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My pnuematic paintball gun, now with breech loading.

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: simo » Fri Jun 15, 2007 1:43 am

wow is that sprinkler valve run by 9v battery and is that air chamber big enough
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Unread postAuthor: VH_man » Fri Jun 15, 2007 6:47 am

that sprinker valve is pneumaticaly actuated by a basic blowgun.

and the air chamber is plenty big. the barrel is only .68 inches ID.........

also, regarding your post about "what damage can it do at 200 psi!!!!!"

if he took this gun to 200 PSI, there is no doubt at least one of the parts would fail catostrophicaly. its all PVC. the reason why its black is becuase its painted.

and btw, if youre putting 200 PSI in your PVC cannon, please stop, we dont like mangled children............
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Unread postAuthor: SpudBlaster15 » Fri Jun 15, 2007 4:44 pm

Thanks VH_man...

To the other comments:

I am not going to be sending anyone diagrams. The breech is extremely simple, and anyone with half a brain should be able to figure out how to build it. If you can't, then you are too incompetent to be building cannons in the first place.

The barrel is 1/2" SDR 21, which has an inside diameter of 0.69", a slightly better fit than 3/4" CPVC and 3/4" Sch 80.

I have taken it to 120psi, and that is all I ever intend to reach. The sprinkler valve is only rated to 125psi.
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Unread postAuthor: tomthebomb137 » Mon Jun 18, 2007 10:37 pm

wait, but a paintball, being .68 caliber, is .68 inches wide. How is it that it will fit into any 1/2in pipe?
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Unread postAuthor: MrCrowley » Mon Jun 18, 2007 10:44 pm

Because 1/2" pipe doesn't have an Inside Diameter of 1/2". Its like .73" or something....
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