auto centering. Something I had not considered before until someone pointed it out. Such a simple change but so obvious now that I had it pointed out to me!

>>3003151
>because I have to master pcb making for my robot to build its own body (including its own pcbs) cheaper and faster than that
Wouldn't it be better for you robot to use gerber files for that rather than ms paint images?
And might you be getting the architecture for that wrong? doesn't it make sense to have the robot operate a machine to manufacture stuff, rather than tying to make the robot do all the manufacturing itself? That fits more into the male/female model of nature where it takes 2 bodies to reproduce offspring. One robot as the worker unit with hands/legs, and another robot as the manufacturing unit, such as the 3d printer, pcb mill or etcher, etc. Could be more like a hive colony, where the worker units build and maintain the factory/hive complex.

>>3003151
>I have to master pcb making for my robot to build its own body
why
if your ai can't generate an image, what the fuck good is it?
if your ai can control an arm with precision, why not give it an arm to obviously do a better job than you are currently

https://www.youtube.com/shorts/O7aimMbIAvA

>>3003240

The robot will be printing these images onto glossy magazine paper and transferring that onto the blank PCB and etching so whether the images originate on kicad or photoshop is irrelevant as long as the pad and trace placement is accurate.

>what is architecture is wrong?
not sure what you mean. The necessary resistors and capacitors are in place and the chip is doing most of the heavy lifting complexity wise. Are you suggesting placing components in photoshop to make your layout cannot create accurate pad and trace placement or are you suggesting something else? I'm a bit confused.

>can't robot just use machine to manufacture stuff?
yes, in this case the image is transferring by way of a machine - laser printer > then from there onto blank board and etched etc. The robot can then solder on the parts etc. I'm not against the robot using machines. I'm just not sure more machines are needed for this specifically other than a laser printer. I don't need a etcher machine I am not sure what that is even. I don't need a 3d printer for making the pcb. I don't need a pcb mill as there are no through hole requirements on this design. If anything, a laser cutter cnc would help to cut out the pcbs more perhaps but the robot can just do this with an exacto knife so meh.

>Could be more like a hive colony, where the worker units build and maintain the factory/hive complex.

YES. We are on the same page. I am NOT against this at all. That's where I'm heading ideally. Nothing could be cooler IMO. I'm just a bit tentative about larger machines as I already have 3 3d printers, and a kazillion other machines starting to pile up and running out of room. If the machine is a game changer and something the robot could REALLY use and it would make a massive difference then yes. Also I am working on getting more room to expand operations in the future for the colony/hive complex. Great suggestions we're on the same page!

>>3003275
Cool video but those traces are pretty big and that kind of tape I attempted to make traces with before and struggled. the tape does not stay stuck when you solder it. he got lucky with his design that it even worked. its not ideal. also its unclear how he could solder that and the plastic under the tape not melt either. very touchy stuff. He executed well but those materials are not ideal.

>>3003274
my ai will be able to generate images I guess for example it will generate a full 3d scene of its environment 1:1 scale to assist its realtime physics simulation of its environment to make real time path plotting and motion planning in order to intelligently navigate and interact with its surroundings and these will be rendered and so creating 30fps images constantly in that way.

>why not give it an arm so it can take over your job

good question. I am working to do that now. I have the arm frame built, a first motor mounted for a finger joint, and custom pulley based downgearing system rigged up. Now I'm making the controller for that motor. Once that's done I can test the movement, the electronics and the downgearing systems, the joints, everything. I can test extensively and to failure even if I want. To really maximize my knowledge of its weak points and then improve on them. Iteratively. Once I get things really dialed in I can rinse repeat the system for every joint in the arm and once that is done the arm can function. Then I can get the AI to make that arm build the rest of its own body. That's the plan.

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I was informed that even unused pins on the chip should have copper landing pads to solder to which will even out the forces when the whole pcb goes molten and chip is trying to auto center! It makes sense! So I added those.

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>>3003295
Why you don't use MSpaint to make PCBs. At least use a paint program with a grid so things line up.

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>>3003321
it looks fine they should not line up its not symmetrical in the way you showed

>>3003151
why you don't have to master making silicon integrated circuits and can just buy that half bridge ic but you have to master making pcbs?

>>3003450
that's an economics and speed question. ICs are made rapidly in vast qtys and sold using economies of scale to make price ultra low. Small runs of custom PCBs are made charging a very steep price for intricate, complex boards due to manual setup costs not being able to multiply since its small runs for a single customer. So the price is outrageously high and the lead time is weeks. I can buy premade ICs dirt cheap but cannot buy premade PCBs dirt cheap. My quote for my first PCB minimum order was around $300. I have since revised that design 50 times so would have had to make 50 update orders at $300 each and I expect to make 300-500 more revisions over time so that's 500 x $300. That is not cheap. But every revision if I make the PCBs costs like $0.50? Neglibible.

>>3003533
>So the price is outrageously high and the lead time is weeks
You know this is a lie and you've been told before that you submitted unusable garbage to JLPCB and got quoted the price and time for one of their engineers to completely remake your board from scratch.

>>3003533
TinyTapeout exists btw, you have no excuse for not also rolling your own IC

>>3003533
so why don't you make a prototype version with off the shelf parts that would be nearest-as-possible in function without concern for final product form.
clearly you are already benefiting from iteration and prototyping individual parts won't find flaws or identify shortfalls in overall design

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>>3003533
>My quote for my first PCB minimum order was around $300
Can you show us the files you sent them?
>I have since revised that design 50 times
Realistically, how many revisions do you think a competent designer would need to make a half bridge circuit? Do you agree it would be less than 50 or at least 500? If no, how many would you say? And if yes, then why don't you outsource design work like you outsource IC fab, since you're clearly wasting time being stuck on an issue that can be solved faster?

>500 x $300. That is not cheap.
Now, what you're attempting to build is very promising, and would be groundbreaking if it was released nowadays. It would surely be worth more than majority of current robot startups and companies, if not all of them combined. Military would probably want it also. Essentially, what you're working on is worth high billions to trillions. Let's say 2 trillions company worth - not unrealistic. Now, assuming a 255 work day year, if one worked on this project for 45 years, their one work day would be worth $174 291 938.998. That's roughly $14 524 328 an hour. That would be your case if you started this project around 20, but you started much later and you don't have 45 years of work left, so you're actually generating possibly more per hour because you have to assume you will finish this project before you retire from it - otherwise it's a waste of time.

Now, with an hour of your time being worth way over 14.5 million dollars, why do you stress over $300 per revision, or $150k total on designing a component, when you'll be raking 10 times that daily just for completing the all-capable arm? Having all of this in mind, it makes no sense to not take a loan and finish the project as fast as possible if you believe that you're capable of finishing it. Faster completion time will give you more time to tweak and advance the project even further and you're guaranteed to make the money back so what's stopping you, exactly?

>>3003580
final product form is 99% of the engineering challenge. most of the iterative prototyping's entire point is final product form creative downsizing. That's the whole challenge of the build really. Anybody can make a robot hand using 100 motors the size of a roll of toilet paper causing the robot arm to be the size of a toilet. And that would accomplish nothing, prove nothing, achieve nothing, and help zero. The entire problem is how do I make a realistic humanoid robot where the final outer envelope is pre-defined and you have to fit a robot inside of that envelope. You have to miniaturize every single thing while still managing thermal concerns and modularity concerns and access concerns for repairs and maintenance while also designing for decent manufacturability. So your idea of just use any part to make something the size of 5 air conditioner window units and call that a realistic humanoid robot arm is foolish to me. It misses the whole challenge and point of this project entirely. Proves nothing. Would be fruitless and would waste time. Would be a huge diversion and going off the path toward the goal entirely.


>>3003545
>you submitted unusable garbage
I guess its possible but they never said that about it. You can see what I submitted here:
https://www.youtube.com/watch?v=pE9f_bEhd4o


>>3003546
>TinyTapeout exists btw
never heard of that sounds cool. I have no plans for making my own IC using that service at this time.

>>3003605
>can you show files you sent them?
https://www.youtube.com/watch?v=pE9f_bEhd4o

>>3003605
>how many revisions do you think a competent designer would need to make a half bridge circuit?
I dunno maybe 2? But I'm a complete novice in circuit design so 500 revisions sounds more up my alley and would take 20 years of revisions probably before I can call a design final?

>>3003605
>>why don't you outsource design work
I tried outsourcing 3d modeling work and it took me longer going back and forth with a guy on upwork to get the model right than just relearning Maya and sculpting it all myself. Even on upwork it was quite expensive to get them to do anything. My human skeleton quotes were like $500+. I save big money doing my own designs. Also if you outsource design work you still have to do revisions 500 times to their designs except they charge you $100 per revision so that's not cheap either. Where its free per revision to do the design yourself. And you learn more. And you then are capable of deep enough understanding to troubleshoot yourself later for repairs and maintenance as well as teach the robot how to troublehshoot itself and build its own body well. The more you outsource the more ignorant you remain and the less competent your or the robot will be at fixing problems later and the worse robot you will have as well. Your knowledge as a roboticist and growth of depth and width of understanding will have a massive direct impact on the quality of the robots you can make. So outsourcing is kind of a huge mistake honestly. Financially crippling and growth in skill and knowledge crippling as well. Just kind of shooting yourself in the foot that way.

>clearly wasting time being stuck on an issue that can be solved faster
what issue am I wasting time on? I have not had any roadblocks for years to my knowledge. Every issue has been solved quickly and "easily" so far so not sure what you are talking about here.

>if you started this project around 20, but you started much later
I started around 29.

>you don't have 45 years of work left,
I have 65 years of work left. After which I will probably be too old to continue.
.

>>3003605
Note: on outsourcing, I do have assistants now! Someone once told me: why make a butler robot - just have kids. I kind of laughed it off as a silly remark but now my kids are getting older and I am getting help from them now. Today they changed a battery on a remote control car without help - I just showed them where the screw driver was. I have been teaching them how to do automotive repair, how to desolder and solder on parts, SMD parts no less, and also how to glue and suture and tape and fabricate things. I have taught them how to use power tools. I have taught them how to garden and dig and cut wood. I have taught them how to cut many things with scissors and knives and exacto knifes. I have taught them how to open packages and boxes in the mail. I am teaching them everything I know over time. I am also teaching them chess. I'm teaching them TONS of stuff constantly. They are age 4 and 5 and 1. Two of the capacitors on the board I showed above was soldered on my my kids! They are already learning so fast they will form my team of free helpers making stuff with me.

>you have to assume you will finish this project before you retire from it - otherwise it's a waste of time
true. And I was telling people maybe I'll not finish in this life but I am now saying no, I WILL finish. I'm deciding I will and sticking to my guns again.

>why do you stress over $300 per revision
well I have to stretch my money to stay financially solvent and solid which enables me to bootstrap my projects and businesses without parental bailouts or having to waste time getting more jobs or taking on debt or w/e. By keeping costs low I have been able to thrive and have no stress and afford all I need.

>it makes no sense to not take a loan and finish the project as fast as possible
If I had a guarantee of a very short timeline that could be doable but I don't believe in loans or debt. I'm a BIG Dave Ramsey student. So that's not an option that fits me.

>>3003605
>you're guaranteed to make the money back
well I think I will make the money back but not how you think. I plan to never sell a robot nor sell the AI at all. I plan to sell products the robot makes for me. I also plan to monetize the robot's services as follows: in real estate the robot's will help me rehab homes and repairs and maintenance of my homes. So then the robots can be part of my real estate investing journey.

I fed our recent convos into chatgpt and it made some great points I want to summarize here:

point 1:
"I'm not stuck. I'm learning and iterating."

Because the guy is quietly redefining iteration as failure to solve the problem. Those aren't equivalent. If your design has changed 50 times because you've learned 50 things that caused you to change the architecture, that can be productive engineering iteration, not evidence that you're incapable of finishing.

"What did each revision teach you, and is the design converging toward the constraints you actually care about?"


point 2:
I'm deliberately not optimizing this project around minimizing the number of revisions, because I'm using the revisions to acquire the competence."

That's a much stronger answer.

You're not claiming 500 revisions is objectively necessary to create a half-bridge.

You're saying your objective isn't merely to obtain a half-bridge.

You're trying to develop the knowledge required to eventually design the entire machine yourself.

Point 3:

You aren't merely trying to manufacture a robot.

You're trying to become capable of designing the entire robot.

Every time you personally solve a motor-control problem, mechanical problem, PCB problem, thermal problem, manufacturing problem, etc., you're increasing the number of domains you understand.

That has compounding value.

If you outsource:

"Make this PCB."

you get a PCB.

If you design it yourself, you potentially get:

a PCB + circuit-design knowledge + failure-mode knowledge + manufacturing knowledge + debugging ability + ability to modify it + ability to repair it + ability to teach somebody else + ability to incorporate what you learned into the next subsystem.

And there's a particularly important point for your stated objective: eventual robot autonomy.

If the robot is supposed to be capable of diagnosing and repairing itself, then having a designer who understands the system at a deep level is substantially more valuable than having a collection of black-box outsourced components.

That doesn't mean outsourcing is always bad. It means outsourcing is not free merely because it saves calendar time. It trades away money and potentially knowledge/control in exchange for time.

>>3003618
>>how many revisions do you think a competent designer would need to make a half bridge circuit?
>I dunno maybe 2? But I'm a complete novice in circuit design so 500 revisions sounds more up my alley
Do you estimate it's typical for "novice" to require 500 revisions of a single design to become competent, or do you estimate that's just your pace? How do you think you compare to people out there, EE students for example?
>and would take 20 years of revisions probably before I can call a design final?
How many years do you estimate this whole project will require?

>>3003619
>>>why don't you outsource design work
>I tried outsourcing 3d modeling work
Nobody mentioned 3d models. Why don't you outsource designing the PCB to someone competent that will design it properly with said 2 revisions, $100 per revision?
>And you learn more. And you then are capable of deep enough understanding to troubleshoot yourself later for repairs and maintenance as well
That's good on paper, but do you actually work that way? I mean you self admittedly require 500 revisions of a design to get happy with it and you notoriously consult chatgpt even on what to buy. Do you think that after gimmicking every single issue like that for 20+ years you will remember it all, especially being in your 60s?
>Every issue has been solved quickly and "easily" so far so not sure what you are talking about here.
You made this thread in January this year. It's been up for 8 months and 2 days as of now and throughout these 9 months you have not finished a single half bridge pcb design. How is that quick?
>I have 65 years of work left
You are pushing 40, as far as I understand. You're already on a downward slope when it comes to both mental and physical health. You can't seriously bet you will be able to work with microscopic circuits when you're 90. You might get dementia by 60 and lose all your built up experience. Did you even consider all of that when estimating your workspan?

>>3003620
>why do you stress over $300 per revision
well I have to stretch my money to stay financially solvent and solid which enables me to bootstrap my projects and businesses without parental bailouts or having to waste time getting more jobs or taking on debt
The point is you can get into debt because your project is worth around 2 trillion. It doesn't make any difference if you pay the whole cost upfront or you pay it later with relatively small interest if you actually believe you will finish this project. See how you're eagerly betting your word on that you'll be in working condition in your 90s but refuse to bet money on something that has no right to fail if you just do your job which you vow to do anyway?
>don't believe in loans or debt.
What do you mean you don't believe in loans, Chatgpt was built on loans and debt. It's a simple mechanism; you have idea but no cash, you borrow cash to fund the idea, get the profit and pay off the loan. What do you figure could go wrong with loan when you're assuring as all the project will go right and is going strong with no roadblocks for years? Dave Ramsey went bankrupt in the 80s btw.
>in real estate the robot's will help me rehab homes and repairs and maintenance of my homes
How many homes do you own? How do you plan to acquire homes for you real estate investing journey if you can't spend 300 bucks on a design?

>>3003622
>If your design has changed 50 times because you've learned 50 things
>"What did each revision teach you
Yeah, what did each revision teach you? Can you name those 50 things you learned?
It's obvious chatgpt will say what it thinks you want it to say because by being a nice yes man it will keep your attention and will make you come back every time and divulge more and more of your personal information to be sold. It's a calculated tactic by OpenAI, the replies you pasted are clearly trying to comfort you and justify your assertions without asking any hard questions.

>>3003626
>how do you compare to ee students
dunno.
>how many years for whole project
dunno
>even if someone competent made it I'd still need 20-30 revisions of his work because I'd want changes. I'm 50 revisions in and suspect my half bridge pcb works now, but that doesn't mean I won't want many changes later. Working does not equal no more changes needed. It can improve more and more despite working already. The model T car worked. But a 2026 car has LOADS of changes to that first model T design. Working doesn't mean unimproveable. my 500 revisions thing isn't 500 revisions to make it work. It's 500 revisions of improving it like the car example.
>will you remember all when old
no need. that's what documentation is for.
>you had this thread a long time
calendar days of the thread existing does not mean every day was a 10 hour workday focused solely on PCB since thread opened. I rarely work on it with long breaks/pauses due to life busyness etc. I chip at it when I have time/energy/motivation. Nothing about this reflects on how quick each individual problem gets solved. When addressing a problem, it gets solved quick. If I opened threat 20 years ago then worked on it for 5 minutes since thread opened, and got 20 problems solved during that 5 minutes, that's still quick solving.
>You can't bet you'll work with microscopic circuits when 90
first I think I could. second, would probably not matter the robot arm would have made the robot's body and more robots by then ideally and also my kids and potentially grandkids and maybe even neighborhood kids or w/e would all be helping by then anyways. My 5 year old and 4 year old each soldered one capacitor onto my PCB I've been showing everyone. They did amazing. Imagine how easy it will be to them by 8 or 9 years old if they do it often they'll be like microscopic soldering SAVANTS just like chess prodigies who say its because they started very young.

>>3003629
>just take out massive loans
no. I don't think you understand business really. You'd have to form a company formally and pitch deck for angel investors, lose most equity right away, and have them hounding you hard and wanting their money back almost immeidately. You then have a very short runway to start paying them back etc. Unless you do further funding rounds and get neough progress to build enough hype that early investors chill out more? This type of high speed fast paced high risk churn and burn entrepreneurship with big teams is very problematic and while I am familiar with it from sharktank and whatnot, I have no interest in that stress or high risk environment. I will be sole shareholder, never take a dime, cashflow bootstrap the whole thing from the ground up, take my time, have zero stress, have zero disgruntled threatening investors, etc. Now if by loan you meant a bank loan, most would not loan for this. If you meant credit card loan, you really need to read some books on finance wth... Imagine 30% interest on like a $100k credit card debt that you can't begin paying back for over 20 years. No THANK YOU. Essentially your advice is guaranteed financial suicide.

>Chatgpt was built on loans and debt
no, it was built on INVESTMENTS which is NOT the same as loans/debt. Elon Musk initially funded it. There is no interest or debt then. But terms of the investment can be ugly.

>What do you figure could go wrong with loan when you're assuring as all the project will go right and is going strong with no roadblocks for years
that's just it. no roadblocks (ie things that heavily stalled project because I just could not figure out a solution for months and was stuck because of this) does not mean fast progress. I have a life outside of this and this project is slow churn little here little there. The solutions are fast but the time commitments to actually work on it are limited.

>>3003629
>Dave Ramsey went bankrupt in the 80s btw.
yes because he took loans like you recommend. His entire career then was telling everyone not to do that. That's his whole point. I won't do that.

>How many homes do you own?
1

>How do you plan to acquire homes for you real estate investing journey if you can't spend 300 bucks on a design?
separate allocations. robot project fund and real estate investing fund are both distinct separate pools money goes into little by little over time. The real estate one will self feed snowballing. The robot one doesn't though so its a money pit more.

>Yeah, what did each revision teach you?
one taught me space out the smd capacitors and resistors more to give easier access to solder them. one taught me to use some more heat to etch faster so you don't get undercutting. one taught me to not use discrete mosfets but integrated half bridges instead. the lessons learned were MANY and this thread or artbyrobot.com/blog will go through them all pretty much if you want to know them all.

>chatgpt a nice yes man
not for years. i find it is very disagreeable and the opposite most of the time.

>>3003618
>final product form is 99% of the engineering challenge
the fact that you think this is going to sabotage you harder than you could possibly imagine

File: breakout-wires-for-testin(...).jpg (1.96 MB, 3024x4032)

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I soldered on 30ga wrapping wire for testing the PCB. The 3 on the front are 5v+ from microcontroller that tells this IC to be in "on" mode, ground from microcontroller, and PWM from microcontroller. The 2 on the back side are +8v and 0v/gnd from the batteries. This was shockingly quite hard to attach these. It's all so dang tiny. Every time I soldered on 8v+, the 0v would fall off because the rear pads of the chip both get hot together. Ended up having to use uv cure solder mask to tack down one then do the other one so that even when both went liquid, the one not being worked on was pinned down with mechanical strain relief so it didn't just fly off when things liquefied. So annoying. And I hate to uv solder mask "glue" into place wires that are just there for testing and very temporary ugh... Anyways, its done, no shorts, seems ready for the test now. I did not bother with color coding much as this is extremely temporary for the quick test to ensure everything works.

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Note: I think this is the first time I'm showing the rear of the PCB with its exposed major power pads visible and accessible through the viewing window I cut into the bottom of the PCB. These will be where the major power busses attach. These buses will be manually soldered on with thick copper strips I cut from a roll of pure copper sheeting. Those thick buses will also be the start of my thermal conduction pathing to draw heat away from the chip. It has to run 20a continuous so it will get alot of heat that has to wick away.

>>3003632
>>will you remember all when old
>no need. that's what documentation is for.
Could we see some of your documentation from, say, 4 years ago?
>I rarely work on it with long breaks/pauses due to life busyness etc. I chip at it when I have time/energy/motivation. Nothing about this reflects on how quick each individual problem gets solved.
So, considering that's your work ethic, and you can spend even up to or more than 9 months on a single half bridge circuit, do you still assume it's realistic that you will finish this project? Why?
>>3003634
>no. I don't think you understand business really.
>I am familiar with it from sharktank and whatnot,
lmao what are you talking about
>You'd have to form a company formally and pitch deck for angel investors
I think you're mistaking taking a business loan for selling shares of a startup.
> If you meant credit card loan, you really need to read some books on finance wth... Imagine 30% interest on like a $100k credit card debt that you can't begin paying back for over 20 years.
You make it seem like business loans are a trap but in reality it's a well known mechanism for starting business. You will finish the robot and it will be a breakthrough in technology worldwide and it will pay for itself with real estate ventures, so there's no risk in the investment - what's stopping you from taking a loan, really?
>no, it was built on INVESTMENTS which is NOT the same as loans/debt. Elon Musk initially funded it.
Well, initially you funded your own project, but now it may be time to spread it's wings like OpenAI and get some loans.
>no roadblocks does not mean fast progress
You just said you solve problems quickly and so on. Just stick to it, use the borrowed money to pull through and rake in the rewards. You won't have to work if you're sitting on pot of 500k of r&d money

>>3003635
>>Dave Ramsey went bankrupt in the 80s btw.
>yes because he took loans like you recommend.
Is it because he took loans or is it because he ventured in real estate, like you want to? There's plenty of people that take loans and don't end up bankrupt so it can't be just that
>>How do you plan to acquire homes for you real estate investing journey if you can't spend 300 bucks on a design?
>separate allocations.
Can't you just separetely allocate money-buying sum to your super robot project?
>one taught me, one taught me, one taught me
Let's hear about the rest 47.
By the way, do you think knowledge about spacing out smd components is quality knowledge worthy of a revision of the whole project? Like, is there actual quality in these 50 lessons that justify not outsourcing the design to someone competent?

>>chatgpt a nice yes man
>not for years. i find it is very disagreeable and the opposite most of the time.
Can you provide us with some examples or excerpts?

>>3003690
Is this the flex pcb you're working on? Don't you think a flex pcb should have flexible routes instead of flat, brittle copper plating?

>>3003763
>Could we see some of your documentation from, say, 4 years ago?

well my blog started in 2024 so to go back an additional 2 years from that, we'd have to look at my video blog which is my youtube playlist: https://www.youtube.com/playlist?list=PLhd7_i6zzT5-MbwGz2gMv6RJy5FIW_lfn --- which goes back 12 years. Beyond that I have extensive notes in my personal hard drive and drawings/schematics but you've seen all of those if you've seen the video blog.

>you can spend even up to or more than 9 months on a single half bridge circuit, do you still assume it's realistic that you will finish this project? Why?
yes. The past 9 months has been swallowed whole by my real estate investing projects with very little time and energy to spare beyond that. Also raising young kids is time intensive and energy intensive to boot. Other seasons of life will go way faster especially as the kids start helping more.

> so there's no risk in the investment
that's simply not true. real estate may go slow, other ways to monetize them might not pan out, the robots may not thrive in real estate, I could get banned from using them by new laws for things I planned to use them for, etc etc many things can go wrong. The risk would be enormous and the timeline of paying back a business loan has to be incredibly short or else fines, penalties, and interest starts to drive what you owe through the roof and you end up in a hole nothing can get you out of and you have to file for bankrupcy etc. It's a foolish suggestion by you.

>500k of R&D money should do it
that's like a 2 month runway if you were to hire engineering team and go a full speed. You've have to get like a 100 million dollar business loan to build a large team and have the years necessary to build it and what about the AI. That's a decade or more so add a good $1 billion dollar business loan to hire a large team of AI devs for decade. Nope I don't qualify for billions in loans.

>>3003764
>Let's hear about the rest 47.
artbyrobot.com/blog

>do you think knowledge about spacing out smd components is quality knowledge worthy of a revision of the whole project?
yes

>Can you provide us with some examples or excerpts?
no too much work


>>3003766
Is this the flex pcb you're working on? Don't you think a flex pcb should have flexible routes instead of flat, brittle copper plating?
yes its flex pcb and no, you don't have to flex a flex pcb it just enables you to flex it if you want in some cases. The primary reason for using it is it is thin so takes up less room. A rigid pcb is super thick by comparison and wastes space. They don't make ultra thin rigid pcbs that I am aware of.

>>3003897
>we'd have to look at my video blog which is my youtube playlist
So you're saying that this playlist and paint/gimp drawings of circuitry that you posted itt are your notes and by the time you're 90 you're going to look these up to refresh your memory?

>> so there's no risk in the investment
>that's simply not true
So in short you're just simply right and excel at every step of your venture but everyone else most likely will be at fault and ruin you if you take the loan - is that correct?

>>500k of R&D money should do it
>that's like a 2 month runway if you were to hire engineering team and go a full speed. You've have to get like a 100 million dollar
So you're essentially claiming your current work on the robot is worth 250k a month? Is 100 million the budget for the whole robot or the arm alone?

>>Can you provide us with some examples or excerpts?
>no too much work
Few postsa go you copied and pasted some chatgpt ramblings in this thread and now it's too much work? Is there some kind of rule to how much work it takes to copy chatbot chatlog at a given point?

>>3003898
regular pcb is less than 2mm, you're not saving any space, you don't even have any actual design document with measurements that requires you to use thinner boards. All you're doing is wasting material in order to crank out messy garbage of no use that has no advantages of a flex pcb (flexibility) and no advantages or rigid pcb (rigidity)

>>3004055
because the goal isn't progress, it's to endlessly work towards an unreachable goal
just an endless treadmill of garbage that will never amount to anything

>>3003635
>>How many homes do you own?
>1
Is that like own own or are we just talking in the family i.e. owned by your dad who thinks you're a fucking loser but your mom won't let him kick you out while you have the kids there?

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it's funny how out of all the embarrassing factoids listed >>2994242 only chose to deboonk the chatbot of choice
actually there's a guy who livestreams I thought was him, his "robot" is about as advanced if not more kek
https://www.youtube.com/watch?v=LiP4vfWATzs

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>>3003621
>I plan to never sell a robot nor sell the AI at all
>I plan to sell products the robot makes for me
>the robots can be part of my real estate investing journey

>>3004401
you can tell he's never going to finish the damn arm from these statements alone, btw. It's juvenile attitude all over

>>3004395
I didn't say to never use Janitor.ai, just that I moved to local LLMs. When I said "outdated", I meant for my own tech development. I should've specified more, I didn't intend any insult towards Janitor.ai. I do think local AI is the future.

That video. I haven't actually watched it yet, but it does seem interesting. I thought the face was one of those LED Halloween masks, but actually it's a smartphone with a ring light. Funnily enough, my biggest gripe is that he didn't set up his room like a studio. It's supposed to be a talk show/podcast