What causes this and how do I clean it? It's all inside my wireless mouse and a fresh battery didn't work.
I went to pick wild lithium and found this inch sized shroom growing on it, and I said to myself how common is this thing?
I still have a sample by the way looks like a lithium clam
>>2864039I found the threadI knew they were alive
>>2864044> potassium carbonateIs that stuff useful for anything, should i collect it from dead batteries or something? Or maybe useful for electrolysis or plating projects?
>>2866589I'm sure if you needed some you could find it and not have to extract it from bad batteries.
>>2830320 last threadSup homies, general rule of thumb with this thread:1. we try not to be assholes.2. Please use google first.3. If you find something useful, post it.4. ???5. Profit
Where do you guys get your materials from? What do you guys recommend for durability or waterproof capability? Is 600D pvc overkill or is there something with similar quality that is good enough? Or something that can fall off a moving truck and not rip? Is there certain thread that can hold together much better or is it all in the way it was stitched and amount of passes or technique?
>>2864231that's not diy of you
>>2866343fair point anon BUT it's honestly not worth fixing, once its fucked over there's really nothing you can do about it. My chair is doing that shit where the pleather is peeling off finally. The chair itself is fine, the fabric is shit. This is why I sit on a pillow.
>>2865746look for cast metal class 15 sewing machines made in japan 1960-1980 singer, kenmore, any brand really. they are the only good affordable sewing machines and are made to last forever.
>>2865747COMPUTERS
How do you improve it on a tight budget?
>>2865349Call VPS they will do your whole house and you pay weekly as you rent-to-own.
>>2865349Spread a rumor that you have a serious meth habit, paranoia and access to a lot of firearms. Problem solved.
>>2865349these things are for blocking sun... right?
>>2865349Get a dog.
>>2865554in half the world that prompts visits by the swat team.
My house has mountains and my work has paid for cellular internet but will not pay for star link. But cellular does not work at my house because of mountain, so I have the cellular modem on top of the mountain where it gets a signal and I use some cheap wifi link to transmit wifi to the houseI have 150w of solar panel there I got for free and for the long time I was using car batteries. I just impulse bought a lithium 100ah battery, but I am finding that it does not work below 0°c??How the fuck do I keep this stupid battery warm? Half of the year it goes below 0c every night. Is it only a problem when it charges
>>2865783> Top/HautThis seems like technology available only in canada
>>2866107You can buy battery warmers just about anywhere. That's just an example.
LiFePO4 batteries will not take a charge under 0C. Your BMS may or may not reject the charging current when it is too cold. Cheaper ones don't have a low-temp cutout. The battery can be discharged in temperatures above -20C, so you don't need to worry about losing power. You can spend some of your battery's charge to warm the batteries up. It's just important that you don't let them go flat if you have no alternative way to heat them. I would get those heating pads for the battery and have them on a thermostat controlled relay to keep them around 5c.You should be using a solar charge controller. LiFePO4 batteries take different voltages then Lead Acid. Your charge controller needs to do bulk/absorption up to 14.6V and float at 13.6V. I recommend setting re-bulk voltage at 13.4V. Do not let your charge controller equalize the battery. Some solar charge controllers can automatically stop trying to charge the battery if the ambient air is below a threshold.
>>2865756>My house has mountains Well there’s your problem right there. I’d recommend moving to a house from a more recent geologic era.
Just get the starlink bro. It's like $120/month at most. Put in 1 extra hour of work per week and the cost is completely offset. Then you won't have to deal with any of this bullshit.
It's a one question plus one bonus question here, boys. Read the TL;DR for the lowdown and the full first question for all the deets. Thanks.1. I play the classical flute. Of the many tricks and tips flutists of yesteryear have passed onto my generation, one is to take a bit of medical tape about the length of the lip plate and stick it on just underneath the embouchure hole/tone hole to produce better grip and prevent sliding from sweat or general nervousness.However, given picrel, it's quite obvious even after a few years and not even one full roll of tape that the flute is no longer clean and the lip plate is covered in a gross adhesive residue which hinders playing, both with and without the application of medical tape on top of the spot.How do I remove this adhesive residue from the metal without damaging the metal? This is 14k gold btw.I once had a similar situation with a piccolo. I was suspected of potentially spreading covid onto the school's piccolo. So, the master piccolo player lady or whatever said we needed to clean it with alcohol and apply a protective sheath of almond oil on the cleaned spot. Is it possible to do something like this but with metal/gold?Bonus: When I read an advertisement, higher watts on an electric appliance means better strength, right? Namely, for vacuum cleaners?
>>2865611Right. Also screenshotted that. Seems like that wraps thing up. You guys are pretty sharp, huh? In any case, guess I'll jog on now. Later.
>>2865623>screenshotGod damn you sound annoying. Get some goo gone and shut the fuck up. You're not gonna fuck up gold.
>>2865594>the school's piccoloLike they have only ONE and share it?Gross.
Dust some flour and rub off
Just put it in the dishwasher.
Would there be any reason why I couldn't just use Gym mat to make custom insulation trim for doors? Seems cheaper too, especially if I can just buy it at Ross or something or get an old one.
Do you mean using it around the gaps like a weather-strip?Could work, but cutting long strips evenly won't be easy.On the other hand if your door's gap size varies it might be better for getting it well fitted vs a conventional weatherstrip.You will need also a compatible glue or double-sided tape to attach it.
>>2865511I got some weather adhesive. It's probably overkill for the application.
Arent gym mats expensive?
The amount of time you're going to put in to cutting up the gym mats and applying the adhesive doesn't make any sense when compared to how incredibly cheap adhesive-backed foam weatherstripping is.
I hate every designer in the planet.
>>2844658it takes quite literally 3 minutes to change out a faucet
>>2854586it is quite literally the law
>>2864338>>2866450https://www.nytimes.com/roomfordebate/2015/04/16/what-are-corporations-obligations-to-shareholders/corporations-dont-have-to-maximize-profits#:~:text=There%20is%20a%20common%20belief%20that%20corporate%20directors,harming%20employees.%20But%20this%20belief%20is%20utterly%20false.https://skeptics.stackexchange.com/questions/8146/are-u-s-companies-legally-obligated-to-maximize-profits-for-shareholders
>>2844678It does hav a screen on supply lines though. Absolutely sucks that you have disconnect the faucet and open the valve to purge crap causing to flow like shit.
>>2866523huh OP here and didn't know that, I may take a look to see what the state of that thing is. Somehow hot water from this faucet is MUCH more turbid than any other, to the point of being disgusting, no idea why.
I'm tired of engines waking me upWhat's the best Sleep Coffin I can build for cheap?
>>2866411>how muchI’d say 1-2 thousand standard sheets. >air barrierLmao, go stand next to a truck and see how much of a barrier that air provides.
>>2866421Acoustic foam reduces echoes to make sound recording clearer. It provides roughly as much sound reduction as a wet fart.
>>2866468>>2866471So... rockwool?Do we have mathematic blueprints?
>>2866474Getting closer, just drop the wool.
>>2866518I'm gonna WOOOOOL all over the walls 100dB nawg
Thread arc-flashed: >>2855842>I'm new to electronics. Where to get started?It is an art/science of applying principles to requirements.Find problem, learn principles, design and verify solution, build, test, post results, repeat.Read the datasheet.>OP source:https://github.com/74HC14/ohmOPbake at page 10, post in old thread>Comprehensive list of electronics resources:https://github.com/kitspace/awesome-electronics>Project ideas:Comment too long. Click here to view the full text.
>>2866706>bit orderIt's not the order. The LSB is the R/W bit. It's a question of convention whether the address should include the lower bit (0x78), or only the 7 upper bits (0x3C). You could argue for either.
>>2866708I am using hardware i2c on pico.
>>2866686>"This effect usually achieves this sound with a transfer function that looks sort of like this" or whateverLOLGuitar shit is for meatbrains, forget you ever learned the term "transfer function" and start gluing shit together.Roughly speaking, fuzz/overdrive/distortion are all the same (diode/tranny saturation), and chorus/delay/echo/reverb/flanger are all variants of delay (look up the Haas effect - there's a fundamental difference between sub-25ms and >25ms delays), often with an op-amp based triangle wave LFO build in. If you really want to delve into complex nerd shit, look up how a crybaby wah pedal works. Genuine masterpiece in analog design, and requires a bit of electromechanical knowhow to pull off. Octave doublers and halvers are also pretty cool.
>>2866694Also speaking of these SH1107 displays, they all seem to have their own flavor of how memory is mapped to display. Different type/resolution of displays often requires different addresses or other constants
>>2866678Technically, shorter wires are better. Especially for very short high-current pulses. In practice though I’m not sure how much of an impact it will make.>>2866686All I can recommend is the YouTube channels Moritz Klein and Lantertronics. Sound-au.com might have some stuff too. Moritz just did a video on BBD ICs, which are used to make delay, chorus, phaser, and flanger effects IIRC.Generally there are a few main categories of guitar effect:>harmonic distortion by clipping or similar such as fuzz, overdrive, octave>VCA-based, like a tremolo, sustain, or compressor>filter-based, like a wah>delay-based, like the chorus and such I referred to aboveI’m probably forgetting something.There’s also a lot to learn from the modular synth world, with VCAs, VCOs, VCFs, side-chains, using the envelope of a signal for feedback, that sort of thing.Comment too long. Click here to view the full text.
What does /diy/ think of granite?
>>2865791I wish I had that type of relationship with asbestos
>>2865770It rocks.
>>2865770Blue Pearl. mmmmm.
>>2865770Its gneiss.
Sometimes I find it hard to appreciate.
Any ideas how I can safely and aesthetically diy diffuse this lightbulb?Also post lampsI love lamps
Using frosted glass spray paint on the inside will work (I've done it) but it may kill some of the contrast between the tinted and clear areas.
Did anyone grow up or get their start in electronics with these type of kits? Are they worth it as a beginners learning tool and? And are there any electronics books that would pair along great with something like this that teach electrical stuff with a beginners point of view?
>>2862563For me, it's Justine Haupthttps://youtu.be/zX7TdufZlTA?si=JwdZF9sTGwY4Uoyi
>>2859425Dad got my bro one of those even though I was the one pulling shit apart and fixing junk, while my bro was a book nerd.He wouldn't let me use it because it was his.
Damn i had no idea fran was a trans lolShe reminds me so much of my old art teacher whi im pretty aure is actually femaleNgl im a little bummed out but shes still cool
>>2859425snap circuitsarduinolego technic for connecting electronics to building blocks
Steam has a few simulations. I imagine it's cheaper to learn.
Friends, I bought I house and I need to apply a new paint on some drywalls. I’m wondering if sanding the previous paint is “mandatory”or is it possible to get a clean result if I keep the previous paint beneath the new one please? All the professional websites say that it’s mandatory but all my friends tend to say that it’s not. What’s your experience with this /diy/ ?Also, what kind of sander would you recommend please? Is a manual sander enough or is a big electric one necessary? I understand that sanding would be only to create imperfections on the wall for the paint to stick, not to fully remove the previous paint so I understand that only superficial sanding is necessary but I’m uncertain my understanding is correct.Thanks
>>2866500I would say a good sanding smooths out some of the uneven texture and then a high quality primer applied 1-2 coats will take care of any bleed-through. There are even special primers that mimic a level 5 finish to some extent (that's smooth skim-coated drywall). Your primer choice is key in painting over existing paint on drywall. It's very likely that after sanding and inspection under strong lighting, you'll see many imperfections that you'd want to patch up or skim coat over though, so get ready to do some serious drywall finishing.
I know absolutely nothing about welding. Can I use this to weld replacement footings for a rusted our wrought iron fence railing? Which type of weld works best for iron repair? Doesn't have to be anything fancy just a solid repair.https://a.co/d/5HeueIl
>>2865424>Can I use this to weld replacement footings for a rusted our wrought iron fence railing?No. Well, not exactly, but it won't be easy. Iron is a pain to weld, and the welds are pretty weak. That's part of why iron has been mostly replaced by steel nowadays.But then again, iron wouldn't "rust out", so chances are you're talking about steel anyways.>Which type of weld works best for iron repair?Stick. Just set the voltage accordingto the stick you're using, hook it up and start.MIG / MAG is a pain to set up, especially on cheaper welders. To much power and it'll burn holes, too little and it won't hold properly. Wire too fast, and it'll punch holes, too little and it won't form a clean weld. Any dirt on the material, and it'll form massive beads of molten steel at the tip of the pistol, which won't connect with the piece until all the dirt has burned off, and will destroy the nozzle if you get the distance even slightly wrong. Also, gas is expensive. Only benefit is that it can weld thin sheet metal, which stick welding can't.WIG / TIG is even worse. Doesn't destroy the nozzles, but you need to be careful so the electrode doesn't touch the molten steel, or you have to regrind it, and keeping up a steady supply of wire with your left hand is hard too learn.Acetylen is pretty nice, and a better alternative too stick welding, but way harder to learn.
>>2865462Odds are OP isn't really dealing with wrought iron as that's nearly out of production since long ago.>> Acetylen is pretty nice, and a better alternative too stick welding, but way harder to learn.Better for what SPECIFIC use case? Not structural or pipe welding. I fucking love gas welding but it's not optimal for everything.Were that actually the general case OA welding would not have been superseded. The path of wisdom is own a torch outfit whatever you do (mechanics especially benefit after they practice washing off stuck nuts etc) plus a small MIG (which can of course run FCAW too so no rush to score oxy and acetylene cylinders which I always buy used).Gas welding, brazing, soldering, torch bending, torch cutting, gouging and more only require a bit of practice (as in hours, not minutes but that's all welding too). Moderns seem to fear torches but not so long ago they were standard in most auto shops and many home gamers have OA sets (which I grab for couch money at their estate sales).
>>2865424wrought iron is the purest iron, easiest to weld, normally for cosmetic welds you can go with 6013 rod, tolerant of rust and fairly easy to use, not the strongest there is
>>2865424Cheap MIG gasless welder should work fine anon. Check FB marketplace see if anyone is selling it for cheaper. If you're just looking to do a quick job without caring about learning to weld just do multiple tack weld the joint all the way around. I wouldnt fuck around with anything that requires gas too much of a headache for a small job.Watch a youtube tutorial about it and you should be set
>>2866232Based. Thank you anon.
Angle grinders are the one tool I’m too pussy to use. I’m fine using chop saws and other power tools but I’m scared of angle grinders. I’m terrified of the disk fracturing and becoming shrapnel or cutting off my finger. How do I cope? I managed to do every project and job so far without one.
>>2865140That works until it doesn't. Why no guard? That task is not interfered with by a stock guard. BTW since you now have a usefully modded grinder if the spindle threads match any of your angle grinder threads you can use angle grinder attachments with a bit of fiddling with nuts and washers.
>>2860455There was that tranny who buzzed his dick off with one
>>2865928This particular task would have been ok with a guard. I throw those damn things away as soon as I unpack the grinders. I'd have to push them on and take them off constantly which would just be annoying. That is a 12" disk sander from harbor freight that I am modifying. You never could sand right up to a shoulder on things because the guard on it would hold the part away. The bearings started squeaking on me the other day so I disassembled it and put fresh bearings in. while it was apart it was that perfect opportunity to cut that back a smidge. It is a keyed shaft that runs a 12" diameter cast iron platen that you put those self adhesive sanding disks on. I run 40 grit zirconia disks on it and it'll flat out remove some metal.
>>2863902> Bouldering VideosHnghhhhhhh…Also IRL bouldering. I kinda hate that it became such a watered down mainstream thing, but otoh, ogling half naked girls in poses that present all their best features (and staring is allowed! Because you’re just checking out the moves to try them yourself) is quite hot. Diamonds, I tell ya!And speaking of diamonds: those diamonds discs are neat, but I’m always afraid of something catching in their teeth. Like, what’ll happen if there’s some iron in that wall?Pic related, my last angle grinder project. Absolutely terrifying, cutting around totally blind.
Idk what people even use em for.
