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Combustion paintball cannon?

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Combustion paintball cannon?

Unread postAuthor: wangpushups » Thu Nov 22, 2007 7:47 am

Is this possible? Could i make a paintball cannon if it were combustion? I've only heard of it being used with a pneumatic...
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Unread postAuthor: Hailfire753 » Thu Nov 22, 2007 7:57 am

easily*


*maybe not so easily, but it is definatly do-able.
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Unread postAuthor: wangpushups » Thu Nov 22, 2007 8:14 am

Nice dude. I was just worried about the paintball either exploding in the barrel as it passes through or the heat making it less durable.
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Unread postAuthor: Hailfire753 » Thu Nov 22, 2007 8:29 am

Yeah, no problem. Don't worry about the paintball exploding. The tube-shaped thing is the chamber, and it about the size of a can of red bull. It does not appear to have a chamber fan or anything to mix or vent the fuel.

The most challenging part of making one of these would be constructing a propane meter capable of measuring 4-6 times a second for fire.
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Unread postAuthor: psycix » Thu Nov 22, 2007 8:35 am

There are not many full-auto combustions around, but YES its doable.
If you want to make a semi it gets easyer and just a single shot one can be made easily.
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Unread postAuthor: wangpushups » Thu Nov 22, 2007 9:38 am

How the hell could someone make a semi-auto combustion? I've been on this site for a while now and havent seen one on here? Anyone have pics of one or plans?...Could be my next project.
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Unread postAuthor: VH_man » Thu Nov 22, 2007 10:55 am

The way the PEP combusiton Paintball guns work is that:

every pump empties the chamber, then draws in air and Propane from the tank at a defined rate to give the perfect mix every time. (syringe????)

i found a diagram of it somewhere, but with some clever needle valve work i feel like anyone on this fourum could make something that works like this. its EXTREMELY simple.

actually, i feel like somoene could make something like that with 50X the amount of power........... firing marbles... lol.
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Unread postAuthor: f.c » Thu Nov 22, 2007 6:17 pm

yes it is dooable and yes i have done it. http://www.rotteneggs.com/r3/show/se/247872.html
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can i be a sasquatch ?
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Unread postAuthor: Hubb » Thu Nov 22, 2007 6:27 pm

VH_man wrote:The way the PEP combusiton Paintball guns work is that:

every pump empties the chamber, then draws in air and Propane from the tank at a defined rate to give the perfect mix every time. (syringe????)

i found a diagram of it somewhere...
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Unread postAuthor: Maniac » Thu Nov 22, 2007 6:35 pm

whoa where do you get that from so many little screws and parsts im confused from those parts it looks like what vh said was right i wirsh i could have a propane meter like that.
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People who laugh really hard at stuff that pisses you off/you getting hurt, who then say "I'm sorry, I can't stop" but you know they easily could.

Mr.C: That's not as easy as you think. It's like me kicking you in the balls and telling you to stop crying.
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Unread postAuthor: Hubb » Thu Nov 22, 2007 6:43 pm

Don't look at the whole picture. Break it down and look at it in sections. Tippmanns are never complicated.
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Unread postAuthor: Hotwired » Thu Nov 22, 2007 8:23 pm

Lol, you'll scare people off the idea by posting an uber-detailed breakdown diagram like that.

Heres a simple animation I snaffled from somewhere (click to enlarge):

Image
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Unread postAuthor: VH_man » Thu Nov 22, 2007 8:42 pm

yes thats the animation i was talking about. i might make one of these......., exept hybrid style and a larger calibre.
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Unread postAuthor: Maniac » Thu Nov 22, 2007 9:32 pm

oh okay that actualy doesnt seem to hard to construct one yourself. i like the simple loading design i wonder what would happen i you held the pump against the spring. would it inject more propane?
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Coodude26 wrote:
People who laugh really hard at stuff that pisses you off/you getting hurt, who then say "I'm sorry, I can't stop" but you know they easily could.

Mr.C: That's not as easy as you think. It's like me kicking you in the balls and telling you to stop crying.
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Unread postAuthor: Hubb » Thu Nov 22, 2007 9:34 pm

Hotwired wrote:Lol, you'll scare people off the idea by posting an uber-detailed breakdown diagram like that.


Hey, he asked for a diagram... :lol:
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