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first pneumatic cannon

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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first pneumatic cannon

Unread postAuthor: truemanator » Mon Aug 20, 2012 4:34 pm

i used a large (not sure of exact size) fire extinguisher as the pressure chamber, connected tow a ball valve, which is then connected to a copper pipe barrel, this is a very early design, and i hope to make the extinguisher into an air chamber, connected to a much smaller pressure chamber, and make this into semi auto gun, i also really need to work on the valve, as the ball valve is not quick enough, i am going to try to build my first piston valve on this cannon aswell.

(its not very impressive :(
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Last edited by truemanator on Mon Aug 20, 2012 4:36 pm, edited 1 time in total.

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Unread postAuthor: truemanator » Mon Aug 20, 2012 4:36 pm

heres some photos
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matriarch.jpg
matriarch
matriarchvalve.jpg

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Unread postAuthor: jsefcik » Mon Aug 20, 2012 7:18 pm

awesome quick design, but if you have a couple bucks to spend get a qev( quick exhaust valve) or even better dust collector valve!!!

have fun
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Unread postAuthor: Mr.Tallahassee » Mon Aug 20, 2012 11:45 pm

Actually, the dust collector valve wouldn't work well with an unmodified tank like this. Get a QEV and make it semi auto. Lots of info and numerous ways to set it up.
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Unread postAuthor: truemanator » Tue Aug 21, 2012 1:49 am

Thanks for the ideas, i will probably make it spemi auto with a qev
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Unread postAuthor: silentkill12345 » Tue Aug 21, 2012 9:44 am

they are not that expensive, i got mine for like 8$ :) look on ebay ^^
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Unread postAuthor: sharpshooter11000 » Tue Aug 21, 2012 5:55 pm

Pretty much the same as my first cannon, but I upgraded it with a longer barrel and a QEV, link's in my sig if you want to have a look ;)
Where's the fill valve though? And what pressure are you using?
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