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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: PVC Arsenal 17 » Sun Dec 02, 2007 5:27 pm

Maybe 40 psi? Those were some fricken tough pumpkins. Also tennis balls are bouncy so they don't do much damage.
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Unread postAuthor: mtronic » Wed Dec 05, 2007 6:03 pm

How much pressure was in the chamber when you fired the shot at the pumpkin? Didn't seem like much, as when I shot a pumpkin with my advanced combustion launcher, it ended up in about 10 pieces.

Man thats good at 40psi and a bouncy ball, pumkins are hard as hell, although your crazy coz the ball could fly back at you and potentially hit you in the nuts :x

I just need to film 1 more melon today and then edit the movie and i'll have one too 8)
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