Archived threads in /diy/ - Do It yourself - 134. page
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Would it be safe to breathe air from an aquarium air pump? Not under water or anything just sitting in a room and having a nose hose with it blowing air through the medical grade hose into your nose?
>>952182
yeah. its just a rubber daibphram and a AC motor inside it anyway. Maybe clean it if it's been in a fisht tank for a while, but its not dangerous.
Why tho?
>>952184
I can smell that sort of electric smell is that ozone? Its brand new. Btw thanks for the response. Im too embarassed to say why. It sounds crazy when i say it.
Safe enough. You know how easy fish die?
They just don't have much CFM
My bf punched a hole in the bedroom door of our rental. We're moving out soon and want to repair it in a way that will leave it looking pretty good. It's a shitty apartment so very slight discoloration is okay and wont stand out- just want it to look good. It's made of a crappy, lightweight cardboard material.
It's looking like a $40 hollow core door is going to be cheaper than repairing it with mesh, spackle, and paint considering id have to buy all those.
That IS crappy. But I honestly suggest you just have the super do it. Renting sucks, but one of the only benefits is that broken shit isn't your problem.
>>951364
Replace the door you scum. You signed a contract to either not break shit or fix it if you do.
I'm about to drop the cash on a new Milwaukee Fuel Gen 2 combo kit after a lot of thought and research. Item number 2897-22 specifically. Thoughts?
>>950143
Only suckers buy tools new (unless you need it right now for something you will be doing today and you can't do it without it full stop). Chinese made tools at that. Get a set used for cheap on CL and maybe drop a little on rebuilding the batteries.
>>950146
I kind of do need it right now lol. I had a comparable Dewalt XR kit that I just returned because the drill was dog shit and I need to get a basement finishing job done ASAP.
I don't mind paying full price for good tools that will last me. They'll get used to death.
This is /diy/ not /buy/
If I had a license and was legally allowed to distill at home and bought a kit like this, what would be the easiest and simplest way to keep the worm box cold?
http://www.moonshinestill.com/shop/stills/the-little-red-stovetop-6-quart-copper-pot-still
Moonshining is illegal and I'd make my own hard liquor without state and/or federal approval
>>949324
Water, ice and salt. or design a worm box with a spout so it can drain into a sink and attach a nozzle to your kitchen faucets to allow a continuous flow of cold water.
>>949324
In fact, looking close at that same design it has a spout at the top of the worm box. All you need is running water.
>>949324
Why is the cooling pan copper? Realistically all that needs be copper is what the alcohol (vapour) touches. That said, making the pot copper is a good thing, just not strictly necessary.
To keep your pipe cold just use a steady supply of cold water. Since I don't see a drain in your tray, maybe use ice bath instead. That said, you won't get great yields with a pot still, and you should probably look into reflux stills, or at least pack your worm with copper scrap on the uphill part.
Good...
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any mechanical engineers or electrical engineers on /diy/? getting out of the military soon and need to figure out what i want to do when i grow up. mechanical and electrical engineer seem like pretty neat choices since i have like trying to build things and i love learning how stuff works and plus they seem to have a pretty big variety of what they all encompass to hopefully make finding a job easier.
anyone care to share their thoughts and experiences, whether youre still in school or have a job?
>>948088
>i have like trying to build things
*i like trying to build things
>>948088
Nice stock photo
I can tell you are management material already.
>>948128
My bad, lemme go draw you a fucking picture of engineering as that is the point of this fucking thread
Hey /diy/, got a small project coming up that involves some 3D printed metal involved. Since it's a small sized print though the metal color will be mostly bronze while it is a silver metallic look I'm after. I wanted to spray paint it but since this is an item I would be in contact with a lot and rubbing from use I was concerned the spray paint could come off. How have your experiences with spray paint on projects gone? What do you find helps them last longer after constant use?
Powder coat it if you want. It will look better than cheap paint and it lasts longer.
>>948089
Seems a bit expensive, man. Also from what I can tell it looks like viewing this stuff at different angles changes the color you see.
>>948094
If you have your own setup and use it a lot it saves you quite a bit. If it is done properly it looks nice.
What are some cheaper PLC's that can handle higher direct output amps then this CLICK PLC? Pic related can handle .3 amps but the electromagnet I have in mind will run .33 amps. Would this work, or would I destroy the PLC? 24VDC.
>>944122
put a transistor driving stage on the output, you dork
>>944126
I was just going to say this! Transistors or ice cube relays are really the best bet.
PLCs! Finally a topic I can talk about... I was a project engineer/manager at my previous job and spent a ton of time on PLCs (technically PACs).
Just use a relay. They are super cheap. You can get small ones in whatever voltage you need. How fast do you intend on switching the device? Large SSRs are <$10 on Amazon and you can get various small relays from whatever electronics supplier you like.
Transistors are fine, but I think relays are better because the available formfactors lend to control panels better and they are widely recognized in industry. Always...
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The best way to melt plastic?
I want melt plastic to slop it into a mold. I don't know anything about melt things.
I can't just burn the plastic and drop the drops into the mould, right? this makes more hard the plastic, right?
Because I'm looking a way to melt the plastic but without change the softness of the plastic when this turn cool.
Burning usually changes chemical and physical structure of the plastic, the easy way is using a heat gun and being really cautious with the heat applied.
>>952662
if it's on fire, that's bad
you want to melt it, over moderate heat, definitely outside
>>952667
What about if a try metl the plastic like lead into a pan? can works? that change the softness of the plastic?
If I use Paint thinner to melt the plastic?
An oldish, all-steel saw blade. Clearly made of a nice steel, judging by how a file has trouble shaping it, and how it leaves scratches in drill bits. But too bad, it's made for a wacky arbor size and even if it were 5/8" I would never put it in my table saw because it is outgunned by today's carbide saw blades obviously.
I had already ground the tips off the blade for easy handling before I took this pic.
Mounted in a vise with a piece of scrap wood to serve as a straight edge.
I took light passes with the grinder to avoid bluing the tool and drawing its temper.
Finished with the first cut. I was happy with how I didn't seem to overheat the metal at all, but now I suspect the teeth are hardened to a much greater extent than the body of the sawblade. Well, this would make sense, I guess, but disappointing.
I think I might want to heat treat the steel after I cut out the blanks now.
Hey /diy/,
what would the best way to measure speed be using a speed sensor hooked up to some kind of microcontroller (ie, the arduino.) Most likely going to hook it up to one of my own avr boards that I made, but since it uses the same chip as the arduino it should be fine.
Pic related, basic diagram of what I'm imagining. Are there sensors that can tell you the relative speed at which they're traveling in miles or km per hour if they were attached to some sort of spinning axle, for example on a wheel?
>>951821
Come on, nigga, try a little harder. This is basic stuff.
Stick optical encoder on shaft (can be literally just a piece of transparency paper and the optointerrupter from a mouse's scroll wheel). Measure time between pulses. Determine speed by multiplying frequency of pulses by circumference of wheel.
>>951821
Reed switch and a magnet on the wheel would do it.
measure the audio frequency of the clicks...
![571[1].jpg](https://i.imgur.com/PB6Fm7W.jpg "571[1].jpg")
I am thinking about turning the aluminum rear of an ipad into a mirror smooth surface, like super shiny metal like in the pic.
what do i need to do this?
>>951610
>>951614
sand it with automotive sandpaper (2000+ grit)
use slave labor if available.
>>951620
Nah son, i just want my classic ipad to be a special one. extra chrome finish
im working on a Pip Boy model and im adding finishing touches, it has a satin finish, and i need to make it look worn and dirty like in-game, all ive got are cotton balls, paint brushes/etc, and light grey and black paint. any tips?
base coat of light gray primer, covered with the topcoat color of choice. Finish it up nice and then hit it with some 600 or 800 grit sandpaper in key places. Corners, edges, etc are great locations.
Lightly dab on dirt colored paint with a torn sponge or crumpled up newspaper
ive been using a cotton ball, would that work? there are some places the satin base has rubbed off through wear and tear, im painting those spots with the dirt/grunge paint. looks good so far
Old thread let the magic smoke out: >>939511
pastebin: http://pastebin.com/9UgLjyND
What are you working on, /ohm/?
Making a shitty Modified Sine wave inverter for my graduation project.
>>946499
what the fuck is this
>>946509
ECG, faggot
Construction and Home Reno bros is Makita the GOAT or do you prefer Milwuakee?
Jesus, are those fingers or eggplants?
>>952221
more like peppers
>>952196
Those white ones are inferior to the greens. Look for the brushless xlt. A buddy has the milwaukee and likes them good enough.
So i came home to discover the tree service my neighborhood association hired had decided to cut down one of my trees.Idk why but now i have to look at my neighbors crappy house.Whats a good fast growing tree to plant?I live in Pennsylvania so it would have to tolerate a real winter season and frost cycle.
>>950217
Ask them why the fuck they did that with out warning you first, and I would recommend a lombardy poplar or a october glory red maple
Bamboo
>>950226
Yeah,im pretty pissed and want an explanation as the tree wasnt anywhere near a structure or overhead line.thx for the suggestions.
