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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!

Raid The Airwaves! Edition

Previous thread got drone striked: >>2753258

Eternal thread theme: https://www.youtube.com/watch?v=7gd43b_ZcuU [Embed]

>New to /ham/? Read this shit!
http://www.arrl.org/what-is-ham-radio
https://www.fcc.gov/wireless/bureau-divisions/mobility-division/amateur-radio-service
>Your search engine of choice works well too!

>The FAQ is now back:
>https://wiki.cybsec.io/index.php/HamFAQ
>OP, the cybsec domain is gone.
>NEW FAQ is updated to preview 15

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>>2773362
bootlicker
>>
>>2773591
>posts picture of himself
weird
>>
>overhear larper reeeeee over ham boomers gatekeeping him because he's too dumb to memorize easy questions and answers
>he just buys a UV5R and programs his larper channels just because his larper friends told him to since they saw it on a larper channel on YT
>turn on my Scatman rig and have Scatman play on every larper channel
Ski-Ba-Bop-Ba-Dop-Bop, larper.
>>
>>2773995
k, have fun
>>
>>2772220
fuck cb and ham and walkie talkies.
use a 900mhz radio that lets you have talk groups n privacy n shit that will blow any deaf chinkshit radio out of the fuckin water. Available for free at ur local cop car, ensuring you have plenty of people to talk too while out on the road

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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>>2773987
Ebay bro. Used. Find someone that will remove the battery / ship it without, then it's light and small. Some seller that sends stuff overseas.
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>>2774133
Why bother masking your shitpost as serious reply?
>>
>>2773960
It's a little tricky to find that particular board, but even so, you must like wires everywhere. Yes, you can stick in a project box, and when you are done it's going to be the same price, plus your time.

>>2774066
His real problem is he is staying on shitbergstein and needs to move. Also seemingly has no creativity or natural impetus to adapt and overcome. NGMI. That is called having an utter lack of life skills. OP don't be mad: we are all ignorant of something. But you need to overcome the ignorance to the particular needful issues going on around you, and the apparent lack of drive that your parents left you with.

I read many threads, with young males in apartments that need to get the fuck out of the city and be a ranch hand for awhile, learn homesteading skills, and not be so utterly incapable and dependent like a baby on a teat.
>>
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>>2774121
>>2773955
>>2773874
Somewhat unrelated to OP, but does someone know a neat alternative to these coming with a terminal instead of 12V connector without having to use pic rel?
>>
>>2774160
>alternative to these coming with a terminal instead of 12V connector

pls rephrase question so it make sense.

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How hard is it to build a delivery robot just to go around my local suburb? Surely I can just put an electronically locked cooler box on an RC car, equip it with an Arduino and then remotely drive it back and forth to restaurants?
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>>2774001
How diverse is neighborhood?
>>
M
U
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ACID
T
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M
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ACID
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>>2774001
>Surely I can just put an electronically locked cooler box on an RC car, equip it with an Arduino and then remotely drive it back and forth to restaurants?
yes you can! but how reliable will it be?
you could do what i did and nigger-rig yourself an RTK gps with an raspi and a ublox M8 gps, if your lucky itll be centimeter-accurate the whole time and it will follow the preplanned path perfectly.
>>
>>2774001
easier to do it with an ardupilot quad with a servo that releases the payload
depends on what you wanna deliver
>>
>>2774001
For what purpose? For an actual business just get an actual starship. It'll beat your delivery guy in 4-12months, has warranty, service and works ootb

I read Robotics: A Very Short Introduction by Alan Winfield and it mentioned building an e-puck, but that still leaves a big hole before building quadrupeds
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>>2773943
>>op wanted to do it all from scratch
where does it say OP wants to do it from "scratch." This is the diy board, not the reinvent the wheel board.
>how can I make a cake
>get cake mix and bake it at home
>okay thanks see you later
>>
>>2773879
picture might make more sense if it was dated.
if this was a few years before the orville wright brothers took to the skies then sure good point, but if it was a few million years prior then it completely changes the point of the message from dont give up to just give up
>>
>>2773979
it was in the article linked
>In 1903, New York Times predicted that airplanes would take 10 million years to develop. Only nine weeks later, the Wright Brothers achieved manned flight. The pathologically cynical always will find a reason to complain.
>>
>>2768952
You have to learn how to move yourself and understand what you're doing before you'll get good results. Slow is smooth, and smooth is fast. Anything you can do fast you should be able to practice slow. If you can't bapance on one foot and know what you're doing to make it happen, you will be lost. This is why all of James Bruton's walking robots kinda fucking suck.
>>
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all you shit ass retards in this thread are all fucking stupid
click this fucking link https://github.com/reubenstr/zuko then click the other links in it and google the shit you dont understand

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I am not a science major, but what exactly would a garbage recycler machine the size of a car need to have in order to refine waste material such as used plastics, used cardboard/paper, and maybe glass?

And would it be possible to refine dogshit, dead bugs, or food waste to be used as some sort of fuel material? Perhaps something that can digest the waste and use the byproduct of something like I've heard of pigshit/cowshit being refined into methane?
>>
You must be an arts major. Maybe communications.
>>
>>2774143
Yes
>>
>>2774143
This is impractical and stupid. Maybe read a bit about how recycling works and about economies of scale and you’ll understand a bit about why the waste goes to the recycler and not the other way around.
But who are we kidding, you aren’t gonna read. If you were you would’ve spent 10 minutes researching and realized this was stupid instead of coming here and asking people to spoonfeed you the solution to a very complex problem
>>
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>>2774143
>And would it be possible to refine dogshit, dead bugs, or food waste to be used as some sort of fuel material
But why? Just incinerate it and use the power from the incineration, like we already do.

you can buy a 3 phase AC motor at 1000w for about $120
put it in reverse and its an ac generator
if i convert the ac to dc, and then dc back to ac would that work as a method of getting the power to a normal 50/60hz?
i cant think of a cheaper way you could convert an unknown hz to a steady 60

on the topic, what is the efficiency of running a motor in reverse as a generator?
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>>2773944
but it didn't. It cost about 3.50 cent
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>>2773834
>you need a rotating magnetic field
>add strong magnets
>>2773845
>but no fucking magnets
>which is essential to a real turbine
Anon, this better be bait.
>>
>>2773830
we already had a thread on wind turbines >>2770767
>>
just get a solar inverter
put your unknown AC through a rectifier and the inverter will turn it into whatever you need. It will even handle voltage fluctuation.

OPs setup would have massive, depending on the rpm.
>>
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>>2773929
>Maybe you meant that you have to spin a motor faster than it normally runs

right
it wont be a generator unless you spin it faster than it would normally run as a motor
but that's not the end of the story
in order to get significant power out of it you have to run it above, BUT VERY CLOSE, to its normal speed
so it can be a tricky business, commanding the wind to blow just right

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A place for anything to do with Welding.

Post your welds, ask questions and discuss sticking metals together.

IDK I just want a place to talk about welding.
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>>2774017
No reason you couldn't
>>
I just got into learning tig and it's way way easier than what people say, yeah I contaminate my electrode sometimes but it's not a big deal
> can see everything, no sparks or smoke
> full control, can add wire if I want and decide how much
> all welds penetrate
> even the worst welds look nice
Tig is the shit
I saw some extensions for sale in a shop near me, gas lens, do they make a difference or save gas? Are they worth buying? Because they're bigger than normal cups and cost more
>>
>>2774132
>gas lens, do they make a difference or save gas?
They give better gas coverage. You can turn the gas flow down for similar coverage, or use a higher flow to do things you can't with a normal cup, like using an extremely long electrode stickout to get into an awkward place.

>Are they worth buying?
Yes, if you regularly weld and/or have situations that need improved gas coverage. They are also more prone to damage (they do last a while, but it does happen), so you should keep a spare handy.
>>
>>2774153
Thanks, I saw welders on yt shilling them for stainless but I didn't see the point since you can wire brush and grind oxidation after you're done
>>
>>2774132
you can reduce the flow a bit on bigger cups and still get coverage. i don't think a #12 cup could even work without a gas lens.
most of the time you're gonna be using more like a #6 which isn't really flowing much, so you only get the side benefits.
the normal gas lens #6 lets you stick the tungsten out a bit more.
the "stubby" gas lens #6 is a very short cup that still gives ok gas coverage.

in this video they blow smoke instead of argon
https://youtu.be/Zy7YZHbUt3I?t=187

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Realistically how much of a house construction could a single man do on his own? (obviously talking about a regular brick house)
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>>2771872
I don't know about that. It's the "AirBnB problem" just in a different form. Nothing is stopping the local govt from just suddenly getting hard-ass on code compliance and then you'll have instant trouble
>>
>>2769675
In most places of the world you can do illegal construction and then just deal with the government, whom often will give you a fine but wont order the building to be torn down.
Third worlders will take this to an extreme level and do illegal electrical connections to nearby electrical substations and just siphon power for their slum.
>>
>>2772761
They do this in places like Brazil or India. Never try it in Israel.
>>
>>2772762
>ads for deodorant
This cant be india
>>
>>2770504
>>2769903
Did you ever consider it's your souls karma attracting you to inhabit a place where someone else tells you how to wipe your ass?

>>2770270
You need to grab a b*tch from out east if you're white. North american females are garbage.

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>>2763701
I wonder how fire proof it is.
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>>2763701
>Building a one story house with anything but bricks
NO
>>
>>2763909
>Some types of foam rodents won't touch.
If even rats don't touch it would you really want to live in it?
>>
>>2772924
>If even rats don't touch it would you really want to live in it?
this passes for logic around these parts.
>>
>>2763891
they get big ass monsoons in august and september

I have a set of stanley brand batteries a charger and a drill and now I'm looking into getting a few more tools for my home. Problem is stanley is a dead brand, at least here where I'm at.
There's nothing in stores, there's almost nothing online and even if I managed to find something I don't think the dewalt dealers here will work with a stanley warranty.
Do I just sell my drill and batteries and start over? Or use adapters and buy dewalt or something?
What would you gents recommend?
>>
>>2773873
These threads are not useless, battery deprecation, incompatibility, and switcharoos with cheap chinese cells after the initial reviews are in are very common problems, you’ll face them every fucking year now if you’re a heavy power tool user.
>>
>>2773873
Regardless of what tool brand you buy into you should learn to rebuild packs. A $40 spot welder on ali express and learning how to identify what cells make up the pack will basically keep the tools running indefinitely. Or save the $40 and buy cells with tabs installed for a few dollars more. Or solder directly to the cells but be warned that if you don’t work extremely quickly the cells will explode and even if you do work quickly the heat transfer will degrade the cell and make it perform worse.
At least until manufacturers pull apple bullshit and start including ICs that communicate with other ICs on the tool to indicate how many cycles a pack has gone through and to permanently disable a pack once it hits a “dangerous” amount but afaik no one does this (yet)
>>
>>2773873
Man I wonder if there’s any possible way the Porter Cable packs fit. That’s for you to google, then you could possibly expand your dead brand into a dyng brand as well

>>2773899
>very common problems
Only if you buy the Walmart or Costco special. It should be assumed that you’re buying the thing for the life of the battery if there’s no option to buy a spare battery alone when the tool was sold to you.
>>
>>2774057
>>2773873
Fwiw, the PC batteries could possibly fit. Stanley Black & Decker has compatibility between some other brands. Like IIRC, the Mac cordless tools and this industrial grease gun (Lincoln?) and possibly some other 20V tools from across the company’s portfolio actually fit DeWalt 20V packs.
>>
>>2774057
>>2774059
Yeah my quick research showed that there might be some compatible brands to the batteries I have, but the problem is basically the same. I can't get those tools here.
Basically I have to choose between makita dewalt or milwaukee.

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Abominations Thread XLVIII

Redundantly redundant edition
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>>2768874
it's for dog grooming
>>
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>>2768546
>>
>>2763996
this was the picture that started abominations threads
>>
>>2765297
mormon church baptismal font
>>
>>2769183
does the basement have a separate entrance?
in mining, coal, and other heavy industry areas, its common to have a wash room very close to an alternate entrance to the house, so the man when returning home could put his soiled clothes in the washer, clean himself up, and not track filth into his house

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anyone know how to remove this joint?
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>>2771273
>>2772947
>>2773413
JUST WHAT IS GOING ON
>>
>>2773404
>are you blind or dumb?
That's a very aggressive attitude.

It's certainly not clear in OP's photo that this is a piece of rebar embedded in the wall and welded to the window frame.
Perhaps you're personally familiar with this building technique, so you can recognize that for what it is.
But it's not clear based on the photo without that additional personal context that you possess.

It's very unkind of you to take such an aggressive approach toward others in this thread.
You'll live a happier and more fulfilled life if you make an effort to be empathetic and understanding toward others.
>>
>>2773413
Yeah, /o/
>>
>>2773413
I'm convinced /mu/ is the single most retarded board on this website by a country mile, including /s4s/
>>
>>2773810
how about i clog your windpipe with my hefty turd, huh?
If you can't tell clearly how someone should solve an issue they have, you sit and wait till someone who knows comes and shares - it's how you learn shit.
By giving answers to things you don't know you only end up looking like a retard, or in your case a whiny bitchass retard.

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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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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.
>>
>>2774117
just use a jigsaw and a straight edge

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

Comment too long. Click here to view the full text.
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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.
>>
>>2774007
It never matters. If it does, you should be using a precision voltage reference instead. Some voltage references like the REF3333 can be used as voltage regulators for low power analogue ICs. They can also push and pull current IIRC.
Your post number is a 1000V diode.

>>2774046
Since L4 and L3 are both really small, I'd guess you're just not able to measure the precise difference between the winding resistance. Build a current source from an LM317 and a 9V battery, and use it as a milliohm meter.
Your post number is that of the CD4046 based PLL IC, even better.

>>2774085
Idk, ever tried getting solder to stick to fine stranded aluminium wire? It just beads right off, even with plenty of flux. Can't see why graphite would be any different.
4085, what the hell is an "and or invert" gate?
>>
>>2773935
>cool
only retards and lowlifers smoke these days
which one of those are you?


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