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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:
https://sites.google.com/site/diyelmo/ (archived)
http://www.engineeringtoolbox.com/
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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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Use this thread to ask questions you think don't require a thread of their own.

The old thread no longer bumps: >>2766519

If you didn't get a response in the old thread, feel free to ask again here.
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>>2774072
You get heavy angular momentum putting stress on all the parts keeping it from throwing metal into everything else as well. You can use something like that for a fly cutter because the weight keeps the momentum up and the cutting depth is super shallow. It just doesn't help in any fashion for doing more work.
>>
I'm going to cut a (or multiple havent decided yet) faceplate for a eurorack synth I'm making for school. I got a 6"x24" piece of steel sheet metal at 22 gauge to make it. I'm looking for what would be the best way to cut the metal precisely. I need the face plate to have a height of 5.06", and the width I will decide after I've planned where I will put all the dials and inputs in autoCAD. Would a table saw get the job done or am I at risk of fucking myself/the saw up?
>>
>>2773881
idk maybe try >>>/g/sqt or even >>>/sci/sqt don't expect a reply tho
>>
How dangerous is it to remove asbestos popcorn ceiling yourself versus hiring someone? Like am I gonna get cancer or some shit even if I wear a mask or do I need more than that?
>>
>>2774126
The thing about hiring someone is they put up barriers and filter the air.

See, once you scrape that shit off the ceiling, the dust is going everywhere. If your only exposure was when you're scraping, the mask would be fine. But that shit is going to go through your house, into vents, etc.

Short-term exposure may not be that big a deal, but you're going to be living with it for a while.
I'd hire someone who can put up plastic and filter the air, etc., so I don't have to wonder if I contained it well enough.

Are you sure it has asbestos?
Test kits are pretty cheap.

i get daily power outages which will last 1-2.5 hours. to add insult to injury, my IP address changes when i lose power, forcing me to reconfirm my email on discord .. etc.

the obvious solution is UPS, i looked up some models online. the ones available will either work for 15 minutes only, or go multiple hours but cost a kidney.

i thought maybe a 20,000mah power bank with 5v-12v adapter. this will solve the internet connection issue, but won't solve the IP address situation. since i'll have to switch the power plug from AC to power bank each time i lose power (1st power cut), and switch back to AC when power is restored (2nd power cut), then recharge the power bank.

alternatively, i could just leave the power bank connected to the wall, and the router connected to the power bank. but that way the batteries will die in few months, not to mention the possibility of causing a fire.

i need uninterruptible power to the router, that only needs to be set up ONCE, with no manual effort on my behalf. surely diy can help?
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>>2773955
This
I have a gateway on Verizon and a second one on AT&T.
I got two of the Belkin units free from rentoids who moved out and left them.
I replaced the battery in one of them in January.
It was $20 + tax shipped free.
I use a laptop for internet. If the power goes out, the internet stays on and the laptop just runs on it's internal battery.
>>
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>>2773987
>>BU3DC001-12V
>i looked it up, it's not available. but thank you for your suggestion.

https://www.ebay.com/itm/266723767227
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>>2773951
This is the case for me except it’s staggered. I assume whatever infrastructure powers my local internet node thing is on some kind of backup power that lasts 4 hours because if we lose power for more than 4 hours the internet goes out every time. We live in an area with frequent power outages where tons of people have generators and such so you’d think they’d beef that up a bit but nope

>>2773923
Yeah that’s powering my router and modem with the dinky 825va that has an old kind of worn battery. If you want massive up time get a serious ups. A 1500 or 2000va should power that minimal of a load for ages unless you have some goofy router setup where you’re using an entire ass pc
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>>2773892
i think you mean texas?
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>>2773874
I deploy these at my workplace to remote sites that run off a GSM router, this keeps the vpn up.

It will run for 35 hours
https://www.amazon.com/gp/aw/d/B07H8F5HYJ

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When electricity prices peak during the winter, buying firewood becomes cheaper than electric heating. This got me thinking, would it be viable to use the heat generated by burning wood to generate electricity as well?

A steam engine doesn't have a great efficiency in turning heat into motion, but if heating is the primary reason of burning wood, the amount of heat "lost" to the building around the engine isn't really lost at all. And with heating taken care of, a 2 horsepower engine producing 1 kilowatt of power would be enough to run the rest of the household appliances as a bonus.

I looked into steam turbines as well, but apparently the steam would have to be extremely hot to avoid reducing their lifespan. Steam engines on the other hand are way less picky about the heat and moisture, and have greater tolerance for manufacturing imperfections. The main issue I can think of is how to get the pistons tight enough that no steam gets out, because any moisture escaping the closed loop of boiler-engine-condenser could cause moisture damage to the building. So, what do you think?
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>>2769441
You'll also definitely want some CO monitors everywhere near your build unless you want to die from a leak
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>>2773689
Oh look its the sky is falling, asbestos, mold bad bitch….go away cunt you’re bringing me down
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>>2773696
Every year dozens of people diein our small country from carbon monoxide poisoning in their own homes, not even DIYing stuff, just missing the basics. I'm not saying don't do it, just be smart about it and don't kill yourself saving ten bucks.
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>>2772971
>Like EV bad.
No, it's not remotely that bad, not unless it's very wet.
>>
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>>2773699
>don't kill yourself saving ten bucks
Only ten? Sounds like a bargain.

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>>2774005
>What part of "everything is toxic with the right dose" is hard for you to grasp?
you're saying nothing of value here retard
nobody drinks a nontoxic amount of coffee
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>>2774011
You could possibly try to say something of value, that might help your case, genius. Nobody drinks a non-toxic amount of water, either.
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>>2774011
Literally everyone drinks a nontoxic volume of coffee, it's impossible to drink that much. The only way to OD on caffeine is with pills.

What would be really hilarious is if you're this stupid about coffee, but think tea is fine.
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>>2774030
Panera charged lemonade
I'd guess some energy drinks have to be pretty jacked, but they must be regulated.

Toxic and arrhythmia inducing are separate things.
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>>2770075
A coffee pot

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>>2773974
>Not being tied to a cord and having more powerful and ergonomic cordless tools is such an awesome luxury.
Yeah, maybe you're right. I'm not going to argue with you about it. I don't know.
Maybe I'm just stuck with the decision I've made then, and since my corded tools aren't likely to wear out anytime soon, I probably won't be buying anything new cordless for a while. I don't like replacing things that still work fine.
I suppose the good news is, battery tech likely keep getting better. Eventually I'll probably give in.
>>
>>2773974
>Meanwhile all of the corded tools will be stuck on shitty 80s and 90s designs.

Oh no, how will I survive without a new combination of brightly colored plastic and rubberized dark trim with useless zigging grooves and zagging ribs like a child's ray gun toy every 3-5 years, all supporting a blade arbor or chuck and a trigger just like every handheld power drill or saw has been configured since at least as far back as WW2?
>>
>>2773480
Yeah but my first milwaukee battery I bought in like 2011 still works.
Dealing with cords sucks fucking nuts and I used to be team cord but I can't fucking stand cord tools now.
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>>2773153
If I use it a lot, I go cordless... But a lot of tools I rarely use and corded is fine and I don't have to worry about batteries in the long term. I have some corded tools that are 25 years old... Would hate to think a battery would last that long without having to be replaced just from age.
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>>2773561
I'm not buying chink ass fire starting batteries... Good batteries are super fucking expensive

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Hi! I'm having problems getting my manual auger past the p trap. Is there anyway someone could give me a few tips? Tried rotating both ways and constantly pushing
Thank you
>>
Just take the trap off. They're usually just compression fittings you can unscrew with some channel locks, or even just your hand.
>>
add a little vegetable oil, she just needs a little lube ok?

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How do I learn how to make dioramas like this?
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>>2773636
sorry about the snarky response, but this is legit what 3dp does best. The real skill would be getting the finish and the painting right.
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>>2773636
>>2773637
Ehhh, depends; to 3D print you still have to make a model in software first. if you didn't need a particularly high fidelity model and had existing blueprints, you might be able to make something like OPs pic out of foam/chipboard faster than you could model & print all the buildings.
>>
What ever trips your trigger op
Bet youre a real hit with the ladies
>>
Try /tg/ or look up tabletop terrain builds on yt, wargaming autists make some cool looking shit
>>
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For this particular city, you'd start by finding a good scaled drawing of the city along with heights of the multi-story temples.
Find a big board, then scale your map to fit.
Most of the flat one-story buildings can be slabs of wood or cardboard with color-printed paper to go around the sides.
The temples can be multiple slabs with beveled edges, and paper sides again.
Just try it, you'll think of better ways or materials when you start

... I tried looking for Tenochtitlan (I think that's your example). I think the hardest part is probably finding an accurate map that shows buildings

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How is the bamboo labs 3d printer so popular when it's fucking unaffordable
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>>2773665
Its overpriced, sure. I honestly recommend buying one of the derivatives when they drop down to $300 on sale, they're "good enough" for what they are.
The A1 and A1 mini are actual rip-offs.
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>>2773716
Bump
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DIY RODENT PEST CONTROL. Why are there no products in US to stop rodents from enter from the fucking sewer? I am thinking of smoking my pipes to find if they chewed my cast iron.
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>>2769671
kek, either it's too much shit water or too little with them.

talked with a guy from the city's sewage company some time ago.
central Europe, so the sewage system is old but gold.
he was complaining how modern households don't release enough water into the pipes and they now have to regularly flood the system manually.
>>
>>2772207
That's a big issue in california. We've had low flow toilets for 25 years and they're fucking ridiculous. Need to flush three times to get a decent load out of the toilet and down the pipes anyway.

All the plumbing is pitched for the old flow. The new flow just isn't enough. Ohwell .ore work and money but at least we're saving water.

I fucking hate my toilet so much goddammit. I need to diy a tank expansion
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>>2764175
better be a doo-doo check valve in there for the up coming ozembic fatbergs
>>
Can anyone help me ID what the fuck is in my ceiling (between first and second floor)?


- Mostly active during the day but just heard it scurrying again.
- Moves very fast and erratically
- Might stop moving for a sec if I bang the ceiling but that's it.
- Can hear it entering from outside and climbing up the walls
- Never hear it in the summer

I think it's a red squirrel but can't tell for sure.
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>>2774068
probably a rat

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What can be done with old car batteries?
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>>2773470
some of us wants to use them for our bikes so cold charging isnt important, as in winter the bike stays in. Which is kinda the problem with small lead batteries, the self discharge is actually big
Anyway, where do you guys recommend for buying high amps cells? i am in europe, the shops i know are good for storage for for high current
>>
>>2769878
Hmm, alright, may try this out.
>>2771477
I've got a metal melting furnace and some equipment already, and have experience pouring, although my furnace might get too hot too quickly for it?
I just want lead stock for filling hollow cast metal things later, although bullets would be fun.
>>2773486
I'll do some research. Thanks for the lead!
>>
>>2765938
I used to work for a battery place. Like 70% of all batteries have been re used. You use a thing like a turkey baster to pull out the liquid, then refresh it.
>>
>>2773831
Is your dad still working for Nintendo?
>>
I like to drop them out the window going down the highway at 90 mph. It’s hilarious especially if it crashes into something

Thread cooked:>>2767459

>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.

>Incredibly comprehensive list of electronics resources:
https://github.com/kitspace/awesome-electronics
Additional resources below:

>Project ideas:
https://adafruit.com
https://instructables.com/tag/type-id/category-technology/
https://makezine.com/category/electronics/
https://hackaday.io

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>>2774032
Graphite is conductive. I imagine a bunch of tiny threads getting snagged and shorting out random shit all over the board.
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I need help identifying this transformer, I thought it was a center tapped one but why is there 1Ohm between pin 2 and 5? How would a symbol for it look like? Or is it just shorted?
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>>2774036
>Graphite is conductive
Less so than the copper strands in conventional and expensive desoldering wick. I'll just cut or pull a tiny pinch from the carbon welding mat, brush on a little liquid flux and hopefully get much success.
Hopefully it will turn out reusable if it doesn't "wet" like metals. Unless it's totally insulating like the welding mat is intended to be.
>>
>>2774010
You misread me. Most ATmega can run from 1.8V to 5.5V. So can the CH32V003 if I recall.

>>2774032
Desoldering wick needs to wet to solder to work, otherwise the solder will just stay on the board. Graphite does not wet to solder. Would be like trying to use aluminium.

>>2774046
Chances are one of those 360R coils doesn’t exist. If you delete L2, measuring from J1 to J5 will get 360, and J1 to J2 will give 361. If both did exist, you’d be measuring 360 in parallel with 361, resulting in a resistance of 180.5, so either way your diagram isn’t accurate. There could be a short, or there could be one big and one small winding, hard to say. I’d either use a milliohm meter to map the resistances more accurately, or feed some AC into a coil and see what voltages you measure. I doubt it actually has three windings in a triangle like that.
>>
>>2774078
>Desoldering wick needs to wet to solder to work
Capillary action and other such properties of fluid dynamics has nothing to do with wetting which is the mixing of materials in the surface layers to create a strong bond.

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>2 and a half years of trade school electric classes
>not even a shovel job, ignored by everyone
Am I in the wrong /diy/ field? Should I fuck off to plumbing?
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>>2771892
I'm 3.5 grand in the hole.
>>
Bump
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>everyone ignores me
Did I just hear a toilet flush?
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>>2760531
Not OP but in the same boat, and after doing more research it seems electrical tops out at pulling wire in some way or another. I'm now looking at union pipefitting apprentice programs so I can do crazy shit like offshore or nuclear jobs. Will that help me make it? I don't like the "ok with mediocrity" mindset electrical has. No one is saying you can get 300k as an electrician, but plenty are for fitting and welding.
>>
>Manager of small, local retail store
>Fuck this shit, I hate this job and the general public
>Already old, not doing 4+ years of college
>2 years of industrial maintenance with robotics and couple thousand dollars later
>Guy from plant with profit sharing so easy 80-100k a year job comes to my robotics final presentation and likes it, invites me to plant for interview
>Super excited, my life is on track finally
>Goes fucking terrible, he wants someone with like 10+ years of experience and there's not a single robot in the plant so why did he come to a robot presentation????????????? Why did he ask a recent college grad with no experience to come to an interview when he wants someone to plug in and hit the ground running??????????
>Apply and get declined for even an interview at every large factory I apply to
>Got an interview because of a personal connection in a few days and the HR cunt that gave me a call made it sound like I had no shot and was only getting interviewed because of said personal connection
>"Yeah anon, I see you've worked retail. What shift would you be interested in? We've got a couple of weekend third shifts for operators."
>Probably gonna get a job offer as an operator for less pay than I make now sitting on my ass and dealing with retards
Thinking it's over if this goes how I think it will

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This lil' tool is the Mercedes of wire strippers.
>german
>costs way too much
>works great
>has unique features (leave a bit of the insulation at the end of the wire so it doesn't tangle)
>doesn't do all that much more than its far cheaper domestic or asian competetors
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>>2773249
They use a reseller model for distribution outside Europe.
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>>2773425
I used to use one of these but I'm so fucking fed up of the weird fucking jaws not quite biting a wire I know to be at the gauge specified. The flat die ones, like OPs, or picrel, are generally superior
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>>2773534
Reminds me of the OTC style wire strippers/crimpers that a lot of mechanics love. But that’s mostly because the crimpers on the front makes it far easier to crimp wires in tight spots.
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>>2773597
Fuck these chink abominations. At that point you're better off using >>2773002.
>>
I've just bit them off, but I recently got veneers and dentist said I shouldn't do that anymore

What is the best trade for someone like me who is very anti-social. I am 23 and have schizoid personality disorder. Most people with this condition are asexual hermits who are unemployed and are emotionless and zombielike. Almost like they were lobotomized. Which is basically me.

plumbing or HVAC seems to be decent. Most people hide when a contractor comes and only comes out and continue their lives when they leave.
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>>2767330
based Dad answer is based. Gentleman take notes.
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>>2767422
This sounds comfy.
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>>2773772
Lefties are far more forgiving and accepting of anti-social hermit pariahs. How do you think they got so crazy in the first place?
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>>2773784
>Lefties are far more forgiving and accepting of anti-social hermit pariahs.
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>>2772141
Apply. I honestly don’t know what else to tell you. Read up on how to strip and wax floors. That’s about it assuming you know how to clean a toilet, use a mop, and vacuum carpet.


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