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under the barrel piantball grenade launcher

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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under the barrel piantball grenade launcher

Unread postAuthor: tjrobison11 » Fri Aug 03, 2012 6:29 pm

i want it to be pretty short , and the highest psi i can go to is 125. i was thinking burst disk was the way to go but if anybody has any suggestions i would appreciate it.
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Unread postAuthor: MrCrowley » Fri Aug 03, 2012 9:53 pm

Maybe a break-barrel design like this:
http://www.spudfiles.com/forums/goats-mcs-t12488.html

Burst disks will work but they can be a pain making, sealing and installing; probably not suited for paintball combat. I can't really think of anything that would fit under a paintball gun barrel, if that is what you're looking for.

A compact design would be a 2" chamber coaxial piston valve with 1.25" barrel. It limits how many paintballs can be in the shotgun round but it would be quite compact, easy to pump up and have the required performance.
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Unread postAuthor: tjrobison11 » Fri Aug 03, 2012 10:04 pm

ok thanks i will give i a try, i really want some kind of pre-charged catrige that i could load though. i while also make one for airsoft if that changes anything.

EDIT: i have decided to make it 12" long, also i want to use the co2 i am using for the paintball gun, for the grenade launcher with some kind of regulator that would handel that high of pressure and lower it to 80 psi
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