I want to make a airpowered potato launcher. I am trying to find the fastest way to open a air valve fully which is under pressure. Ideas?
Pneumatic Potato Launcher
Kevin Hughes
Noah Foster
ATF pls go
Chase Price
pneumatic launchers are not illegal to my knowledge. If I am wrong correct me.
Josiah Walker
Pneumatic guns are not regulated as firearms, even if they fire (inert) projectiles at lethal speeds. Theyre easy to build, either out of PVC or threaded steel, and can be great fun as well as be much quieter than firearms. I thus suggest we create another cancerous general with spinoff discord servers, called Pneumatic Weapons General.
To answer your question, OP, you can use servo actuated sprinkler valves for low pressor, or use high pressure ball valves with a rubber band actuated, long lever opening mechanism. See Jorge Spraves videos on the subject, you can get pretty good results with a little bit of plywood and some surgical tubing.
Isaiah Carter
I did see his video on the ball valve with rubber bands. My concern with that is the size which is needed and the rubberbands being susceptible to temperature changes and not functioning as effectively. Are there no 'dump valve" sort of designs out there?
Sorry for my lack of knowledge on this.
Bentley Hill
The fastest way is to use a solenoid valve rather than one which you open manually with a lever.
Parker White
>Are there no 'dump valve" sort of designs out there?
Yes. The word you are looking for is a "solenoid valve". They come in many versions: electrical, pilot operated, etc.
Adam Rodriguez
Any suggestions on specific models I should be looking at?
Gabriel Peterson
More info is needed. How do you intend to fire your cannon? Electric switch or do you want to operate a valve manually? If electric, what voltage are you using? In either case, what pressure do you want to work with?
Kayden Jenkins
I am kind of a sperg in terms of history and I was considering taking a Panzerfaust dummy model and making a dummy wooden warhead to larp with. So I need it all to fit into a pipe of similar dimensions. If I want the projectile to match the original optic I imagine it needs to fire a ~2lbs projectile 200 meters. I am wildly guessing that it needs to be like 300psi?
I also believer that an electrical solution would be best due to the many ways I could fit it to an original panzerfaust tube.
Luke Sullivan
>I am wildly guessing that it needs to be like 300psi?
do your math, hombre. I suspect it will be far far higher than that.
Pneumatic panzerfaust is technically possible, but is far beyond the reaches of a basic hobbyist and will probably cost more than buying a real one.
Oliver Williams
What is a math?
It doesn't have to be the actual 2 lbs id just like an object to go the actual distance.
Jordan Torres
I'm in the process of building a pneumatic arrow cannon. My system should run around 500 psi and fire crossbow bolts.
I'm just waiting on my 7mm barrel that the arrow will slide over.
Electronic solenoid fired. Ball valve pictured is just a safety feature that I've since replaced with a lower profile valve.
My math says this thing will shoot about 450 fps.
Cameron Jackson
Attach the lever to a very strong spring that snaps it open. One that requires some kind of ratchet like sysyem to draw it closed with a trigger to release it. Thats how id do it
Colton Lewis
This is basically the basics of how it would work and this would be somewhat easily done
Camden Perry
I appreciate that user but that cannot fit in a Panzerfaust tube
Andrew Gomez
So I was looking and ckdusa.com
This basically says what you want is a direct acting pneumatic valve powered by a solenoid.It'll be a little more expensive, but has a faster opening time
Nathan Ross
Has anyone here built a break-action air cannon? I've been considering a design like In my head for awhile, but with a break action barrel that seals on gaskets. I don't imagine it would support as much pressure, but it would be a fun build.
Benjamin Baker
I made one that can shoot golf balls through car doors but it's combustion.
Colton Lewis
It's accurate up to 150 yards but effective up to 300 yards.
Aaron Hall
Pneumaticfag here.
You want a QEV (Quick Exhaust Valve) or a direct acting solenoid.
There are two kinds that I normally use, one is electric and one is mechanical and can be rigged for electric or non-electric use.
I'll get you links if you'd like and explain more. If you want to see if your rough ideas are workable, here is the calculator I use.
thehalls-in-bfe.com
It's surprisingly accurate. Might need to run it in compatibility mode, it's pretty old.
Ethan Howard
i have always wondered if these could be used in riots against police. the faggots like to pepper spray and gas people i think they would appreciate being poop lobbed on them from afar.
Evan Sanders
>hurrr da po-leese be faggits since dey use less lethal instead of simply mowing down violent thug assholes destroying private property. Bix nood mufuguh.
And let's be real. If the police are genuinely in the wrong and the rioters are watering the tree of liberty, then you don't want a fucking shit cannon, you want xm855.
Ethan Butler
I don't know man shooting hardened shit so fast it'd break a face visor would be fucking hilarious
John Jones
I built one years ago that uses a 1” solenoid operated sprinkler valve connecting an air reservoir to a 1.5” barrel powered by 2 9v batteries and it packs a way bigger punch then a combustion cannon at 120psi. But if you’re up for a bit more complex build that’s way more powerful google “diaphragm air cannon”
Jace Gomez
These aren't as good as a simple piston valve air cannon.
Christopher Martinez
a better thing would be to launch smoke bombs or flares.
The moment you use deadly force against them they will resort to some pretty powerful stuff, so it'd be best to use the cannon as artillery to disorient and confuse their formation, making it easier for the rioters to break through.
Hudson Bell
What you're looking for is called a butterfly valve, everybody else is a dumb nigger.
Caleb Brooks
Dude I don’t think you turn the air on really fast and then off fast.I think you have to put the air into a reservoir tank until you fire the trigger at which point all the air in the reservoir tank is released
Austin Mitchell
Here ya go OP.
spudtech.com
Bentley Morgan
Us an election solenoid valve.
Josiah Davis
Thanks for that info user. Can you send the QEV's?
Ayden Diaz
>pneumatic
it could legally launch projectiles at half the speed of light at 700 rpm and still be technically legal as long the launching didn't involve explosives
Eli Reed
Isn't there a maximum amount of explosives you could put in a potato before it's a NFA violation? Something like 1/4 ounce of boom?
Jacob Hughes
I wouldn't risk it unless you're absolutely sure you want to start Civil War 2: Potato Boogaloo.
Gabriel Sanchez
wew thats the exact same thing i made with my dad when i was little down to the valve and the tape, i used a bike pump instead of an air compressor when i needed to. managed to kill a rabbit by filling my much smaller tube with ball bearings. glad my mum had the sense to get rid of it because things like that are very illegal where i live. fuck the government. i really wish i tried using darts with the fins cut down and the offcuts epoxied a bit forward so there wasn't any give in the tube.
Levi Sanchez
Any suggestions on a specific one?
Eli Baker
What’s your gas mix?
William Lopez
You say that like you're not getting lit the fuck up the second you bring out your giant spud gun
Caleb Edwards
>It's ok guys, I'm sure he's only loaded non-lethal ordinance in that giant pipe bomb on his shoulder
James Sullivan
There's some really good plans floating around using steel pipe and co2 capsules. Google "DIY paintball grenade launcher co2."
Zachary Gutierrez
Bentley Morales
It's butane so 3% of the chamber volume.
The thing fires 150+ yards accurately, you'd be a bit far away for them to make it out.