I often use compressed air cans for cleaning small electronics, so it's always at my desk
I want to stop buying cans and have something "unlimited"
But I also don't want to use a noisy air compressor
Is it possible to make a kind of big syringe, using a large pipe and a plunger and a heavy weight, then there would be a small hole on the bottom going to an air blow gun
Then I'd just need to pull the weight back up when i used all the air
I guess there would be some calculation with gravity and weight to reach a decent air pressure, but would this work?
i tried to draw what i meant
perhaps, if you had a really tight seal or used a balloon. you would basically build a really wide/tall bike pump. might as well get a $35 chinkshit tankless air compressor for airbrushing
no, you would not be able to get a high enough PSI to be useful
just buy one of those chinese usb powered air cans
Uhm, it would be the same amount of psi as the amount of weight. Need 100psi? Just add 100lbs of weight
>can't tell if joking or just stupid
Well if the surface area of his piston is 1 square inch i guess he would technically be correct... Minus friction loss of course.
It's not just about pressure, it's also about volume. 100psi using a 100 pound weight means the cylinder would only be 1 square inch in area, so unless the cylinder is insanely tall, it's only going to be good for a few seconds of air before needing to be reset.
You got it mate. Literally nobody in entire human history ever tried to solve this problem, you are a genus and you are the first one to come up with a blower.
What a miserable c**t.
how new are you. If someone is so thin-skinned that they are crushed by that banter then they would be far happier at a safe place like redit.
you want an airbrush compressor for hobby modeling
they're compact and quiet
Why are there so many threads with people asking about absurd solutions to problems that were solved decades ago?
>PrepHole
>PrepHole
Is not about inventing new and absurd ways to fail more expensively.
Its about applying your own ability to independently achieve goals.
Okay.
So we're telling you about air compressors
Go and /buy-it-yourself/ cheaper than any other solution except your mom's specialty (blowing)
>/buy-it-yourself/
>decades
centuries
Because you're on a board dedicated to bootlegging and rednecking shit into oblivion, which is coincidentally also the thing that makes it interesting.
Board would be a lot duller if the answer to every problem was "just buy x".
This is dumber than buying a portable air tank and filling it with a bike pump.
Yes, do it now get the frick out.
My choice? It would have to be RYOBI's 18V ONE+ Cordless 1 Gal. Portable Air Compressor. This compressor delivers cordless air up to 120 PSI making it perfect for cleaning small electronics, roadside tire inflation or for turning pneumatic finish nailers into cordless finish nailers. Battery and charger sold separately.
Unironically better choice than OP's idea
>I also don't want to use a noisy air compressor
Caring about that is stupid since use would be intermittent and quiet compressors exist. OP is trolling and you fell for it.
how much noise do you really think an 18v compressor would make?
>how much noise do you really think an 18v compressor would make?
It actually depends heavily on the compressor. I've heard 12v tire compressors that are stupid loud, and I've got an oilless compressor that is quiet enough to work right next to, comfortably, without ear protection.
The cheap cordless ones are built around the same cheap, Chinese pumps they use on the tire inflators. The good ones use ones like the nicer oilless ones. The noise they each make reflects this.
I have one - just like the Ryobi in the pic.
It's noisy as hell and discharges the battery pretty quickly.
>how much noise do you really think an 18v compressor would make?
https://www.youtube.com/shorts/rslu_UqJMiQ
Wasn't there some tower that a company used that had falling water compress air? I remember seeing a video about it on youtube. Maybe OP needs to build one of those.
Just googled it, it's called a trompe.
>Just googled it, it's called a trompe.
Not to be confused with OP's mother who is a tramp.
This is a rather absurd solution to a simple problem. And unless you build it perfectly, and maybe not even then, you're probably going to have to reset it every time you want to use it because the seal between the piston and the cylinder walls is going to leak the air out eventually. It's also going to have to be a large amount of weight and a cylinder with a large cross section if you want to get a usable amount of pressure out of it.
If you want to avoid the noise of a compressor at the point of use, my suggestion is to just get a portable air tank and attach a blower nozzle to the end of the hose. Then you can just fill it up from a separate compressor whenever it gets low on air.
Sometimes the simplest solution is the best solution.
Instead of building some contraption, just get a datavac. I did about a decade back and it works fricking great. It'll be cheaper than buying a compressor and safer since any compressor that is in the same price range is a bomb waiting to happen.
i got one not exactly the same but similar
and it works fantastic
but it is absolutely not quieter than a compressor
It's a better solution than a compressor.
oh definitely its fantastic, powerful, quick, zero maintenence,
but op said noisy its necessary to say its noisy
>a bomb waiting to happen
Get a grip you pussy
Guess you've never had a tank rupture. You only buy cheap once.
I’ve seen tanks rupture, and it’s not a “bomb waiting to happen”. It hisses and scares the women and animals.
>a leak is the same as a rupture
Can you tell me more about this thing?
Plug it in, put on a nozzle and turn it on. I only use the small nozzle. Be sure to keep any fans from spinning from it as it will kill them, ask me how I found that out.
The idea you're describing is basically a bicycle pump.
You would never reach an acceptable pressure and a usable amount of air using a weight that you can lift (+friction is a b***h in these kinds of setups).
>but would this work?
Technically yes, but the output would be equivalent to the pressure coming out of a balloon.
Best you could do is attach some Schrader valves to a bunch of beefy air cans, and then reloading them using the compressor. Or if the compressor noise bothers you that much, ust use a bicycle pump.
Alternatively, you could also frankenstein together a bicycle pump and an air compressor tank, and just refill it by hand, but that just sounds like an air compressor with extra steps.
Dust blow out pump. ~$30 US (so like a weeks salary for a Europoor). The bulb style is great for the Cheeto crumbs in your keyboard but the pump style move a lot more air. They’re used for blowing out holes drilled in concrete.
The obvious joke is they kind of resemble a penis pump.
Would it be worth it to pay 80 shekels for the Hilti?
You're all such gays, srsly. Are any of you doing ACTUAL DIY? FFS.
Get an old fridge or freezer air compressor. Just look for a fridge at the side of the road and always carry a pair of sidecutters with you.
You can just cut the tubes with the side cutter, they're all copper. Also cut the cable, make sure to keep the start capacitor tho.
There are usually bend sheet metal tabs at the bottom holding the compressor in, straighten them out with the sidecutter.
Make sure to not leave behind the rubber gromets for vibration insulation.
The plastic tray ontop is for water to evaporate, you can just rip it out with your hands.
I've grabbed dozens of fridge compressors of the side of the road this way.
Next you need a fire extinguisher. Ideally empty, ofc. Idk where you would get one where you live, maybe ask the firefighters.
Most of them are powder, powder makes a mess. Check it outdoors if it's empty, the powder is harmless, you can spray it on grass, one rain and it's gone. It will act as fertilizer to most plants actually.
The powder is highly corrosive, so you wanna clean it well. Never use these dumb things indoors, everything metal will oxidize, it's literally as bad as letting the house burn down.
You'll need a pressure switch, a pressure regulator, a safety valve, and an oil/water seperator unit. You can score that on aliexpress for ~30-40 bucks, there are combined units that have all of that on one 1/2" or so fitting.
Next you need some pipe fittings, just go to the store and autistically tinker with them. You might have to DIY a bit to make it fit to the fire extinguisher outlet. The old brass ones are easy to solder.
The compressor has copper pipes, just solder them like one would solder water pipes. Supplies can be scored at any hardware store. Small Propane torch is all you need.
If you need more detailled instructions, google "DIY airbrush compressor from fridge compressor" or something. You'll find 9001 tutorials.
t. actual DIY guy who's not a gay
What type solder should I score? And when I score the pressure switch is there a range I should try to score?
t./fa/gay who is used to copping things and new to scoring shit.
>used to copping things
I thought you were joking. go to /gay/ and Ctrl-f "cop" and bingo. I swear to god this is the gayest site on the internet. Anyhoo, I'm off to score some solder and shit.
>
Get an old fridge or freezer air compressor. Just look for a fridge at the side of the road and always carry a pair of sidecutters with you.
You can just cut the tubes with the side cutter, they're all copper. Also cut the cable, make sure to keep the start capacitor tho.
There are usually bend sheet metal tabs at the bottom holding the compressor in, straighten them out with the sidecutter.
Make sure to not leave behind the rubber gromets for vibration insulation.
The plastic tray ontop is for water to evaporate, you can just rip it out with your hands.
I've grabbed dozens of fridge compressors of the side of the road this way.
Next you need a fire extinguisher. Ideally empty, ofc. Idk where you would get one where you live, maybe ask the firefighters.
Most of them are powder, powder makes a mess. Check it outdoors if it's empty, the powder is harmless, you can spray it on grass, one rain and it's gone. It will act as fertilizer to most plants actually.
The powder is highly corrosive, so you wanna clean it well. Never use these dumb things indoors, everything metal will oxidize, it's literally as bad as letting the house burn down.
You'll need a pressure switch, a pressure regulator, a safety valve, and an oil/water seperator unit. You can score that on aliexpress for ~30-40 bucks, there are combined units that have all of that on one 1/2" or so fitting.
Next you need some pipe fittings, just go to the store and autistically tinker with them. You might have to DIY a bit to make it fit to the fire extinguisher outlet. The old brass ones are easy to solder.
The compressor has copper pipes, just solder them like one would solder water pipes. Supplies can be scored at any hardware store. Small Propane torch is all you need.
If you need more detailled instructions, google "DIY airbrush compressor from fridge compressor" or something. You'll find 9001 tutorials.
t. actual DIY guy who's not a gay
>What type solder should I score?
Whatever your local store has for plumbing supplies. Last time i bought it it was still all lead based, so Sn Pb stuff. Nowadays it will be some gay lead free stuff. Also buy the flux. It's more aggressive than electronics flux, with more acid. It would ruin printed circuit boards (at least that's what people claim) but it makes up for when you lazy gay don't clean the copper pipe proper.
DO clean the copper pipe proper, either some sandpaper or a wire brush. Well prepared joint makes it real easy, dirty joint is usually hopeless.
>And when I score the pressure switch is there a range I should try to score?
From my testing most fridge compressors are happy to go up to 40 atmospheres of pressure.
That's 580 PSI or about 4 washing machines per square foreskin.
The operating pressure for CO2 based powder extinguishers is ~27 atmospheres, with test pressures of 30-40 atmospheres.
The pressure switches sold on ali are typically 8 atmospheres (120 PSI) sometimes you're lucky and you find a 12 atmosphere / 175 PSI one. I would prefer that, you simply get more free volume in your tank.
For the safety valve i went with a 15 atmosphere / 220 PSI one, in case the pressure switch fails.
The fridge compressor is entirely capable of blowing up the fire extinguisher tank, so you kinda don't wanna skip a safety valve.
>t./fa/gay who is used to copping things and new to scoring shit.
I lurk PrepHole too, gotta steal my fridge compressors in style.
> everything metal will oxidize, it's literally as bad as letting the house burn down.
> it's literally as bad as letting the house burn down.
> literally as bad
Stfu
Plumbing Solder is so underrated.
Most people don't know how easy it is to solder brass, copper and steel.
Even cast iron can be soldered.
You can quickly cobble together whatever you need from some scraps merely with a bit of solder and a propane torch.
If you struggle to open the fire extinguisher, just clamp the top end in a vice, and use a strap and a rubber coated glove with a 2 by 4 as lever to twist it off.
Use a squeeze duster.
Put the compressor in the shed/garage and run a hose (will get brittle and fail after a decode or so) or pipe.
Instead of building a pipe bomb like others suggest, I would recommend just a simple water displacement gasometer. Here's a guy making one for wood gas stuff, but you can probably convert it just for air pressure cleaning easily enough
Also note how fast his thing empties when open and ask if you're ok with 'refilling' it every few minutes
>
I often use compressed air cans for cleaning small electronics, so it's always at my desk
I want to stop buying cans and have something "unlimited"
But I also don't want to use a noisy air compressor
Is it possible to make a kind of big syringe, using a large pipe and a plunger and a heavy weight, then there would be a small hole on the bottom going to an air blow gun
Then I'd just need to pull the weight back up when i used all the air
I guess there would be some calculation with gravity and weight to reach a decent air pressure, but would this work?
i tried to draw what i meant (OP)
>Instead of building a pipe bomb like others suggest
This is the wrong board for scared little basedboy.
This is a board for men, doing men things.
https://www.google.com/search?q=DIY+airbrush+compressor+fridge
These things are perfectly safe if build even half way competently, and there are 9001 guides on how to do so.
Now hush hush back to your safespace on reddit before you slip with a screwdriver and cut yourself so bad you need a bandage for your bubu.
Balloon plus hose plus duster. With a check valve and a Schrader fitting you could use a bike tire pump to inflate the balloon.
You'd have issues with volume.
Your best bet for access to "unlimited" compressed air without a shit load of noise is to get a very large compressor and a very large tank and put both in a shed and run the plumbing to your shop.
Like a syringe?
Moving on
Can you put the compressor in a well insulated closet?