SpudFiles

you could make a continuous hybrid system. inject fuel at constant low rate, and air at constant high rate, then ignite it. i wouldn't shot it more than three or four seconds at a time, because of the heat, but, creating that much air, you would need a 20 psi air source and a 3 psi gaz source. it 'd be likely to use steel or copper bb's instead of plastic onesz.



EDIT:: YYYYEEEEEEEEEEAAAAAAHHH 250 POOOOOSTS!!!!!

Hey good idea CpTn but i dont think this guy is ready for that type of stuff, that requires persision, I think buying an air compressor is a big waste of money because you will run out in like 30 seconds(depending on size of tank). I would go with a 3lbs-5lbs co2 tank and regulate that bizitch. It will last a lot longer or even a regulated paint ball tank.

Propane tank has 70 PSI in it. I think the idea mentioned earlier would deffinatly work.

Yeah it would sure smell like hell though, idk if its good to inhale large amounts of any gas other than air, also don't go around any sparks. LOL. Other wise those things above it would be pretty portable. Yet expensive.

Expensive to build yea. But propane tank at Home Depo is like $3. And you dont have to make it BBMG. You could just make it semi. I think im gona try that. xD

DO IT. Then post it.

Are you encouraging it? What valve should I use? Blowgun?

Yes i want you to do it, i guess you could say im encouraging you.

Well idk there are a lot of valves you can use for a semi auto, probably the most common is piston, Blow gun is involved in a piston. But normally blowguns alone are not used for semi autos.

Hmmm. Semi auto mini coaxile?
Nah nevermind is way too much pain. Hey lets not talk about this anymore because if I make it I want to submit it to the contest.

Dude what ever you want do do. I guess I miss understood you i thought you were making a semi-auto cannon. I got work to do today so ill be gone for a while. Peace.

perfect topic for me last night i was bored an started glueing pens to gether and made a $.30 airsoft machine gun. it works well and you can get about 150 fps with just your mouth.(i know the fps because i compared it to a crap airsoft gun i have and it shot a bit slower than 175 fps) this is how its made i dont think this is what you where looking for but its fun to mess around with if yuo want




its a fun wast of time for all you air compresser less people

Lol thats getto yet looks fun. Make the barrel like 30" and it will be pretty powerful.

Imperialist1 wrote:i need to know what wuld be the simplest bb gun to make/cheapest in the most minimal amount of time and has the least requirement for an air source i.e an air compressor or massive tank.

Mr. Russ wrote:a cloud

search up

Who really needs to "search up"? A vortex uses less than half the air a cloud does.

About the propane thing...

If Propane liquifies at 125 psi, Id say those tanks run at the same pressure since they contain liquid. the working pressure and the test pressure are printed on the side of the can.
Propane is already used in AS/PB guns every day, only it is called greengas.

Are you saying it quite possible?