/diy/ - Do It Yourself

> TL;DR, How do I hang doors with a poor reference to square?
So last tenants at my rental left behind an aviary in just terrible condition. I have stripped and painted the frame and am preparing it up for my 5 cockatiels. I however have no idea how to hang the doors. Whoever made the frame couldn't into square, and the end is more of a trapezoid than a rectangle.

I plan to temporarily screw the two doors together with a 1mm or so shim between them, attach the hinges to the doors, then, using more shims, attempt to center the doors into the hole and drill/screw the hinges to the frame. Is this legit or is there a better method that saves me having to fill out the screw holes from whatever I use to attach the doors to each other?

what to do with all the dust left over from tile demo?

>>1263358

if you have four clamps you could clamp them to another board if you have a long board, or use two small boards with one at each end.

>>1263358
if there not some kind of pipe clamp you could use to attach 1x4s to the frame ?

samsung snw-4012vka
12V 3.34A

what device is this psu meant for, some satellite tuner?

got no clue by googling.

What is this thing? It seems to have plaster or something similar on it.

>>1263418

it looks like a nail setter for finishing nails. you put one point on the nail head and pull the other end back to stretch the spring, then you let go and it drives the nail under flush a bit so you can putty it.

I don't know if carpenters use them, but as a painter I liked not having to have a hammer on hand when I ran across a nail that the crackheads did not set.

>>1263418

>>1263393
>two small boards with one at each end
Good call. Two seems to have done the job, thanks man.

>>1263411
The door frame itself is not square. top is 965mm wide, bottom is 957mm. If I aligned each door to the frame there would be a 7mm gap at the top. I'd rather eat the extra space where the hinges meet the frame, less obvious there.

>>1263413
Google says it's for a fax machine.

Anything worth saving from an old 220 window ac?

Where to find wireing diagrams for lawnmower motors?

I have alot of creeky floorboards. The ones that i want to deal with first are underneath carpet in my bedroom. How do i go about doing this? Can i pull up the carpet and put it back down when im finished or is carpet ruined when it gets pulled up? Is there something i can do about the creeking from down in the basement?

>>1263456
Where the doors overlap add an astragal secured to one of the doors. That will cover the gap when the doors are closed. Only drawback is you have to open that door first.

>>1263474
>>1263474
>a fax machine
>a
model name or gtfo

http://www.rhinocarbonfiber.com/staples.php

Do foundation staples actually work or is this a scam? Im looking to /diy/ some cracks and I cant use epoxy because a previous owner tried to fix them with mortar or some shit.

Im going to use foam to fill them, but I read I should use the staples to reinforce the cracks structurally since foam doesnt have any strength to it unlike epoxy (which needs a clean crack)

>>1263378
>>1263391
I don't remember if you can quote from other threads, but thanks guys.

I'm a cheap ass, and don't want to buy a welder. Is there an alternative to welding bolts together? I'm thinking along the lines of JBWeld or maybe just swinging by a local school and getting a student to do it.

On an unrelated note, my mother just told me she's selling her hybrid because the battery is on its last leg. Aren't those just stacked 18650s, and like a laptop battery, only have one or two bad cells? She's trying to retire soon and if I can save her from having to buy a new car, I think that would help.

What are these called, and can I buy them locally in the northern part of San Diego County?
I also wouldn't mind buying them online.

does anyone know the best shoes for walking standing seam metal roofs?

>>1263789
That's a 3 pin JST SM connector

>>1263590
If you try to repair a hybrid car battery, you're going to die. Not even joking, you will cease to be alive.

Where can I buy copper wire? The hardware store?

>>1263797


korkers claims their foam soles work.

you haven't lived until you tried to walk on a cedar shake roof that has some green algae, in the morning when there is some dew. even if the roof is nearly flat you will skate around like it's a miracle lubricant.

>>1264059
NotHim, but why?
this is hyperbolic BS, it is just basically individual cells - sticking them all togehter does not provide magic witch powers that will kill the second you wave a screwdriver at it.
>>1263590
what kind of car/mileage? most of the manufacturers extended their battery warranty to 8+ years (even if less at time of purchase). Dunno fug about the subject either desu, but, I fail to see why you couldn't replace individual cells, as you suggest, or whether the battery would be responsive to 'recharging tricks' - though I'd maybe start to agree with above, High Voltage burst charging or similar on a complete car pack, thats a 'stand well clear' job.

>How do I repair my ear phones with mic, it has two red wires with copper things spirals around it. One straight up copper wire, one blue wire. I have realised I needed a special jack that support the mic But I don't flcare for the mic. I want the earphones working. Here is pic. Thanks.
>Also will a bad job be able to electrocute me or is worst case scenario it doesn't work?

Where does each wire go? All yt videos dont apply to my situation of not care for mic pls help

>>1264084
just buy some electrical wiring, shave off a couple cm plastic from the side and pull.

Can I put an abrasive blade on my miter saw(2000W, 2500RPM)? Will it kill me or the saw?

Why doesn't my 120 volt pool light work

It just flickered and turned off forever

>>1263355
Recently my back has been so sore when I wake up in the morning, it's very stiff, what can I do to fix this?

So my daughter is on my ass about putting up a tire swing. While I'm perfectly capable of hanging a tire from a tree and drilling a hole in the bottom to let water drain, what I was wondering is will the tire being exposed to the elements eventually clean the black crap off of it, or do I need to use a cleaner or sealer of some kind to keep my baby girl from getting black shit all over her?
It's a simple question, possibly stupid question, so I guess it fits.

>>1263355
I've got a stupid question. SQT probably stands for 'stupid questions thread' but what does SQTDDTOT stand for? I'm new

>>1264435
Stupid
Question
Thread
That
Debilitates
Derailment
To
Other
Threads

I keep trying to sharpen this folding knife and this time I spent the last four hours trying to follow chapter 3 of this
https://murdercube.com/files/Knifemaking/Knife%20Sharpening.pdf
but It still won't even cut paper, I keep reading stuff about sharpening but nothing works

I'm SEETHING

>>1264446
>https://murdercube.com/files/Knifemaking/Knife%20Sharpening.pdf
>138 pages
No wonder I can't ever get anything as sharp as the wizards on youtube.

I was able to get a chisel and plane sharp using a roller guide and cheap Japanese water stones. Still not having any good success with knives. I will just say not to bother with the lansky sharpening jig/set with the thin stones.

>>1263506
>astragal
I already planned to screw a 30mm strip of aluminium down the edge of the narrower door for just that reason. I don't want the larger door opening unless the smaller door is open, period. Plus, ya know, it helps cover the misalignment. I now know what the name of that strip is!

i want a 3/8" x 5 1/2" blind hole drilled on the thin face of 6x6x1" block of 6061. i don't have room for a drill press and i don't have any friends. can i just call up some metal shop and have them do it for me without charging me $500k for 2 minutes of labor?

>>1264435
>>1264437 kek, but originally:
small questions thread that don't deserve their own threads

>>1264509
Yes, you could, but you'd have better luck not getting charged an arm and a leg by trying an auto shop or some other place that has a drill press, but does not specialize in metal Fab/machining. I'd do it for free if you walked into my shop on a workday(metal door/frame fabricator).

I'm thinking my next slightly less than essentially but I want it anyways tool purchase will be a USB C borescope. Just some cheapo one online. Anything I should look for or avoid? Any good apps to use them, or is it all going to be proprietary manufacturer bullshit?

>>1264463
I got one of my chisels pretty sharp but knives just don't work

I'm designing a custom nylon frame for mounting heavy, sensitive equipment inside a transportation container. Gluing nylon looks like quite a challenge so how stupid would it be to use what amounts to a mortise and tenon joint with a locking bolt?

I'm a young structural engie that would like to have a business one day.

I know what I need to know about the forensics route, but I would like more details on what's provided for signing off for people's homes to be built etc.

Where might I start looking?

>>1264509
That's a bit deep for a common 3/8" drill bit, but I'd think anyone in your neighborhood on Craigslist would do it for a couple bucks and you bringing the bit, if you didn't want to ask a shop.

I have a spool of 1mm 1.7-1.9% flux TIN solder. It seems japanese-made, there's japanese on the spool at least. (yes I know it's japanese and not chinese but there are also chinese characters on it)

I've always had a hard time getting it to melt and apply to things, and it's hard to work with in general.

Is tin solder just harder to work with than lead solder, or is it the thickness, or what?

Also, on an unrelated note, how much should I look at for paying for a used drill? What about the bits? There's a local pawn shop that always has power tools but I'm afraid of getting fleeced.

>>1263371
flatten/thicken paints

>>1264775
i'm concerned about wobble using some random guy's press. i'm trying to fit a +0/-5mil cartridge heater in the hole without grease so as not to limit the plate temperature, so the diameter has to be pretty spot on. obviously there's a limit to what i can demand without emptying my wallet though.

>>1264818
If you're concerned about it that much, you should be drilling the hole undersize then reaming it with a reamer.

>>1264818
just admit that you're trying to build a gun, anon

>>1264400
>tfw your question is apparently too stupid for a SQTDDTOT thread

>>1264828
i wouldn't say i'm that concerned, just that i've seen some really shitty drill presses. i don't have access to a lathe or anything and i assume the money i would have to spend to get access to anything beyond the basics would blow my $100 soft budget.

>>1264829
that's way too much work

>>1264400
>>1264838
tires are made out of rubber which degrades and will never not put a little bit of black shit on you. It just rubs off forever until the thing itself is gone. Sorry.

I guess you could seal it with that spray sealant artists use, or something. Paint is an option but that might crack/flake/rub off anyway.

You could just tell your daughter to not use the tire swing while in her sunday best/wedding dress/naked

>>1264282
its probably blown the bulb

>>1264854
Thanks man

>>1264084
yes

also protip: you can get Cat5 in bulk and it's 8 strands of pretty thicc single conductor wire.

>>1264446
I've had better luck with pic related than my whetstone desu. as a kid I actually used one to make a knife from a normal flat piece of metal. it took a while but it had an edge good enough to actually cut my hand up by accident (and to open boxes, etc)

if you MADE the knife then you might need to grind it and then sharpen it to get an edge to start with but if you just bought it in a store than the kitchen knife sharpener should suffice

with a stone, i cant really tell you what youre doing wrong without seeing it, but my advice is to ignore the shit in there about the flat face of the knife and to concentrate on the actual edge. use the rough side of your whetstone until you feel the blade being acceptably sharp; then hone it with the finer side of your stone. put the blade to about a 30 deg angle on the edge, the whole knife to another 30 deg angle in terms of yaw, and push down firmly and trace it forward and to the side to get the whole edge

also that book is kinda shit 2bh, i know how to sharpen a knife but reading that was honestly a little confusing and the pictures only made it worse. i'd recommend just going to youtube or something. most literature you get off of /k/ is garbage used more as fap fodder than as any kind of manual.

heres one, 2 seconds in duckduckgo
https://www.youtube.com/watch?v=t39rhQs6Hqc

me i keep my stone in a bucket with water and a drop of soap all the time (just so nothing nasty grows in the bucket; using oil and soap etc on whetstones is ill advised)

it takes time to get a knife ginsu sharp but once it is that sharp, if it's not made out of pot tin, it'll hold the edge easily and keep that edge with good maintenance.

also if you're being a memester and using a leather belt or some shit, obviously don't do that. get a real sharpening stone. I got mine for 5 dollars at a local korean grocer.

when I'm probing a circuit that I just made or that I want to fix, I'm always afraid that my ohmeter will blow something up.

meaning a typical multimeter on "continuity" setting where it beeps if the resistance is low. can this hurt anything, like too much voltage or too much reverse voltage?

>>1264872
get a dedicated continuity tester if youre paranoid

https://en.wikipedia.org/wiki/Continuity_tester

>>1264872
>>1264875

one of us did not understand the other one.

>>1264877
the first google result is a stackexchange thread which states that some meters use the diode tester circuit for continuity, so you could have 3+ volts across your probes. this isn't ***likely*** to directly damage any ics on your board because most either incorporate protection diodes or can withstand 3v on the inputs anyway but it could indirectly damage things by causing undefined behavior in logic circuits or other things i'm not thinking of.

>>1264884
>the first google result is a stackexchange thread

lol I did it.

sorry.

have a nice drone vid.

>>1264877
oh you mean like the meter will damage the circuit, not the other way around

nothing will happen to anything not inbetween the probes of your tester and testers are made specifically not to do meaningful work and to just test "is there a connection here", you just need to stop being paranoid. its right to be paranoid but sometimes you have to let go and this is one of those time

>>1264889
>you just need to stop being paranoid. its right to be paranoid but sometimes you have to let go and this is one of those time

thanks but I would not use that word. I'm being overly careful, apparently.

paranoid is when you think they are out to get you.

ok, the electrons are out to get me. REEEEEEEEE

>>1264893
>ok, the electrons are out to get me. REEEEEEEEE
oh they are. but theres not nearly enough of them to stop you

>>1264866
hi stupid question but will it hurt this stone if I put it in water, it doesn't say water stone on it
https://www.walmart.com/ip/Craftsman-s-Pocket-Stone/38470968?wmlspartner=wlpa&selectedSellerId=1060&adid=22222222227026496990&wl0=&wl1=g&wl2=c&wl3=52595035511&wl4=pla-84476388671&wl5=9001645&wl6=&wl7=&wl8=&wl9=pla&wl10=112550001&wl11=online&wl12=38470968&wl13=&veh=sem

>>1264927
it looks like a normal whetstone but
>wal*mart
>3$
who knows what will happen. knowing the yankee free market, it will probably burst into flame on contact with air after opening the package but if you sue you'll be killed by CIA spooks trying to preserve the integrity of the upcoming race war

>>1264463
>>1264689
watch some japanese knife sharpeners sharpen on whet stones.

>>1264781
Lead free solder is harder to work with and has a higher melting point.

Drill, probably no more than half price, unless it's almost brand new, then maybe a bit more. Check the batteries too, especially date codes. If they look way more work than the drill, they probably don't hold a charge. Bits, don't buy used, short of finding a huge Craigslist haul of someone retiring or something. Unless you're going to sharpen the bits yourself, any small ones are just consumables, and treated as such. Go walk through Lowe's or Home Depot and check ballpark prices.
>>1264818
How hot is it getting, and does it need to be serviceable? A high temp grease might do the job, or some kind of thermal interface material, or what reasonable companies use on processors, solder.

>>1265099
it's meant to be a hot plate for reflowing solder, and the plate itself is solid state so i don't anticipate a need to service it. it won't ever need to go over 500F in practice but the assembly should function to 1000F and i'd hate to have grease be the limiting factor unnecessarily.

>>1264160
Since no one else responded;
Almost impossible to repair unless you can determine which specific wire goes where INSIDE the headphones themselves. Worse possible scenario is you fry the headphones.

>>1265108

this should get an award for dumbest reply ever to the dumbest question ever.

>unless you can determine which specific wire goes where INSIDE the headphones themselves

you have 4 wires and three terminal points. you can just hook them up at random and listen to the results to find the correct combo. takes 2 fucking minutes, at most.

>Worse possible scenario is you fry the headphones.

absolutely fucking impossible. there is no combo that can hurt the headphones or the music source.

How would /sqt/ cut a CRT bezel into 17mm ply? Pic related, though with an actual curve instead of the rendered flat bezel. I am better with metal than wood, so cutting a consistent curve like that seems like chaos wizardry to me. I don't even know where to start googling, and my first instinct is to get a narrow, hand held belt sander, and have at it. Should only take me about 12 attempts to get near where I need to be.

Halp?

>>1265154

Mathias Wandell of woodgears.ca wrote a program for creating posters from drawings, suitable for sticking to wood so you can cut it out exactly with a jigsaw or bandsaw. find the software, and look for his video explaining how to use it.

as for adding a bevel, that's why allah invented routers.

>>1265154

Mathias Wandell of woodgears.ca wrote a program (bigprint) for creating posters from drawings, suitable for sticking to wood so you can cut it out exactly with a jigsaw or bandsaw. find the software, and look for his video explaining how to use it.

as for adding a bevel, that's why allah invented routers.

>>1265156
Ignore the 45's on the corners, they are a snap with a jigsaw and a straight edge. It's specifically the curves I'm worried about. And if Allah can routers, then how does he into corners? These by no means follow a generic, straight edge, the corners bite in far more than the spans.. I mean, I'll do it with a router and deal if I have to, but it would be of detriment to the overall A E S T H E T I C I am shooting for is all. Have seen Mathias namechecked before though, will go suss him out for the templates. They will still be of use elsewhere.

>>1265157
Ignore the 45's on the corners, they are a snap with a jigsaw and a straight edge. It's specifically the curves I'm worried about. And if Allah can routers, then how does he into corners? These by no means follow a generic, straight edge, the corners bite in far more than the spans.. I mean, I'll do it with a router and deal if I have to, but it would be of detriment to the overall A E S T H E T I C I am shooting for is all. Have seen Mathias namechecked before though, will go suss him out for the templates. They will still be of use elsewhere.

> EDIT; Fix reply:to ID

How do I fix this? What do I use to glue the pieces back down?

>>1265184
You remove the rest of the damaged tile, clean up any adhesive that's left, and then put a replacement in with tile adhesive suitable for use with your sub-floor.

>>1264838
Use a board instead of tire

>>1265184

replacing a tile can be overwhelming for some girly boys, particularly coz you're not gonna find an exact replacement unless the tile guy left a few spares behind. so, an (uglier) alternative is to scrape off some of the glue underneath with a chisel, then apply some of pic related and stick it back on.

>>1265184

replacing a tile can be overwhelming for some girly boys, particularly coz you're not gonna find an exact replacement unless the tile guy left a few spares behind. so, an (uglier) alternative is to scrape off some of the glue underneath with a chisel, then apply some of pic related and stick it back on.

if the result looks crap, just pull it all out, wash the adhesive before it dries, and go to plan B.

Do disposable cameras still exist? Now that everyone has a camera-equipped smartphone, where do I go for cheap sources of malleable plastic, free small electronic bits, and piles of cheap, small lenses?

I don't have a question, really.
But I just saw this on /sci/, and thought I'd share.
(The thread there is unrelated, btw.)

>>1265336
I would be intensely afraid of breaking my pot lids on those metal bars.

Also I just store my pot lids on my pots, and store my pots on my stove. I only actually own one pot and one pan.

Also please return to deddit with your "lul I juss saw dis i hope u liek it :)" posting. if you think something is so interesting, post it in a more relevant thread, or even make an entire new thread for the topic.

>>1265349
>even make an entire new thread for the topic.

>>1265336
yeah, stop shitting up the fabolously factual and olways ontopics SQT with your handy and practical tips shieeet. You've made poor >>1265349 intensly afraid now.

>>1265358
you have to go back.

>>1263355
I was a retard and made my treadmill run too fast so it shut itself off mid run.

The flashing light on the circuit board indicates that the console is sending a signal greater than 0.0 mph so only DC is going to the motor.

The console doesnt light up at all but everything is getting a signal and there are no apparent burnt lines or broken solders. I saw some sights say check the fuses but there's no fuses.

Any clue?

>>1265336

ikea makes a similar item. i have one for lids in my kitchen cabinet door, and another in the toilet for reading material. i love 'em. (pic is similar to but not the ikea one.)

>>1265290
>Do disposable cameras still exist?

seems the /diy/ sticky says something about ''google it first''

>>1265460
well obviously they still exist but I mean do they get bought in a significant enough quantity that I can go into a pharmacy, ask for their old ones, and have them say "YES PLEASE THEY TAKE UP SO MUCH SPACE WE DONT EVEN CARE THAT YOURE OBVIOUSLY DOING TERRORISM WITH THESE" like you could 10ish years ago

>>1265290
>Do disposable cameras still exist?
Maybe.
But buyer beware: they cost FAR more to develop than the original cost of the camera.

>>1265487
lot have processing cost included in camera price. If not, probably around $5 to develop the film, maybe 15-20c per print. or another $5 for a CD. YMMV.

Can I use a power drill as a dremel? Will I destroy the drill or bit or myself?

>>1265493
>>1265487
I don't want the camera you nimrod, I have a phone like everyone else and would just buy a proper digital camera if I want something non-shit.

I just want the cheap lenses and random electrical crap off the boards.

Years ago you used to be able to go to a pharmacy and ask for their spent, filmless cameras and usually they'd just give them to you since they just get thrown away otherwise. I was asking if people still buy enough of these things that this is still the case.

>>1265496
The RPM is a lot lower on the drill so usually the tools designed for 10 times the speed will not work as well, but they should work to some extent.

>>1265503
Basically I want to cut a long channel out of some wood and not take a million years doing it. I have to start buying tools, and I figured I may as well start with a drill because then I can actually put pilot holes in stuff but I'm wondering what else can be done with a nice old corded drill.

>>1265506
There are wood cutting attachments for drills, but what you need for that channel cutting is a router with a router bit. The drill can again do that in theory, but the problem is that you won't be able to fix it to the surface in any way, depth and positioning of the channel will be messy. What exactly are the dimensions of the channel?

>>1265513
>What exactly are the dimensions of the channel?
It's a replacement stock for my air rifle, so "about a half inch or some shit I dunno" by "lots"

all ive got so far is a dollar store hacksaw, a dollar store file, and really thats about it other than normal tools that even normies have like screwdrivers and a random awl etc

why are tools so fucking expensive

>>1265523
Tools aren't that expensive for the most, you just need a big variety of them, all specific to certain work. However, for that job I think your best bet would be a chisel along with learning how to use chisels.
A router would be way faster and easier, but they do cost about $50 for a cheap one, so unless you know someone with a router, chisel's the cheapest solution. Also a dremel would be complete shit for this.

>>1265533
chisels are like 25 bucks a pop though

How can I open up and clean the inside of this sink? (pic related)

There's no screw in the center - instead the plug goes in there.

It's draining slow and shitty, I've removed, cleaned, and reassembled the drain pipes, but that hasn't helped - you can even see muck inside in the picture.

Drain cleaner didn't do shit (don't know why I even hoped it would).

So how do I disassemble this without breaking anything?

(It's a rental flat in another country - I'm not a plumbsmen on the best of days, I do woodworking and homebrewing and such)

>>1265622
Wait, hory shit, is that a hex in the centre?

Never would have seen that, ever, without taking a closeup with flash for posting here.

So nevermind, I guess?

Can I replace the thermocouple on my hot water heater without turning off the gas line to it?

>>1265154
Get a sheet of hardboard/plywood to use as a template. Cuto out template, dont worry about bevels, just make it perfect. Take the piece you're gonna use and get it close, flush cut it with router to template. File bevels with power file, rasp, sandpaper, etc.

Guess I'll post here and repost if I get no answer before it 404's

Im looking to see if there are any low psi rotary tools I can get.

I have 2 compressors, one powerful one for the garage that will work with a normal one but is loud as fuck, and one airbrush one that is relatively silent. I want to work inside if possible so if there is a way to use my airbrush compressor for a rotary tool or a rotary tool made to work with one, that would be perfect.

Im making a structured light scanner without a projector.
I wonder if i can create a static light pattern like pic related with a mask or something. Anyone expert in optics?

>>1263355
anyone have any suggestions for a good inexpensive torque wrench?

>>1265709
i have a $30 tekton 24330 3/8dr. for the price it can't be anything other than cheap shit but it feels solid and works. i have no idea if it's accurate. i don't think it matters honestly, the parts i design at work all have to function with half to double the nominal torque.

>>1263590
>>1264106
>>1264059
im not any of you anons but the amount of energy stored in batteries is astounding. fast forward to 2:45 for the action

https://youtu.be/Uex_O2TtTDw

Here is one for you. I was going through my attic and found an old BSR record player. After reviving the record player with solvent, and new lithium grease. (apparently the shit grease they used in the 60s/70s becomes like glue after 30 years), the record player works, and old analog records sound really nice on my analog based amplifier.

The problem with the record player is that the particle board base is falling apart. I found a chunk of butcher block in the Salvation Army store for $2.50 from an old cutting board. ( i can sanitize and sand away the cuts and stains).


My stupid question: If I cut the butcher block in the middle to allow the innards of the record player to fit and sit, would the butcher block fall apart?

Since we all know what butcher block looks like, I've decided to show a base of a record player from back then. If I cut into the BB and make a space for the mechanical stuff, would I have any problems?

I'm looking for a light weight, mirror-likem reflective material or coating. This is for hobby purposes, fine scale.

There are 1/16in (1.5mm) acrylic panels available though I find them to be too heavy. There is also space blanket mylar but its just not reflective enough.

Rigid or flexible, it doesn't matter. If its an panel I would need 1mm max thickness.

How do I into space age reflective materials?

>>1265795
Look into mirror/chrome finish vinyl sheets. They are used in the automobile customisation field to mimic the look of chrome. They come in a roll and tend to be about 3 mils in thickness and are self adhesive. I used some to create a reflective backing for a lampshade.

https://www.amazon.com/gp/product/B00L9J5DTE/

>>1265783
It depends on how the butcherblock was put together. You might, you might not. If it is properly glued together along all of its joints then it should hold up.

>>1265783
The joints are generally stronger than the wood, but of course YMMV.

>>1265502
>Years ago you used to be able to go to a pharmacy and ask for their spent, filmless cameras and usually they'd just give them to you since they just get thrown away otherwise. I was asking if people still buy enough of these things that this is still the case.
Why don't you just ask at the closest pharmacy that does development? I'm sure if you're in NYC you'll find plenty, but anywhere else, who knows.

What do you even get from a spent camera that you want anyway? What do you use lenses for? I remember I used to love playing with the flash as a kid though.

I want to make a simple circuit with a buzzer, a 9v battery and a button. But the thing is, i want the buzzer to actually stop making noise when the button is pressed. How would i go about doing that?

>>1265894
Use a "Press to break" button.

>>1265894
>>1265937
Usually called NC, normally-closed.

What are my options, if any, when it comes to trying to lighten cherry? Is there any way I can take away the reddish hue?

Is it possible to make electric motors run given some tone from audio tape? No MC involved, rather by taking voltage, maybe?
I'm bad with physics and I don't understand what I can do from magnetic field recorded on tape.

>>1266014
google wood bleaching
even some on youtube

>>1266039
>Is it possible to make electric motors run given some tone from audio tape?
Get a tape player, run the audio line to some kind of amp, and uhhhh use a motor instead of a speaker driver

Can you make a wood whistle that has the exit hole on the side instead and work fine? Given the way a whistle works, I don't think it will unless the interior is maybe a spiral or a simple angle towards the side exit hole to direct the air.

>>1266269
I want to operate different motors.
Let's say, 1000 Hz tone must run motor #1, 2000 Hz tone must run motor #2...
Is it any possible?

Since /biz/ is pretty much a meme coin board and this is kind of related to /diy/ I decided to post my idea here. I'm in school to become a lineman but I need to make some money, minimum wage jobs won't work around my school and the one I had was paying me 3.50~ after taxes/gas expenses and effecting school too much. I live in a super small town/area so there's not many opportunities. That was probably tmi but I was wondering if I was completely retarded for thinking about going door to door to clean people's gutters out for 15-20$? Also posting a paper with my number at the local post office. It's about fall so I figured some people would be needing it. I own a ladder and was just planning on cleaning shit out and throwing it into a bucket then bagging and disposing by burning on my buddies property. Any advice anons? I plan on researching methods and shit about gutters.

>>1266272
as long as you have a reed with air going past it you can make noise

>a whistle, but sideways
youve basically just described a normal flute

>>1266275
wizardry involving high and low bypass filters would do it but at that point.

this would basically be pic related like you see on audio setups and in software music players, but instead of the output going to a series of light strips, it's a series of motors

signal gets past filter, goes to rest of circuit that drives that frequency band's motor

>>1266306
its nopt 1960 anymore, people dont trust kids going door to door offering to do small tasks. theyll probably call the cops and then call Orkin or whoever instead now that youve given them the idea to get that task done

>>1266309
>tfw no job opportunities for next 7 months

>>1266275
35mm slide projectors used to use a sub-audible control tape signal to trigger a trac, tell it to move it onto the next slide (or fade if two projectors) - soundtrack could be recorded over top, cant find a decent info link tho.

(rest is similar to >>1266309 just said, had already typed this shit ;)
Maybe easiest, from principle here, be a sound to light controller:
https://quasarelectronics.co.uk/Item/smart-kit-1132-super-3-channel-music-to-light-effect-230vac-mains
thats a kit example, fairly randomly chosen, as description shows its triggering 3 channles at 3 different frequencies:
Filter frequency responses
LOW: 10 Hz - 160 Hz
MIDDLE: 350 Hz - 850 Hz
HIGH: 1.8 kHz - 12 kHz
so, take a line out from your tape player, feed to sound-to-light circuit, and (sticking to those frequencies), you got three channels.

Problem, that wont drive inductive loads (motors are usually inductive) more expensive model might, or will output 0-10v control, from which you can trigger relays, etc. Just as an approach idea, dunno how much you want to invent/build, but you could custom build your own, idk how you could use magentic signal stored on the tape directly without converting to audio etc. - but, theres a probably a way of doing that as well.

I want a 4-way solenoid valve that can hold a vacuum on one side. Is there anything in particular I should be looking for, like keywords or brands, or will any old 4-way solenoid valve work? Any other sort of non-solenoid electric valve would work too I guess, but I'm assuming those don't exist. Compactness and weight are also important factors. Thanks.

How do I make this?

>>1266491
what kind of vacuum? microns? torr? material contamination?

>>1266309
>this would basically be pic related like you see on audio setups and in software music players
Did you forget the pic?

Hey DIYer, quick question here that deserves no thread; What's a good way to make a smallish vibrating table to move air bubbles from casting molds? Most of the vibrating motors I see for purchase are either for your iPhone or Industrial Cement Plants. Thanks.

>>1266573
Try a vibratory case tumbler that reloaders would use. They aren't that expensive, $30-$50 for a cheap one that you could tear apart for the motor.

>>1266574
Oh shit, decent idea. Thanks m8.

>>1263590
You sure can anon. Get on google and youtube. Get a multimeter and a good spot welder and go nuts. If nothibg else she can resell it for more that way and just get a normal shitbox that get ls over 40mpg

how do i get started on doing wood working shit on a college campus, i just wanna make my standing desk, but have no tools

>>1266584
Does said college have a woodworking course? Perhaps you can take that class and do it during.

I saw a thread on here a week or two ago about preserving fruits, vegetables, etc. They said you can reuse the jar but you have to replace the lid? The lid is in two parts, the flat part and the ring, and I thought you had to replace one of those two things but not both when you're reusing.

Which part do you have to replace?

I'm trying to make a drinking glass from a jar. What is the best way to make the edge smooth?

>>1266680
Try a low grit sandpaper and progressively get to higher grits

I'm looking for a water pump for a cooling loop. What is this?

If I sharpen a knife by only doing one side of the edge, will it produce worse enough of a result than working on both sides of the bevel that I shouldn't sharpen this way?

I just find working on the opposite side of the knife awkward and unsafe-feeling. It's just a normal kitchen knife.

>>1266680
>not just drinking from the jar normally
wtf?

>>1266749
>If I sharpen a knife by only doing one side of the edge, will it produce worse enough of a result than working on both sides of the bevel that I shouldn't sharpen this way?
Yes. You'll make it lop-sided.

>>1264927

That's an oil stone, water will not hurt it but it will not help, if you have used it scrub it clean under running water with a brush and let it dry. Once dry soak it in honing oil over night the store it wrapped in a cloth, apply abit of honing oil when ever you use it. If it sits unused for awhile it may need a resoak, generally an hour or two is plenty to refresh it.

These cheap oil stones are under rated since most people do not seen to know that you need to give them a soak before use or they just clog and fail. Work just fine for a stone you can toss in the tool box or junk drawer and not worry about breaking it.

>>1266677
Im guessing probably the ring as it probably wouldbe as tight when reusing. No idea why you couldnt reuse the flat part.

>>1266738
it can deliver 0.85 Bar 9 meters up

long live the numbers! 8 G

qes

dIY

>>1263355
Sup, shit birds?

Building a side table from a salvaged marble top and 1" square tubing.

Built a frame, but racking my brains at to how to keep it from falling through.

Welding 1" joists seems over the top. Was going to do that and utilize them for a cabinet, but that's too top heavy.

Pic related - just need that and legs.

>>1266573

>>1266677
>Which part do you have to replace?
The flat part - the lid
The sealing gasket is part of the lid.
The ring in reusable.

>>1266773
This doesn't really mean much to me. What's wrong with it being lop-sided?

I meant, will the cutting power suffer, will it be unsafe to use, will the edge dull faster, etc.?

do cheaper plastic coolers generally have a filled core or just an airgap? i have pic related (30 bucks at sams, qualifies as pretty cheap imo) and i want to insulate it more and was thinking of poking a few holes and filling it with expanding foam. would this even be effective? is there a better way? i dont want to put styrofoam inside the cooler or anything that would decrease the internal volume. it also needs to stay portable so no duct taping insulation to the outside.

>>1263355
Is there such a thing as a tool for digging that is personal-sized? Say the size of 2 jackhammers? Or is the gap Shovel ----> mini excavator

Looking to start digging out underneath my deck and I have anywhere from 7ft in height all the way down to 1ft, and the path to get to that part of the property is too difficult for an excavator.

It will dull faster and not cut down straight in some foods.

Single bevels have uses but not many in the kitchen. There are some things it would excell at but unless all you do with your knife is chop greens the double bevel is far superior.

If you do not feel comfortable doing both sides by hand, just get a knife sharpener, some of them do quite well and almost all of them will leave your knife cutting better then it would with a single bevel.

>>1266927
Shovels are terrible for digging, they are for moving dirt.

You want a pick or grub hoe or a spade for digging. And a dig bar. or some combination of those, and a shovel for moving the dirt when you're done digging.

>>1266926
They are already filled with insulation. Usually, some form of polystyrene but older ones were sometimes filled with fiberglass and an air gap on the interior side. We're talking old as balls here though. Like all metal Skotch Koolers from the 50s and shit. Once coolers standard to have a bunch of plastic in them the rigid insulation became the norm. Really though, unless you are getting a Yeti or something like that they all have about the same cooling performance. The only thing really different is things like build quality and materials. In cheaper models the seals won't be as tight, the plastic not as thick (less durable), the hinges will probably break, and it is almost certain to oxidize and turn brownish after a while.

>>1266926
Have a cooler like that, just took it on vacation last month. It still had ice in it after three days of use. Without knowing how long you need it to be used for, the only thing I can say is get block ice instead of cubes, that will probably go at least 4 days, possibly 5 or 6.

>>1266933
thx, now to figure out how dig into a hillside without undermining structural integrity

>>1266498
Down to a couple of mBar or so. It's for gas flow of inert gas and air in/out of a vacuum chamber for testing vacuum tube concepts, so the flow rate really doesn't have to be that high, probably no more than a gallon or two per minute. I want electric so I can more precisely alter the gas composition/pressure, and for the cool automation factor.

For halloween, I'm making a paper mache globe using the classic kids' "put strips over a balloon" method. It's gotten wrinkly on the outside, though. What's a good material to paint over it that can be smoothed and fill in those wrinkles? I'm satisfied with how robust it is, and I can reinforce the inside later; it only has to last a night or two anyway. The surface is just very uneven.

>>1266908
>will the cutting power suffer
Considerably.

>will the edge dull faster
Yes, and it will be more fragile to boot. Knives that are intended for single-bevel grinds are made from very hard steel to compensate for having such a thin edge and an edge that thin on a knife made of softer steel will deform extremely quickly.

>>1266956
>an edge that thin on a knife made of softer steel will deform extremely quickly.
I don't get it. If the angle is still the same, but just canted by being single-bevel, why would it dull faster?

I'll be honest, I don't know shit about knives, you gotta spoon feed me. Treat me like the kid in the (((passover))) book who doesn't know how to ask a question.

>>1266955
You could just sand it down, or just go for a half dozen layers more of PVA. A thick exterior house paint would probably do the job.

>>1266584
Woodworking in an apartment is doable. Woodworking out of a dorm is really not unless you have a huge dorm or don't mind most of your room taken up by tools and lumber with you working outside. You also have to buy kiln-dried or reclaim wood exclusively as you have no place to dry wood.

>>1266850
You have several options. All of these orange ideas should be positioned below the edge enough for the top to be flush with the tubing.

Note that the legs I drew on are purely for demonstrative purposes. You will need to properly design those to handle the weight of the top + whatever is on it.

>>1266962
You can find them. They're ususally expensive. Look for "single grind" or "single bevel" knives. Modifying a standard chef's knife won't work usually as the blade geometry up to the spine is not going to be completely flat on one side and so you'll end up with fucked up cuts and struggle.

>>1266999
>the blade geometry up to the spine is not going to be completely flat on one side and so you'll end up with fucked up cuts and struggle.
I'm understanding this as that the knife is probably not straight in some dimension, so then why wouldn't it fuck up cuts with a bevel on both sides?

>>1266995
Thanks - I guess my main concern is concealing the tube's hole. Would you recommend 1" tubing for this 'platform', or could flat bar stock suffice?

I was drunkenly staring at it for awhile last night and am leaning towards a diamond.

Thoughts? does it look safe enough?

>>1266962
>I don't get it. If the angle is still the same,
If you're holding it at the proper 10 degree sharpening angle it will be 10 degrees.
When you flip it over and hold it at the same angle the finished bevel will be 20 degrees.

>>1267021
Well that explanation implies that you're grinding the same angle to the normal of the blade, not the same inclusive angle. With the same depth of bevel and same knife thickness, the cross-sectional area of the two knives will be identical. Assuming you're at liberty to grind the knife to that geometry in the first place.

>>1267003
The edge is centered normally. You cut the same direction it "points". If it's canted off to the side you have to twist your wrist a bit to cut straight, which the handle is not designed to accommodate. Hence "fucked up cuts and struggle."

Would I be able to make a blowtorch run on used, filtered cooking oil? I don't have the space to make biodiesel.

I also want to make narrow cutters for homemade wood cutting/planing tools. Would it be viable to use shitty (Clearance bin, garage sale made-in-china, HF, dollar store) wrenches as cheap tool steel to grind/file into shape? Is removing any chromed coating going to fuck me up?

Retarded question time:
I want to replace a mechanical push button on a chip with an arduino. The button works by grounding a pin.
Can I use a digital pin, give a "high" signal to the pin and "LOW" to simulate a button press? Or do I need to use transistors?
(I'd run a dfplayer mini at 5V and the digital pins at 5V high. )

What is this plant

>>1267049
>I want to replace a mechanical push button on a chip with an arduino.

Please restate this without using the word "chip", since chips pretty much never have pushbuttons.

>>1267027
Okay, I see now.

I've been using it for a day and the difference didn't seem that meaningful, but I guess I'll try to find a comfortable way to confidently sharpen the other side.

>>1266903
Hmm, interesting. I am not very good at hooking up wires to motors so it might take some doing. Thanks!

>>1267055
Looks like Dill to be honest with you family.

>>1267061
The chip's pin is connected to a push button therefore the push button is "on the chip"

>>1267068
Not it. Nothing grows on this plant.

>>1266962
>I don't get it. If the angle is still the same, but just canted by being single-bevel, why would it dull faster?
Knives dull when the edge deforms and rolls over on itself, and for steels of the same hardness subjected to the same amount of pressure, a thin piece will deform more quickly than a thicker piece. When you only sharpen one side of a knife, you're only removing metal from one side and the edge becomes thinner and thus more easily deformed. This is also why single-bevel knives are made of harder steel than dual-bevel knives - the hardness of the steel means that you can maintain a thinner edge longer. The trade-off for this, of course, is that the edge becomes more brittle - something that would chip the edge of a hard, thin blade might just dull a softer blade.

>>1267155
Single bevel knives are supposedly more durable as long as they were designed to be single-bevel. They aren't thinner than a double bevel knife, they simply provide a different surface to the cut material, hence the use in sashimi. Axes are the same: a single bevel axe is not weaker than a double bevel axe, but both are for different purposes.

You only get a stupidly thin knife if the blade was not designed to have just one bevel, as knives often have the spine on an angle (or in compounding angles, depending on the grind) all the way to the edge.

Also a disadvantage to a single-bevel knife is that they are not ambidextrous.

How can I reinforce a cord made by weaving a simple cotton sewing thread, so that it would last longer?

I think if I paint it with paper glue it will become stiff and unpleasant, but I want it to be wearable around the neck.

How would one go about keeping spray paint on a shirt while washing?

>>1266995
Went with your third idea (corners) with 1.5" bar stock.

My diamond idea was too painful with the greater than 45 degree angles.

Now I just need it to fit again ...

>>1267364
Nice left-hand workbench

>>1263355
Anyone know a good source for salvaging air compressors that can run at 1000 psi or more?

I pulled these cameras out of my broken moto x. Is there any way to reuse these? Is there a good resource (my google searches didn't uncover anything relevant) for looking up model numbers to see what ports these use/are?

>>1265126
>dumbest question in a stupid question thread
>insult the guy who tries to help when no one else does
congratz bro, you win the ass award

>>1267433

bullshit! i gave the guy a 2-minute solution to a problem he'd been asking for for over 24 hours. and corrected some serious disinformation by the other dude. i should get a fucking medal for straightening out 2 imbeciles in one post!

>>1267433

bullshit! i gave the guy a 2-minute solution to a problem he'd been asking about for over 24 hours, (and whom i'd already helped before). and i corrected some serious disinformation by the other dude.
so, i should get a fucking medal for straightening out 2 imbeciles in one post!

>>1267433

bullshit! i gave the guy a 2-minute solution to a problem he'd been asking about for over 24 hours, (and whom i'd already helped before). and i corrected some serious disinformation by the other dude.

so, i should get a fucking medal for straightening out 2 imbeciles in one post!
and now a third imbecile with this post.

>>1267433

bullshit! i gave the guy a 2-minute solution to a problem he'd been asking about for over 24 hours, (and whom i'd already helped before). and i corrected some serious disinformation by the other dude.

so, i should get a fucking medal for straightening out 2 imbeciles in one post!
and now a third imbecile with this post. i deserve at least a scout's badge for helping the handicapped.

>>1267550
>>1267553
>>1267554
>>1267557
This is the only badge you're getting

I'm looking to use a 110VAC to 5V40A power supply (pic related) for an LED cube project. Some reviews say that these supplies output a fraction of the rated current on each 5V rail, would it be feasible/safe to join the positives and negatives of each rail into a single connection to make a single rail that outputs the rated current?

I want to start becoming a bit of a DIY jack of all trades, what would you recommend I start with, Electrics, Carpentry or Metalworking?

>>1267663
Electronics is the cheapest, but probably yields the least practical results beyond learning the basics. Not knowing the basics is on the other hand the biggest hindrance. Metalworking is the most expensive and most useful. Carpentry is also very cheap to get into, but there is a big creep for better quality tools and tools that make work faster.

>>1267663
Metalworking if you have flameproof space. Get a lathe first, as a lathe can help you fab many other things. You can also utilize junked items more readily than woodworkers, and if you get good you can make relatively precise items.

Woodworking if you want cheaper purchased materials and don't have a fireproof space. You can build most power tools for more precise work but it can get VERY expensive (see: matthias wandel's cave of autism)

You can then get into electrical after either and make different devices that combine electronics and physical without having to worry about paying someone else for big parts.

The true path though is to start out as going plasticworker and sell lightup cancer dildos to furries to fund other stuff.

I want to put up some bars for hanging clothes in my basement. There's an open corner of roughly 7 feet by 8 feet, my plan is to anchor some 2x4s to the ceiling joists somehow on either end of both walls and attach some steel rods at the top and middle of them. Any tips on how to do this? Anything I shouldn't do to hurt the structural integrity of the house (my gut says I should be fine but I dunno)? Not sure how much clothes will be hung up but are 2x4s sufficient or should I reinforce them?

>>1267918
Is this for drying them? I assume yes due to most laundry machines being in the basements. If so, this is a bad idea because you need more air movement to get it to work right. Just hang a clothesline outside. Put one pulley on a tree and one pully on your house and run the line.

If you're wanting to hang them to store instead of a closet, you can get these freestanding/mobile closets for fairly cheap from walmart, or go big and make an armoire/wardrobe.

>>1267029
Pls respond

>>1267937
It's for storing. I want something that can hang a shit ton of clothes for my girlfriend and I to get rid of a dresser or two. Most mobile closet kits I've seen seem pretty flimsy and I don't really want to spend the money on a wardrobe. My woodworking skills very novice tier and I don't have a whole lot of tools.

I'm thinking of hanging some chains from the joists too and attaching some metal rods that way, shit idea?

>>1267980
1" EMT (sold in 10' length) cut to fit between walls
pic related as required
(put one about every two - three feet)

>>1267994
filename should be 'closet rod support.jpg'

>>1267994
Much simpler solution, thanks. I feel dumb not thinking of that.

>>1267980
Make your girlfriend wardrobe for christmas, anon. If you don't half-ass it she'll like it more than the rods.

>>1267952
Why not? Grab a whatever (security bit set is kinda cool if you're degenerate) and pick that up too. Prolly won't carry much weight, but free is free.

>>1268030
Idk. Sounds like she has a love for lots of rods ...

>>1268086
>Prolly won't carry much weight
I got one for free too. It's actually very strong.
I'll be in the shop tomorrow. I check it's strength.

This is stupid but how do I open pic related I use it to kill flies by sprayin em and when they can fly crush em but it ran out and I have no more how do I oopen it to fill it with water

>>1263355
/g/ fag here, go easy
I need to use a switching psu for a project I'll be working on in the future. Going to power 3 TEC units off of it, it'll be wired to a controller before the TECs, (to turn them on/shut them off at the right temperature) so I dont need to worry about having too much control in terms of anything other than turning the unit on/off and powering it. my questions are:
how do I wire this up for power? like, how do I get power from the wall into it?
how do I add in a on/off switch? is there going to be somewhere in the psu I run a switch to, or would that just be inline with the power cable to the wall?
I'm talking about something like this - https://www.amazon.com/eTopxizu-Universal-Regulated-Switching-Computer/dp/B00D7CWSCG/ref=pd_sbs_23_1?_encoding=UTF8&pd_rd_i=B00D7CWSCG&pd_rd_r=5J7D5JDARMFFK66W6ZRA&pd_rd_w=XOwnw&pd_rd_wg=ONZ6A&psc=1&refRID=5J7D5JDARMFFK66W6ZRA

>>1268115
O hey would you look at that. Get a wall cable and cut the end off it, probably one of the dozen IEC cables we all have lying about. Alternatively, you can put a panel-mount IEC socket into the box you put this thing in (to avoid having live wires floating about of course). Screw the wires in, maybe with eye terminals or ferrules if you're feeling fancy. Some IEC sockets have a switch built in, and some have a fuse, so they might be your best bet, but if you want a switch somewhere else, you'll need to mount it on another box and screw it to your desk or something. Any wires going in/out of a project box (probably an ABS one if you're not going to make your own) should go through a strain-relief gland instead of just going through a raw hole, for obvious reasons. You might want to put a voltage+current meter on the front so you can see how close it is to running at full capacity, but it's not necessary.

You might not have to put it in a box, but I would, after taking the metal shroud off it (since there's no need for it inside the box) and ensuring there's good airflow. Ask other anons if they recommend a box, because it's certainly the way to go for strain relief and being able to use common plugs and such, but the electrocution risk is pretty low so long as it's out of the way.

Also thermoelectric coolers suck ass compared to compressors, though of course aren't as noisy. Watch that you don't drop that advantage with the PSU's fan.

>>1268147
>switch to another box
could I potentially build this in to a pc case? or does it have to be in a separate box of sorts for some reason. i dont see why it would
>voltage/current meter
actually a pretty cool idea I'll probably do that
>strain relief
easily done. drill/cut hole in case, line hole with something not sharp and metal (electric tape, gasket(?), whatever) and hopefully some kind of strain relief on the cable itself
>i would put it in a box
ideally it gets mounted in a standard 5.25 bay at the front of the computer case, everything should ideally be internal. I may mount it in a small wood enclosure of sorts and that would let me stick a larger, slower, and therefore quieter fan on it
>TECs suck compared to compression
i know, but using them to cool PC components is a little more straight forward, and pc hardware works easily with them, and there is more documentation, even though there isn't a ton for either. the other advantage is that its a lot smaller of a system from what I've seen, which is really important as everything needs to fit in the case
here's a quick and dirty mockup of what things would look like, any reason that wouldn't work?

>>1268108
It's a pressurized aerosol container - I suggest you don't open it.

>>1268108
Drill a hole in it, wear eye protection or operate behind a shield in case the propellant goes bang.

>>1268176
If it's empty, it's no longer pressurized. He'll be fine.

>>1268193
>He'll be fine.
>>1268108
>open it to fill it with water
He expects to put water in it to spray flies.
He'll never be fine.

>>1268154
>could I potentially build this in to a pc case?
Oh definitely! I would keep the metal shroud on it in this case though. That solves the safety problem, and already has an IEC socket in it. If you use the existing socket, or put one in, you don't need strain relief on the input cable, and if the TECs are in there with it you don't need strain relief on the output either. Assuming the case already has computer bits in it running off the IEC socket then you might want to install a second one, though you may just be able to put a terminal block or some 3-way spade connectors (covered in electrical tape) to get power to both. For the switch you could probably put a hole in the case and put a panel-mount button in there, or use an existing button that you're not using. If you don't have access to a soldering iron you'll have to go for an automotive switch and crimp spade connectors onto things with pliers/your teeth.

>>1268258
I'd be running a second cable in there. And yeah there are plenty of good options for mounting aftermarket switches on/in cases. I've got a soldering iron so that wont be a problem! Thanks for the help, would have been a fools errand on /g/, those guys have 0 knowledge outside of consumer computer products, god forbid electronics.

>>1266495
Plywood, circular saw, jig saw, glue, finish nails, a dowel, screws to mount to wall

>>1265630
Removing the thermocouple will shut off the pilot and the gas for you (the point of it lol) then you can replace it and start your pilot as usual

Thinking of notching out one side of 1.5" square tubing to accommodate a sink mounting bracket. Is there a better way?

Is it going to lose all its structural integrity and kill me?

Pic semi related and I could use an answer - bout to do it bros.

>>1268347
Shameless bump - this time with a real pic.

>>1263355
My computer stuff keeps shocking me when I touch it so I got a multimeter to check the socket. Hot to neutral is 120V, hot to ground is 60V and neutral to ground is 60V. Other outlets on the same breaker read the same, but outlets on different breakers read 120V hot/neutral and hot/ground and 0V neutral/ground.

What do? The internet says its a ghost voltage but that doesn't explain the shocks.

>>1268353
>that doesn't explain the shocks.
The case on your computer is connected to the 'ground' pin on the outlet. (60vac)
You provide a path to earth-ground when you touch the case.
Have someone who knows more about it than you take a look at it.

What's the best way to decontaminate a plastic trash bin which has had rotten food in the bottom of it?

Soap and boiling water got rid of most of the visible residue but I can't seem to get the odour out.

I've got most domestic cleaning chemicals available. Should I use bleach? Vinager? Methylated spirits, turpentine maybe? I've even got some 100% sodium percarbonate that I use for cleaning brewing equipment or hydrochloric or sulfuric acid.

I'm not sure what standard council trash bins are made of, but I'm not keen on accidentally dissolving it.

>>1268367
Bleach should do it. I'm assuming it wont fit in a dishwasher?

>>1268383
Nah, it's a 60 gallon wheelie bin.

>>1268367
Use some home ozone generator.
https://inspectapedia.com/sickhouse/Ozone-Treatment-Warnings.php

>>1268367
AFAIK the smell is absorbed by the plastic and your stuck waiting untill it dissapates on it's own. It's not on the surface surface cleaners won't do shit.

>>1268392
Like just in the surface layer of plastic, or it seeps in.

I'm a fucking brainlet. I've been stuck on this circuit for 2 hours and I don't understand what I'm doing wrong.

What's parallel and what's in a series in this circuit? How do I even approach to simplifying this circuit? Man I am confused.

>>1268409
R6 and R5 are in parallel. Which are in series with R3 and R4. The whole combination is in parallel with R7. And this combo is in series with R1 and R2.
Start from the right side, substitute R6 and R5 with a single resistor of correct value and so on until you have one resistor left.

>>1268409
I don't know what kind of task I'm looking at, but unless any specific resistor needs to be static, I think they can all be added together and cut down to a single 17.5ohm resistor.
(R5+R6)=6.15
R3+6+R4= 26
(R7+26)=9.5
R1+9.5+R2=17.5

() for parallel

>>1268419
>>1268420
OH GOD DAMN IT. I didn't copy R_7.
Thank you for your help! (Man do I feel stupid)

I managed to solve it with the R7 in it, but this begs the question what would happen if R_7 wasn't there? Like in the picture I posted.

Does it just shortcircuit? Would the total resistance just be R1+R2? (so 8ohm)

>>1268429
Shit. Forgot to post picture, sorry.

>>1268401
It seeps in.

>>1268430
8, rest is irrelevant

>>1268441
Yeah I figured, thanks!

>>1268350
Didn't even account for the incoming water.

Gotta notch out the faucet too.

What do I need to drill a 32mm hole in thin stainless steel plate?

>>1268600
a 1 1/4" hole saw, slow hand drill, oil

or one of these step drills
https://www.ebay.com/itm/NEW-1-4-to-1-3-8-Step-Drill-Bit-Cobalt-M42-Reamer-UNIBIT-Lifetime-Warranty-USA/331828963063?hash=item4d428c26f7:g:w9sAAOSwgApXC3YQ

>>1268608
I tried a hole saw, but the centre drill wouldn't penetrate the steel, it just blunted itself.

Should I be using an abrasive hole saw?

>>1268622
>it just blunted itself.
you may have gone too fast too hot and work hardened the stainless, or the center drill was dull to begin with

maybe sharpen the bit with a grinder or grind a dimple where you can try drilling again

>>1266947
Bump.

>>1268627
Problem solved. Bought a new less shitty (bi-metal) hole saw, with some oil and slow speed it sliced through stainless steel like butter.

Game to move around sentences and paragraph/s to make different story lines Rubik’s cube that has different stories or even sentences on each suffuse to create different /types of stories or thoughts about a subject with interchangeable Lago type blocks no some smart ass will say it’s a bad idea because they didn’t think off it no they can have the idea if they think that it will make anyone smarter because let’s face it someone smarter is an all-around fucking loss maybe just certain people could play the game surreally it wouldn’t be Bill Gates or not Norma June Rothschild they are not privy to my information

what is this kind of bolt called? its for a truck toolbox and its what gets captured into the locking mechanism. its similar to how a car door latch works except its a bolt rather than a loop. searching for *toolbox brand* latch or lock or pin just ends up with either handles or locks and keys.

Anyone got a hot tip on how to prevent this shit when working with a drop saw? I have seen suggestions to place tape over your cut line to hold it down, but that only pulls up timber when I remove it.

>>1268770
>what is this kind of bolt called?
generically: shoulder bolt

>>1268778
>how to prevent this
very sharp, fine tooth blade - ease into cut

I've got some 102 year old screen windows that need to be repaired. The screens on all of them need to be replaced, but I'd also like to strip off the several layers of paint the previous owners slopped on there.

What's the best way to remove said old paint. Chemically? With heat? Odds are lead is present, I'll be doing this out in the workshop with some dust collection.

>>1268788
I'd try just a hand scraper first.

>>1268778
So not this then? Will head up hardware store and see what I can find, makes sense that the same rule applies here as with handsaw blades I guess.

>>1268788
I'd go chemical, it's an old frame, mechanical forces from wobbling around as you sand it will likely loosen the shit out of it. You could go full retard, totally disassemble, strip and rebuild, guaranteeing another 100 years of solid service (I would, may as well while it's off the frame and accessible), but that's up to you/your skills

>>1268797
> So not this then?
Sorry, meant to quote >>1268783, and cheers btw

>>1268796
Risks gouging the timber in the corners and nooks, and lifting grain on the rougher sections. I'd be very careful with a scraper if that was my only option.

>>1268796
>>1268797
>>1268798

I think I'm going to go somewhere between just stripping and a total rebuild. Most of the frames are in decent-ish condition, they've just been painted and repainted to death. Doesn't seem to be a lot of rot or anything.

I've got some on the back porch I can start with, that way if I screw them up too bad nobody will have to know about it except me.

The actual storm windows will need some work too, but that's going to have to wait until Spring since I need them now.

Any particular brand of paint stripper you like?

When it's cold the basement windows of my house get lots of condensation. I don't have the time or the finances to deal with the issues that are causing the moisture in the basement right now. What I want is some way of preventing the condensation from forming (DIY dehumidifier or sth) or a way of gathering the water from the glass without any help from me. Since the windows wooden the moisture really fucks with them. Thanks.

http://www.directindustry.com/prod/optosigma-corporation/product-55412-590598.html

so these deflecting prisms say they'll shift a laser 10 degrees, does that mean that if I stare through the flat end the view will be shifted? or does it just apply to lasers

Is PTFE fire resistant and electrically non-conductive? I assume it is. If not I just made a huge mistake.

>>1269226
It decomposes (explosively) at 200°C, but you should be fine.

>>1269213
Yes, they will deflect any light by 10°.

>>1268845
You essentially need a refrigerator of some kind, so thermoelectric or compressor run. I'd get an array of 10 or so TEC modules and two fans, to condense the water onto the cooled surfaces. Heating the windows themselves might also work.

>>1269257
If my wiring is at 200C I think I probably have more serious issues! Thanks.

I think that's around the same temp that PVC wire insulation fails.

Out of interest does PTFE burn, or melt?

>>1268845
If you don't need to see out the windows during the winter you could put insulation on the outside of the pane so it doesn't get cold and condense water on the inside.

If you want to get light in, you could cover the inside of the window with plastic (airtight as you can get it around the edges, but 1-3cm gap between plastic and the pane) and put some desiccant packs in the gap between the plastic and the window. This will create a pocket of dry air on the inside of the window.

You could also leave the window cracked open and use the plastic to keep the rest of the room from getting a draft. (air temp same on both sides of glass.

Or you could devise a way to heat the pane, either with air from your furnace, resistive wire, or maybe even usb heating pads taped to the window.

Dehumidifying the whole room is probably the least energy efficient way to do it.

>>1267055
Asparagus setaceus

Is it possible to make gloves that fit yourself so well that they don't have the fucking terrible "slide the fuck off of your fingers constantly and make shit hard to grab" problem?

>>1269356
The problem I have is that dishwashing gloves are too loose to properly fucking manipulate things, but reusable. Inspection gloves are disposable and fall the fuck apart, and also obviously pollute more often.

I need waterproof, inert gloves that will let me do work as a janitor, but I need to manipulate quick-connect fittings and other fingerlike activities.

>>1269357
Go for some tight-fitting latex gloves, provided they can handle the chemicals.

im having trouble finding a specific valve that I need
I'm looking for either a 3 way valve or a shut of valve (3 way would make this a lot easier) that is controlled electrically. Should be no larger than 1/2". The hang is that I need it to default to either the open or closed position when there is no power, rather than staying in whatever position it is in when power is removed due to the controller I'll be using. I've been googling for almost an hour now and I cant find anything

Hey guys, DIY vibrating table anon here. I think I nailed down which motor I will use, but I am confused by the power cord. Will I be able to plug it straight into my burger outlets (110)?

https://www.amazon.com/Vibrating-Massage-P-Tech-USA-CMC-6944/dp/B076T4S772

>>1263501
Can speak from experience that this works great

https://www.homedepot.com/p/Squeeeeek-No-More-Floor-Repair-Kit-19594/203429611

Anyone have any recommendations for a reliable leaf blower? Ideally with a mulching option for easy composting and gas powered.

I'm making a robot that has to squirt water at a target. What kind of pump do I need for this? Will any kind do, or are there certain types that are better for squirting rather than continuous operation?

My prototype so far has 12V and 5V buses, and a small water tank at atmospheric pressure. The water has to climb about 10cm and escape the nozzle at 10m/s.

>>1269500
Windscreen washer pump from basically any junkyard. 2 seater coupes (MX-5 Miatas, Capucinos, MR2s, etc.) tend to have smaller, neater pumps. The ones from subcompact Fords are pretty good too, and early Focuses.

>>1264375
Go to Sauna, get cousin Tunna and Riku to join, run in snow and beat each other with birch sticks.

>>1269500

for $15 you can get this, kill a lot of bugs, wash it out and fill it with water. I have one and it's like a battery powered water pistol. I don't know about the 10m/s but it easily shoots 10 cm up.

You could probably take it apart and adapt it to your system.

https://www.amazon.com/Johnson-10191500-RAID-MAX-BARRIER/dp/B00SPLK68W/ref=pd_sim_86_3?_encoding=UTF8&psc=1&refRID=B62W38QX8ARPCHN06234

it runs off of 2 AA batteries, meaning 3 volts.

>>1269502
Thanks I'll look into this

>>1269505
>10cm up
Hmm I need my squirt to reach targets 5m away, so it might be a bit underpowered. Maybe if I run it at 5V or even 12V, since it would only be for a couple of seconds at a time?

>>1269508
>Hmm I need my squirt to reach targets 5m away, so it might be a bit underpowered

I got the "10 cm" from your post. I'll test it for distance...

Looks like 2 or 3 meters, and at that distance it's not a stream anymore, so maybe it's not going to work. A nice stream at 5 meters is a pretty nice water gun.

>>1269511
>I got the "10 cm"
ah sorry, by that I meant that the nozzle is 10cm above the water tank.
I hadn't even considered the fact that after 5m the water would disperse though. I guess it'd be more of a water shotgun at that point... Any idea for what I could do to keep the stream that long? I was hoping to make it quite accurate. A small nozzle? That would have the additional advantage of reducing the work required from the pump

>>1269515
>Any idea for what I could do to keep the stream that long?

I'd try to get my hands on a SuperSoaker and see what's involved. It might simply be high pressure.

And yeah, nozzle geometry matters. We pressure wash houses, and there's a tip called a "zero" tip because the fan is supposedly zero degrees wide, and it will shoot a fairly tight stream quite a ways, but we're also talking about very high pressure.

If your system could build up pressure or energy somehow and dump it all at once, just firing one shot of water instead of a steady stream you might have better results.

Maybe use a mechanical spring or a compressed air tank that you "charge" up and then somehow release all that energy in propelling some water?

>>1269524
so perhaps a valve that only opens once a certain pressure threshold in the pipe is reached? Then the pump would stop and once the water is released the drop in pressure would make the valve close, ready for another shot. Would this not damage components though, since water is incompressible?

Anyway I was hoping to just have a water tank at atmospheric pressure and a simple pump to squirt the water out, because that seems like the simplest set-up. I might have to review it though.
Perhaps if I use the pump to pump air into the water tank and build up pressure there, then have an electronically-controlled valve close to the nozzle... I'd have to add a pressure sensor in the tank

>>1269527
>Would this not damage components though, since water is incompressible?

That's why you might have to store energy some other way and figure out how to quickly transfer it to some water.

Pumping air into the water reservoir has simplicity on its side. If you had two chambers it might work better: a water reservoir with a valve that allows a certain amount into the pneumatic chamber, which you then pump up with air, arranged so that the water gets pushed out first.

It's the same as a tiny battery charging up a capacitor to thousands of volts and then firing a flash. Doing it with the tools and equipment available to you is the challenge, but if you pull it off it will make any ordinary pump technique pale in comparison.

>>1269533
>a water reservoir with a valve that allows a certain amount into the pneumatic chamber, which you then pump up with air, arranged so that the water gets pushed out first.
Kinda sounds like a human heart heh. Thanks for the ideas though.

>>1269538
>Thanks for the ideas though.

No problem. This looks like a fun project, and the more I think about it, a single chamber might actually work better in that your air pump could run continuously, or as long as needed, and you occasionally open a valve to shoot some water out through a well designed tip.

You might want to check the price on a zero tip for pressure washers, as they are designed for what you want. They fit into an adapter that has standard pipe threads so that might help. Or if you know any painters or house washers they might loan you one.

Good luck and post your progress.

>>1269541
How big is this zero tip thing? The inner diameter of the "gun barrel" is currently 8mm

>>1269459
>Will I be able to plug it straight into my burger outlets (110)?
No. The motor is 24VDC
US outlets are 120VAC
It will die immediately.
You need a 24VDC wall wart to operate the motor.
Any 24VDC power supply/wall wart that can supply 1/3A or more will work.

>>1269547

it's a lot larger than 8 mm. the zero tip is the red one in this pic, and the stainless steel part is probably about the same diameter as your pinkie finger, and the adapter it snaps into is a lot larger.

However, the hole in it is probably 1 mm or so.

So scratch that. I'm not sure if there's anything magical about it anyway; it might be simply a hole, and you can experiment with drill sizes to optimize the end of your barrel. I'm assuming the opening will be a lot less than 8 mm, which I believe is way to huge to shoot a jet of water 5 m, unless you have super high pressure.

>>1269568
Yeah i guess any sort of nozzle with the right hole size will do. Time to do some calculations i guess

>>1269492
In all seriousness this one works great. Check the reviews, it's highly rated. I've used mine for years now with no issue, and the mulch function works great as well.

https://m.harborfreight.com/3-in-1-electric-blower-vacuum-mulcher-62337.html

>>1269492
>>1269631
>and gas powered

Crap missed that last part, my bad

Hi, guys! How to create an external antenna for a mobile phone? What shape, size and material to choose?

So the micro USB b connector in my keyboard broke off. How hard is it to solder it back on? Can I just put some solder over all the pins or will I have to solder each pin to its spot specifically. With none of the solder touching a another pin?

im trying connect copper pipes with sharkbite

i cant use the deburr tool. just dont have enough space to get it in there - is their a smaller tool i can buy to do this?

what do these symbols represent in electrical?
im guessing 342 is a speaker, what about

>>1269739
I'd solder a new one on. If you use a piece or two of Al-foil you might be able to prevent the solder from flowing onto other pins, provided everything is cleaned and well fluxed. The old one will have broken pins and won't be easy, and new ones will cost next to nothing online. You could try to solder a USB-B on it instead, it might be easier, provided it fits.

>>1269816
Why would I use aluminum foil? Isn't it still conductive and defeat the purpose of it I have spill over?

>>1269842
The point of aluminium foil is that solder doesn't wet it and it's particularly thin, so you can use it to make a wall or two between the pins if you're afraid of the solder connecting them together. Once you're done it should just slip out, like what the dentists use between your teeth in you need multiple fillings at once.

>>1269759
link to whole circuit?

>>1263355
The reasoning should be obvious

is there any easy to use/apply chair oil.
wd40 sucks dick and most oil i come across is messy as hell for a carpeted floor.

>>1269884
Chair oil? Like for finishing a wooden chair? Or for fixing a squeaky office chair? I hope it's the second. You could try a grease of some kind, I think that's what they come with.

>>1269890
squeeky chair

any recommendations or what I need to use because god damn none of the grease options I have seen are able to be applied to what squeaks in a chair.

just want this thing better than the ever 3 days wd40 or the 2 weeks till it's unbearable again noise.

Getting into airbrush/spray painting. I am wondering if I should get a respirator and spray into a cardboard box or get a spray booth?

>>1269897
Unless you are doing large areas, its largely not worth it

you say airbrush, i'm assuming small hand held, not paint gun doing a car.

if anything, a spray booth would be more useful, but its more for getting paint particles away from the piece you are making then it is your health... just don't be nose close and you are good to go till you know if you want to stick with it, most people don't.

>>1269893
White lithium grease

I have a stick about 4 feet long and ~1.5 inches in diameter after I stripped the bark off. Anything I could turn it into besides a walking stick?

>>1270151
>Anything I could turn it into

A dildo for your mom but at 4 feet it's still too short for her.
nb4 no sex devices - anon asked, I only answered

https://www.waterdamagedefense.com/collections/flow-rate-based-water-leak-detectors-shut-off-valve

Is there a more generic version of the "YdroStop" or an alternative method thats not $340? (Automatic shut off if pipe busts in house)

>>1270187
I mean, that was the obvious answer I guess. Thanks for your input. There really should be a site that has project ideas based on the raw materials you select.

>>1270151
A hitting stick!

anyone use ANSYS fluent at work? how is it? i need a better CFD than fucking solidworks.

>>1263355
Hi /diy/

I've got some cheap flatpack furniture falling apart and need to nail shit back together and replace some broken metal bits.

What is the name of those sort-of screws in flatpack furniture?
The flatish round things with a phillips head that you slot a bolt into the side of and then rotate them to lock the furniture together.

The cheap shit I'm dealing with has several of those that have shattered over time.

>>1270385
Cam lock nuts apparently.

Do i as a homegamer need an angle grinder?
I've been recently assessing what tools to buy and am wondering what uses would i come up against that would need one?

>>1270433
>Do i as a homegamer need an angle grinder?

it depends. console gamers have little use for an angle grinder unless they want to fine tune the shape of their controllers.

PC gamers pretty much have to own a high quality grinder for several reasons, such as fitting extra RAM.

>>1270440
gg

>>1270433
i dunno, do you need to cut metal (cutting discs) or grind metal down?

you'll also need a face shield and some ear protection if you're not already deaf

>>1270246
I like it!

>>1269938
>>1269893
>>1269890


Ok tried applying some white lithium grease we had in out house, I cant get anything onto the fucking area that squeaks.

I have a question, do hardware stores carry blunt tipped syringes or is this an amazon order?

>>1270433
they're useful for taking rust off of cars

is vinyl plank flooring good or shit?

>>1270474
I'm too lazy to look, but have you discussed wd40? it's great for squeaky door hinges. when you spray it on it is very fluid and wicks into tight opeinings, and once the volatiles dry it leaves behind a rather viscous grease which is fine for things like hinges; not so fine for things like motor bearings, but it might fix your squeak.

>>1270502
wd40 is honestly kind of crap for chairs, you get about 3 days before it needs to be re applied, and maybe 2 weeks before its so fucking bad that you have to do something, I had some silicon oil, but that bottle was small and fuck knows where it went or if it's even in the house anymore, that lasted a good 3-4 months, now im just looking for the best shit for the job, and it seems like grease or real oil is what the job calls for.

either way, I have been wanting to get some blunt syringes for a while, this is just a good excuse to either pull the trigger on amazon, or restock lithium grease and get some from a hardware store.

I have a 700 sq ft unfinished basement that has a lot of dust and shit.

Will it still be effective to get a ~300 sq ft air purifier and move it around occasionally? Might occasionally move it upstairs too

How to keep slurry at ~150 degrees Celsius? Needs to be pourable, and preferably spatula-able

>>1270574
So far I'm thinking sand/paraffin wax bath or a heating mantle

So I just bought a gun safe that I need to bolt to the wall/floor, and it came with bolts I've never seen before and don't know how to use. Can anyone tell me what these are and how to install them?

>>1270591
Looks like some sort of fancy anchor. Drill hole just big enough for anchor, insert, they expand when tightened

>>1270607
Sweet, thanks.

>>1270385
Well, >>1270389 has you covered, but I couldn't resist:
>cheap flatpack furniture
>falling apart
You don't say.

Borrowed a buddy's belt sander and he didn't have belts around so I went and bought a quick belt of Diablo 60 grit. I just need to take paint off of some boards but when I took the sander to it it seems to be very uneven sanding. I can't tell if it's the sander itself or the boards possibly being weird, but it did also happen on what looked like a good straight board. When I press the sander down flat only the edges of the belt seem to sand.
What do to fix? Can't find anything when looking up this issue.

>>1270591
expanding concrete anchor

What kind of compressor do you need to compress flammable gasses? Scared to use my regular vacuum pump.

What should I do with this old frying pan?

>>1271360
remove the handle and place the pan in the metals recycle bin

>>1271368
are you suggesting I should throw it away? Why?

>>1271378
Do you plan to cook with it?

>>1271379
No, I plan to find a new purpose for it.

>>1271380
Scrap metal

>>1271380
>I plan to find a new purpose for it.
You have no PLAN - that's why you asked.
turn it into a bit of money

>>1271368
What can I do with the handle?

>>1271360
A half-decent wokfi? You could keep the pan around the bench-top in case you ever need something that can take a bit of heat.

>>1271360

donate it to a thrift store. people actually do this: donate their disgusting useless cookware thinking that some other people are desperate enough to even touch it, much less buy it.

anyway, it'll end up in the garbage, but you'll feel better about ''helping out''.

I have a shit light fixture and want to DIY some ugly-but-effective LED strip lights for my game room. Should I worry about 12v vs 24v, or just go with whatever is cheaper? I also plan to DIY the controller for them that'll adjust brightness. How fast would I need PWM to pulse to not be noticeable? I know that cheap LED Christmas lights look like shit to me, and even earlier Samsung OLED displays flickered slowly enough to be noticeable.

>>1271564

12V is the more common standard, so more compatible with stuff, for example, some ikea brightness and color controllers you might come upon super cheap.

as for frequency, there's no major advantage to going with the lowest frequency you can get away with. so, go as high as you like: 355Khz. betcha wont see any flicker at that speed. LEDs are good up to about 1Mhz.

Looks like thread hit bump limit but here goes

Some of the walls in my house are rock lathe (thin green like paste layer or whatever it's called, 1/2" or so of plaster, 1/4" drywall). Are toggle bolts okay to use for hanging shit? It's nearly impossible to use a stud finder, fucker just faults out or thinks a stud is everywhere. I used masonry screws to hang a few adjustable shelving brackets and they seem to be holding really well with probably 50 lbs of shit hanging on them. Tried standard drywall anchors but hammering them in chips the fuck out of the wall. I'm mostly worried that all of that weight is just going to buckle the wall over time. Anything else worth trying that I haven't brought up?

>>1271742
Normal stud finders are literally useless for anything involving plaster as plaster is enitrely uneven which is what a stud finder is looking for.

Find a magnet stud finder (or any decent magnet because thats all it is) and use it to find where they nailed the lathe to the studs. Thats how I mounted my 60" tv in my plaster house

>>1271744
So it's just best to mount to studs? Thanks for confirming what I thought about my stud finder. I need a new one anyway.

>>1271571
Well I'd say just any frequency above 20kHz or so so that you can't hear it. Though that means you can't use regular op-amps in your circuit. But with one 555, 3 potentiometers, a quad comparator IC, and 3 FETs you should be able to make a small but effective PWM system, assuming the 555 has a useable triangle wave on its capacitor charging output; I haven't used one in a while.

>>1271874

a 555 can do PWM all on its own; you dont need any comparators sampling any triangular waves, just a pot and 2 diodes. and it can go to 2Mhz for the CMOS version.

>>1272058
Yeah forgot about that. But I like the op-amp oscillator with comparator better because you can get the triangle wave much more triangular, meaning the PWM adjustment can be much more linear. Not that that matters when dealing with lighting, since our vision is somewhat of a logarithmic scale.

What is a good way to connect a really thin wire to fabric?

>>1272112
a sewing needle

>>1272117

I should have specified, a small motor will be pulling the wire, and it needs to stay fixed to one point at the fabric.

https://www.remodelaholic.com/diy-portable-workbench-folding-table/

So I am new with woodworking and I am trying to do this portable workbench project but I just don't understand what it means by 2x2, 4x4 in the material part, I already have the quantity, thickness, length and width wtf is that for? and yes I am retarded

>>1272154
Ok nevermind after some research I've found out its talking about the dimensions but it's just the nominal name

heres the link if someone else needs help

http://mistupid.com/homeimpr/lumber.htm

>>1272197

fuck, i knew what a 2x4 was before i could wipe my own ass.

>>1272225
I already stated I was retarded and new to this stuff and I live in a country where we use the metric system

Also how was I supposed to know 2x2 meant 1-1/2" x 1-1/2" or 38 x 38 mm

I know almost nothing about electrical components, and my dad knows even less. He sent me a message telling me the air conditioning repair guy told him to buy this part himself because it'd be like $80 cheaper, and this is the only information he gave me:
>Daul Run AC Capacitor 70/7.5
>370-480 Volt
Is this the right part? Looks all good except I don't know what the 70/7.5 is supposed to mean.
https://www.amazon.com/dp/B005Y1FAMS/

>>1272373
>Is this the right part?
No. You need this part.
https://www.amazon.com/TEMCo-Dual-Run-Capacitor-RC0198/dp/B073FQD8R2

>>1272380
That looks better, thanks anon. Is it any issue that this seems to be rated only 370-440V while the part the tech mentioned is supposed to be 370-480V? I did some looking and couldn't find a 70/7.5 that went up to 480V.

>>1272395
No issue.
AC capacitors used to be mostly 370v rated but when the PCB ban took effect the replacement oil allowed frequent early failures.
By manufacturing them to the 440v standards they last much longer even with the poorer substitute oil inside.
The reason for marking a cap as both voltages is: if it will work at 440v, then 370v is easy-peasy.
I work on residential AC units and have never seen a capacitor rated for 480vac.

>>1271564
>ugly-but-effective LED strip lights

you know you can buy aluminum channel with plastic covers to pretty that shit up, anon?
https://www.amazon.com/dp/B071FT9SXK/