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Welcome to /diy/, a place to:

Post and discuss /diy/ projects, ask questions regarding /diy/ topics and exchange ideas and techniques.

Please keep in mind:
- This is a SFW board. No fleshlights or other sex toys.
- No weapons. That goes to /k/ - Weapons. The workmanship and techniques involved in creating objects which could be used as weapons or the portion of a weapons project that involves them (e.g., forging steel for a blade, machining for gunsmithing, what epoxy can I use to fix my bow) may be discussed in /diy/, but discussing weapon-specific techniques/designs or the actual use of weapons is disallowed. Things such as fixed blade knives or axes are considered tools, things such as swords, guns or explosives are considered weapons.
- No drugs or drug paraphernalia (See Global Rule 1). If you want to discuss something that could involve such things (e.g., carving a tobacco pipe from wood) that's fine, but make sure it's /diy/ related and doesn't involve drugs or it will result in deletion/ban.

Helpful links:
Some friendly suggestions for posting:
- First ask Google, then ask /diy/. Your question will probably be better received if you do so.
- List available resources (tools, materials, budget, time, etc.)
- Try to use pictures and explain the goal, if possible
- Be patient, this is a slow board; your thread will be around for days.
- Share your results! /diy/ loves to see problems solved and projects completed!

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I am thinking about a way to make a small amount of side cash and get some shit out of the landfill in the process, so I am thinking about maybe recycling latex paint. How much would you pay for recycled latex paint when your only option for colors would be very general and broad, such as blue-ish, white-ish, etc.?
nice idea but to be honest, i'd think "fuck this shit, spend five more bucks and get a fresh can of paint."

The thing is, everything what isn't a everyday product needs to be perfect. If i needed a bucket o'paint everyday, i guess i would visit you. But because i just use it once a decade i buy good stuff from the market.

hi /diy/,

I recently used a raspberry pi v2 in my computer architecture course(because MASM doesn't really let you get that low level anymore), and now i'm wondering what I should do with it, now that the course is over.

Does /diy/ have any project recommendations? What should I do with it?

Also, share your projects if you have any.
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They make a great retro gaming emulator for the Pi called "RetroPi". The Pi can play up to 5th gen console's (N64). You just have to download all the games offline and put them onto the Micro SD or better yet a external. They have the RetroPi download on the raspberry pi website.
And for your steaming my friend there is OpenELEC. Which runs KODI, a OS for streaming all media. look up the OS. the download for that is on the raspberry pi website as well under OpenELEC... But why are you on here? Just google Pi projects and most the cool standard ones the OS downloads are on the raspberry pi website itself.
Goddamn, if I could do it all over again. I would orient my life so that I could fuck as many bitches like that as possible. Sheeeeeeit....
Would you recommend learning ARM assembly with a Raspberry Pi? What kinds of things can you do with assembly that you can't do in C?

In case anyone is following, you can mount a .pnd file on the Pi and apparently some do work but I tried this finally last night and it didn't work to run Starcraft. I will probably try a few other things though later.

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Is it worth stripping motherboards, circuit boards, HDDs, PSUs etc for precious metals?

Can you make little pocket money and learn a little about metals and electronic parts on the process.

I'm in the UK but I don't know whether the gold, magnets, aluminium are going to worth the time invested.
No, not really, especially if you're dealing with stuff 1990 and newer. The gold is minimal and takes too much work and time to be worth it.

If you happen to come across some boards though, tantalum caps can go for a pretty penny, as do transformers and electromagnets (lots of copper and magnets are cool). Variable caps are nice to have around too.
Heat sinks are a good source of aluminium too, They go for about 80 cents a pound.
So I should look out for those old big power blocks from the old computers like Sinclair, Commodore and Amstrad used to make?

A friend of mine runs a computer store and harvests all this stuff, after a year of collecting he told me the pay off was so low he no longer accepts e-scrap.

Because gas is so cheap they do the processing in china now so the price has plummeted as they ship tons of it overseas.

So really the only benefit would be collecting metals for your own hobby projects

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I want this /diy/. I want this more than any other non-electric physical object in my life.

Who should I talk to to have this made? It shouldn't be more than 5000 USD, right?
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Cute, tho probably not comfortable.

See a cabinetmaker and for fucks sake design it in modules that can fit through a common doorway EASILY so you don't beat the shit out of it when moving. Make the cushions easily removable and make them with removable covers for cleaning.
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>some asshole broke into my house
>left everything, just stole my couch for some reason
>had to buy a new couch
>whoever it is breaks in again
>stole my new couch
>decide to fuck with him
>build my own couch
>it looks like a spaceship out of star wars but with seating on top
>built that fucker out of over 5 cubic meters of black walnut
>7000 pounds of fuckin wood in my living room
>this bitch weighs more than my f250
>never found out if he broke in again because my basement collapsed

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>solid hardwood
take a look at the picture anon. the paneling is clearly only about 3mm thick.

that and it's clearly been very shittily stained. pine clouds like that.
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But Norm Abram isn't one of them, and I'll take his opinion over yours.
Again the similarities between furniture wonks and audiophiles reveal themselves.

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Old thread >>909451

>open source community

>buyfag buyers guide
Any number of Reprap kits out there

>basic 3d printing FAQs
https://opendesignengine.net/projects/vg3dp/wiki (lots of useful stuff)

>what kind of filament do I want

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For a filament extruder? There is no printing surface. It just spurts out 1.75mm filament. It might take some tuning and a couple of drilled pennies, but it should be stable.
That actually looks like a decent idea, if the hole is cleaned up a bit.

What did you use for the brass fittings? Looks like a male and female threaded coupler, and I assume you stuck the penny inside the female and then screwed on the male; however, it seems to me that the female coupler is very short (next to no "lip" on the inside) - is this normal? Or did you get something special?
Welp, i have learned the importance of a minimum layer time in 3d printing.

my current project fucked up at the end because of how fast the printer was going through layers.
Its not unuseable, just unsightly.
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Anyone here using Simplify3D. Hove does it compare to cura. I see it has a couple of nice features like adding custom support. But as far as end product is quality noticeable different?

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What are some cheaper PLC's that can handle higher direct output amps then this CLICK PLC? Pic related can handle .3 amps but the electromagnet I have in mind will run .33 amps. Would this work, or would I destroy the PLC? 24VDC.
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I think that it's more than just me who is/will be grateful for your advice, thanks!
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>"Mr. PLC, king of the /diy/ logic controllers."
Maybe here on 4chan.

My background: 29 years old with a BS in Mechanical Engineering Techonolgy, 5 years experience programming AB and Opto22 along with GE iFIX Proficy HMI. Programming PLCs, doing electrical panel design, wiring, sensors, troubleshooting, just about everything. Arduino experience dating back to 2008.

I've done a lot of hands-on electrical panel rebuilds and in-field startups/service. Including trips to Germany and Sweden. Nothing like staying up all night in a timezone 6 hours ahead to fix a problem because you plane leaves the next day.

I also know enough SQL, VB.net, Python, and AutoIt to be dangerous. Really comes in handy.

I'm not an expert in anything except learning exactly enough about something to make it look like I know what I'm doing.

I relocated to Denver back in the summer, so I'm currently looking for work. In the meantime I'm doing some PLC stuff with a customer and Arduino projects a few local guys


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How's the EE/BME market in Colorado? I'm getting my engineering degree in a couple of years and planning on relocating there because of personal reasons.
would you recommend arduino for someone wanting to control relays/pumps/motors via network interface or find something else? arduino looks easy as shit. i have programming experience/knowledge...

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Do you know much about knots?

Can you tie knots that you are sure won't slip and fail you?
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i think its very relevant >>>/hc/866707
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>implying you need to tie shit down

>tfw those two guys have to unload the truck by hand several times a day.
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I am just using the Stein/8-knot for climbing and find it realtiv simple and easy to handle.
only knotting I know involves dogs
The only post that I understood in this thread. Weird.

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what do you do for a living /diy/?

I repair wooden rollercoasters

pic related
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X-ray tech or lab monkey?
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10 Years as a stucco plasterer, most of it just restauration of historical buildings, churches and castles. 2 Years trying to work with my father, didn´t work.

Then change to technical drawing, i´m now 7 Years working in. It´s a small fire protection firm, nearly 40 ppl for sprinkler systems. I´m the guy for everything, buying most of our items in the storage area, repairing tools from our workers and plan the systems.

I must say i realy miss my old job, but fuck my father.
are all those holes from someone shooting into the roof?
The owner before didn´t want to pay the restauration of the celling, so they installed a celling under the old one. These were the holes from the hangers for the new celling.
Lab monkey. I work mainly microbiology 1st shift

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Hey /diy/ do you know anything about old airconditioners?

My grandmother lives in an old wooden house and she wanted to use the old aircon in her study since it's summer here. I tested it and it seems to run fine, the only issue is that outside the previous tenants attached a hose for the water to drip out through. However no water comes out after 5+ hours of running, so I'm confused if something is wrong. Grandma says it means the water must be leaking inside the machine and into her walls but I can't find any sign of dampness or water under the house while check out the outside. I found a model number but there's nothing about it on google.

Should I be worried? I've attached a picture of the machine.
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What the fuck are you talking about?

AC units are fairly simple

You have a sealed copper system that circulates and is pumped by the compressor motor, There should be two fans normally, and two sets of coils, one is the evaporator the other is a condenser.

As the refrigerant is pumped through the system, it goes through mechanical filters on the copper line that I don't know how they work exactly but the basics are simple, the refrigerant is pumped it will cool/freeze the evaporator coils and the fan behind it will blow air through them, cooling said air and blowing inside your house. at the same time it will pick up heat from the air in the room where those coils are and transfer that heat to the condenser coils where a fan should blow that hot air outwards on the other side of the AC.

Heat pumps work much the same way, except there is a switch that will reverse the flow of the refrigerant by making the compressor pump in reverse.

Water is condensation, you'll get condensation when the evaporator coils are exposed to warmer air than they can keep up with its like leaving your refrigerator door open you'll have a puddle of water in your fridge.

Make sure there are no "air leaks" of hot air around your AC, that would be the most logical cause of so much condensation it requires you to install a fucking hose, if that doesn't work and you're well sealled, then you need a better AC that can keep up with the dessert climate you live in.
if you want to be pedantic about it the compressor doesn't pump in reverse, the refrigerant is directed through the system in reverse order via the reversing valve.. the compressor can't pump in reverse..

thanks, i am not a trained hvac tech but i worked in pull units that went in fridges never pierced copper lines just changing starter components, my understanding is more practical than theory,
The filters on the copper line as you say are the easiest part anon.
Gas laws tell us that pressure is proportional to temperature.
If you squeeze something it gets hotter basically.
So ask that happens is the compressor pump increases the pressure of the refrigerant to heat it up.
There is just a very simple restriction in the pipe that allows the pressure to build. Once the refrigerant has passed the restriction there is no pressure so it cools down again. Just think of a garden hose, the water is under pressure in the hose but once it passes the nozzle and is out in the world it isn't under any pressure.
It's all very simple really.
Just grab the hose and blow into it.

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I'm looking for a drone to make skating montages for YouTube, it has to have a decent/upgradable camera and I would prefer it had some sort of gps rout autopilot/follow mode.
Budget: 1.500$ if possible I'd like to have 300-400 left for a new board.
So what you're asking for is something around $100 to $200?
This had better be bait...
Unless that is supposed to be $1500 instead of $500. In that case you can't go wrong with a DJI phantom 2. Usually go for around $800 aud, and you can use it with a gopro or something similar
My bad I'm looking for something between 1100$ and 1500$

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Hey guys. I'd like to hear your thoughts on angle grinders. It's about time for an upgrade and I'd like to buy the absolute best.
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Metabo. Then Bosch. Then Dewalt.
Buy literally the cheapest one you can find. You can get several for the price of a good one, and replace as necessary. Keep a spare handy if you feel the need.

Good ones spontaneously stop working too...

Blue Bosch, at that.
Green is consumer grade and tends to be hit and miss, blue will last a life time.
soft start is nice on a 9" grinder. buy the prettiest one, that's how little the brand matters.

grinders mostly die from abuse. if you clean it out with the airline after a dusty cut, grease the gearbox when it starts to skirl and don't lean into a cut until the brush holders melt you'll be using it for decades.

If you're budget is $100 buy two $50 ones.

Not for spares but so you don't have to dick around retooling them forever.

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Woodwork General:
>Post your QT tools edition

Post what you've been making and what you've been making it with anons!
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Some saw sharpening places are able to buy in good HSS and tool steeel, might be worth asking them.

If you want to joint boards together to make a tabletop, you're best off running them thru a jointer or using a shooting board and a plane to get them flat and square.
Reinforce them with dowels for extra strength like pic related.

great , thanks for the quick input
If you need a perfectly flat surface for the top you could still use plywood. Most big box stores even have oak, birch, and occasionally maple plywood. You could use the rough lumber for the frame and edge banding still. But like the other anon said, you want glue surfaces flat. I would still use dowels or biscuits anyways though, just to try to control movement a little bit. There's a trick when you're gluing 2 flat board together with no joint. To keep them from shifting during glue up you can put brad or finish nails most of the way in, then clip off the top leaving a small spike. Then press the drywood together how you want it, leaving an indentation on the other piece of wood. This helps locate it and keep it from slipping during glue up.
Can we distinguish between CNC and woodwork?

Putting a piece of wood under a CNC cutter isn't woodwork. It requires little skill at all.

Take your autism somewhere else please.

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Found this site just now. Seems cool because I don't have a laser cutter or the money to buy one either. Has anyone tried the service? I'm a European so will that make ordering more difficult/costy?
Any ideas what kind of cool shit to do? I'm a wizard with vector design programs but don't have any ideas.

I registered and didn't do anything so they started bombing me with automated e-mails and eventually offered my first design under $20 for free so that's pretty cool I guess.

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> no current projects thread

finally got around fiinishing my book turned key hanger.
I used gelatine for glueing together the pages. I used twice the concentration as suggested for food applications and that shit’s now hard as a rock. Pre-drilling the holes for the hooks worked perfectly (during the drilling I clamped the pages together for good measure, though).
I used Tesa ® Power ® Strips™ to attach it to the wall.
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thanks, I actually made two minor adjustments: I had to glue the middle part to the back cover, because otherwise all the keys rattled as soon as I touched the whole contraption;
and I had to reattach the key hanger to the wall such that it now partly rests on the light switch housing (because I have a textured wallpaper and the Tesa power strips don’t work very well on these).
I’m an idiot.
Meant to quote this post:
That piece of tape sticking out is pissing me off.
post pics, always love seening stuff from different places in the world
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a tank build completely from scratch, like old VCR stuff, all metal, and the blue tracks are 3D printed

has servo motors and stepper motors for precise moving

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