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Welcome to /diy/, a place to:

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

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

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

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2 wires, 4 holes - what do?
(Ceiling lamp)

Much appreciated
blue in N
brown in M1? or try M2 but M2 is L so it might make the light be on the whole time i dont know.
but certainly blue in N and if you had a CPC (earth) it would go into the circle spade symbol thing but you don't so who cares.
blue in n brown in l2

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So what did you make today? I made a trunk from reclaimed wood.
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Really, you couldn't go to >>814092 ?

"Keyhole plate" was my first guess and it seems to yield results.

Sorry mate, to be honest, I overlooked it in the catalog

Thanks though
Im guessing it is the one in between the two darker bricks in the center.
See >>816579

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Okay I need a bit of math help from some engineers. I am working out a design for myself for a solar array with east to west tracking. I need to figure out the wind load of a solar panel per sq foot in relation to its angle. Angle range up and down is 28 degrees and 74 degrees. During the summer it may form a somewhat of a wing shape so uplift could be an issue. max wind speed record is 66 mph. The weak point is the linear actuator. Thanks.
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bump, not counting angle 66 mph with the formula f=Area x force x drag coefficient which is 2.0 for flat plates is about 22.30 pounds per square foot. I would need a 1500 lb linear actuator to withstand that.
You know the force when it's full on upright. Now just multiply that times the cosine of the angle that it's at.

If the angle is 0 degrees (standing upright and feeling the full force of the wind) then cos (0)=1 and you get the full force. If the thing is laying flat, cos (90)=0 and there is no force exerted on the solar cell. Any angle in between will result in less than full force, according to the cosine curve.

Make sense?
kind of? what is the co sine of 28 degrees and 74 degrees? Im kind of math retarded. never id much beyond basic algebra.
nevermind, googled it. So the worst angle is winter with 24 degrees, which is about .88 so around 20 pounds per sq foot.

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I Searched Stupid and got nothing so

Small/Stupid Questions thread.
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dovetail them together
This is not a small question
Dig up both ends of your drain pipe.
Rent pneumatic ram with compressor and pipe splitter and pipe attachment for pulling new pipe in.
Ram through your old pipe and bring in a new pvc pipe. The whole thing needs to be replaced because the whole thing is fucked.
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>This is not a small question
Apologies for not being clear. This is in a building that pre-dates indoor plumbing, so all the drains are retrofitted to the outside. The damage is in an above-ground bit.
corroded, wet, partially buried cast iron pipe containing traces of sewer gas is effectively unweldable.

dig it out and replace it.
If I wanted to cook cheeseburgers with thermite (or cook anything, really), what could I use to hold the lit thermite so that I could place the grate and food above it?

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So my table saw motor keeps tripping my fucking breaker then its thermal switch. don't get me wrong I'm trying to run it on a 15 amp outlet when the motor itself eats up 14.8 amp. but that's max load?? I can turn the damn thing on for 30 seconds, it clicks off -breaker trips. then head over the to breaker, off - on. walk back over to the motor and flip the switch again, it will go for another 30-50 seconds before it shuts off again, but its not shutting off at the breaker the thermal switch built into the motor shuts it off...

I just replaced the bearings in the damn thing and cleaned off as much saw dust as I could get at. it does this all by itself, no load either just the motor running. its an induction motor too, no bushings.

My question is not so much about the breaker as why the damn thing is getting hot, well over 120 degrees F on the ouside shell!

It is hooked up to a 12 gauge extension cord. but that's most likely whats causing the breaker to trip. I know I should have a good 10 gauge, but them shits are expensive!
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if the breaker is getting that hot then it is going bad or is bad. replace it, its no hard to do. Mine was doing the same thing minus mine was just getting warm not hot. Replaced it and now its fine i run a 10" table saw (crapsman professional) on 110 and have no problems after the breaker was replace and its a 15 amp breaker. now if i turn the lights on and the radio and start the table saw and a 15 gallon shop vac all at the same time then it may kick but only 1 out of 10 times.
Normal household 15 amp circuits are not meant to run a continuous load at 15 amps. Motors have a few variables that affect their performance, here's a few.

Voltage: If your extension cord is too light of guage you will get more drop per amp, per foot.

Power Factor: This is the ratio of Volt Amps (VA) compared to the Vars. Vars are the reactive force of the motor on the power supply. To lower the vars and in effect increase the power factor motors have capacitors installed in parallel.

The probable fix:
There are special motor breakers that cost an arm and a leg, but running a 20 amp circuit might be the most effective and safe bet.

Why a 15 amp household breaker pops:
all household breakers are rated for non continuous loads. This means that they can only handle 80% of their rating for a certain amount of time. 15 amp breakers really work for 12 amps, and 20 amp breakers will work up to 16 amps continuous.
my problem is if I'm gonna hire an electrician to install whole new wiring. I want it to my back porch [where theres already an outlet in the concrete wall but only a 15 amp 120volt crapzoid outlet]

and have it a 220volt 50amp outlet.

but I don't feel like paying some sparky $1,200 to run maybe 100 feet of line. and install a breaker. and im sure as hell not dicking around with 220 volt 50 amps myself. plus it has to be county approved, im not staying in this house for ever and they inspect dodgy wiring setups to make sure they're to code.

do I sound like someone who can install wiring to code?! I hope not.
It sounds like a motor short to me. You need to get yourself a megger.
Second this to infinite.
Electromechanical Technician here, the breaker is the problem, get a bigger amperage one, but not in excess or your motor will break bad in case of short-circuit. Get something arranound 18-20 Amps

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I feel like making profit and advertising have subverted the front of the maker movement, and I find it rather sad. Does anyone else agree? Has anyone else noticed this?

I remember the old Make magazine. It was cool because most of the things in there could be made with common household stuff, or some generic things. And the old magazine felt like it was less geared to profit. The early issues (I am talking before the switched over to the thin version) weren't as flashy or using a ton of buzzwords like Arduino and OPEN SOURCE and RASPBERRY FUCKIN PI. In the current issues it seems like it shills Adafruit out of the ass. All the projects must use some name brand shit like Arduino or a Pi. Just buy this shield and ur a maker :DDDD! You're being creative I swear it! Its just one easy purchase. :)

Its the same with the other companies that have sprung up to shove this shit. Adafruit and Sparkfun are pretty bad about overpricing things and maintaing this facade that because everything is OPEN SOURCE that they aren't out to rip off people who don't know better.

I think the term open source has been relagated to nothing more than an advertising buzzword, like the term "artisan" or "natural."

Do you agree?

Here's an old issue of Make:. I will post a recent one for comparison.
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I forgot about that point too.

Now you can buy the arduino, buy the shield, upload the program, and you have "created something." Its like Betty Crocker cake mix for projects. This has been a trend with things for decades but the maker movement was supposed to be a reaction against that which is the real reason I have this sense of frustration.

Look how cheap it is to be creative nowadays
It's less "Make" and more "Assemble." It looks like all this stuff is the Ikea of actually doing stuff.
So... Why is this "maker movement" even needed? Why don't you guys just build things? Why do you care about how the others build their things?
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>So... Why is this "maker movement" even >needed?

It was needed because people were tired of the trend of things like the iPod, which are specifically designed to be difficult to repair and modify by the end user.

>Why don't you guys just build things?
I do. All of the damn time. Hence me getting so triggered in the first post.

>Why do you care about how the others build >their things?

Its an unpleasant sea change in what used to be a really cool community. I just think its become much less creative and independant compared to the way things used to be.
That's another issue I have. It takes two brain cells to put together Ikea furniture. You don't even have to be literate. I'm not going to be -that guy- and suggest that the maker community should be full of mensa members and electromagnetism professors, but...

There's more pride to be had in shitting together a 555-timer synthesizer from scratch than using an MCU and three shields to play notes out of your Make:ShitKit speaker.

The Arduino has its place. It's a powerful little chip, and if you need something like CNC control, or remote datalogging/reporting, it's great. If you're trying to make a single servo move, or blink a couple of LCDs, there are cheaper and more fun solutions.

It also helps promote engineering knowledge. Quite a few companies (Apple, Microsoft, et. al.) were started by people who were playing around with circuits/computers/technology and wanted to make something better.

If you hooked up an IC backwards, you might get some magic smoke (Tip: inhale this to become an electronics wizard!), or less often... Something neat and interesting could happen! A lot of things were created accidentally, and the movement of being a 'maker' becoming "Plug this shield into your MCU and upload this prewritten code" takes away from discovery by mistake.

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Does anyone have any tips on getting revenge on the ants?
not fireants, but we do have ants that fuck up our driveway.
Our driveway consists of stones underlayed with sand, and I'm afraid that the ants will one day remove so much sand from under the drive way that the bricks will cave in and the driveway will lose its structure. What do? We tried coffee grinds, mint water.... what else can we try?
Pic unrelated, it's a fire ant.
Try google.
what do i even come here for?
what do you think are the top 10 results on google. None of them work.
Did you try... ant killer?

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I have some old headphones that are just like pic related but the foam is starting to come apart. Do you have any ideas on how to replace them?
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Man, the don't build them like before anymore unless they are some V-Moda or alike.
This is why I miss RadioShack in general. They were the go-to place for electronics and replacement parts. They've been gone locally for close to ten years.
I drove by one yesterday. Middle of BFE but they still exist.
they went bankrupt months ago, i cleaned the local out of $1000 in discretes for <$100 all told while the sheboon manager screamed at her staff because she didn't want to take the blame on herself for running a shit store and getting laid off
This maybe?

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Cheap and easy to make A/C unit.
Here's what you need:
Stuff to buy
1 Styrofoam Cooler- $2.50
1 4-inch Desk Fan- $8.00
Bag of ice (optional)- $2.00

Instructions are pretty simple, only a dummy would find this difficult
Cut hole on top big enough for the fan
and then cut a hole on the side of the cooler but make sure its high.
Fill with ice, turn on the fan and boom, Instant A/C
The more ice, the cooler.
(dont forget you can put drinks in there too)
Easy, Cheap and effective way to cool down for the summer.
And Remember, this is PORTABLE

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Why tf is my pic sideways??/?
Did you use a phone and have it rotated when taking the photo? It carries orientation info that doesn't work outside of phones, usually. So, posts are upside down or sideways.

Remember, these AC units are only good for spot cooling directly on you and not as a cooler for the entire room. If the later was true, you'd not need to use anything more than an open bag of ice and forgo the need for the fan.

There's been many of these posted on DIY before. I've made a couple for specific jobs. Most people devolve into arguing about efficiency, ice, and freezers in these threads.

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Anyone here make soap? Any advice?
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alternately, just do the basic stoichiometric calculations yourself.
Sabina Altynbekova

Fuck man. I'd have to hear her voice first but otherwise she'd be a 10/10 in my book. You can tell everyone else thinks so too, which is why she's being jumped on by a bunch of warn out, insecure, middle aged whores.

You fell victim to one of the classic blunders OP.
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/out/ soap

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does anyone have a bow tie and a neck tie pattern that i can use???
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dude seriouslly? google doesint have one, thats why my hopes are in 4chan, look it up
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here's a bow tie pattern you can use op.
what are the dimensions if i may ask??? is it scale 1:1???
Look at the darn picture, see that grey square that says 1 in x 1 in. It might be that you're supposed to print it so that said square is, guess how big?
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I fixed the picture for OP. Hope this helps

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Anyone Working on something interesting Lately?
Just finished the 3rd on of these Ive made so far, Its a great destroyer clone
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I used expresspcb to order boards for a fuzz pedal I designed recently for school, and while they can be expensive (I had to go with the ProtoPro), they are also pretty great as far as I can tell. Their free software's not that hard to learn either.
If you're in the US or close, OSHPark.
Google syndrome. Super cheap w/ silk screen

Fucking auto correct

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What's the best glue for bonding wood and steel?

I'm mounting this spearhead into a wooden shaft. I'm going to drill down into the wood and put some rods through those holes in the tang, then wrap the whole thing up with rawhide. That should be plenty to hold it, but just to be extra sure I want to fill in the hole with some kind of glue when I put the spearhead in.

Wood glue seems like the obvious choice, but I don't know if that bonds with metal.
any brand of epoxy resin, make sure you mix the hardener in very thoroughly

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Tool and tool storage general. Post your set ups, work stations, tools or questions for all of the above. Pic related, work at a GM dealer, my box (Everything 100% paid off, loaning is for suckers).
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I just started about a year ago so i barely have the bare minimum
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And yes, today i used the coiled wire. Tanks anon
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I dont use metric very often, though that will be my next purchases as i build a home tool kit
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The other drawers arnt as neat so ill stop here
Don't put paper or cardboard in your box. They pick up moisture and can contribute to rust. They sell drawer liners but you don't need that stuff. You can diy decent replacements. Linoleum flooring works well and will protect the bottom of your box very well. Plus its easy to clean. I went to a local flooring place and asked if they had any smallish scraps I could have and they gave me a small roll of the ugliest flooring you've ever seen for free. Also, through a few small desiccant packs (the kind you get when you buy shoes and shit) in there to help suck up moisture and prevent rust. Pic related.

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