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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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Unread postAuthor: NoXi » Wed Jun 20, 2007 3:43 pm

wow thanks a lot jumpin, im going to home depot right now to buy all the stuff. Thanks
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Unread postAuthor: Acdcmonkey1991 » Wed Jun 20, 2007 4:01 pm

Hey I like your design and it looks like its going to turn out to be a really nice cannon. But I think it would look cooler if you flipped the stock around like this... but just substitute the valveb for whatever valve your using...
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Unread postAuthor: Jumpin Jehosaphat » Wed Jun 20, 2007 4:09 pm

NoXi wrote:wow thanks a lot jumpin, im going to home depot right now to buy all the stuff. Thanks


Glad to help, I hope your cannon turns out great.
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Unread postAuthor: NoXi » Wed Jun 20, 2007 4:51 pm

Acdcmonkey1991 wrote:Hey I like your design and it looks like its going to turn out to be a really nice cannon. But I think it would look cooler if you flipped the stock around like this... but just substitute the valveb for whatever valve your using...


actually, i think that looks better. Ill do it that way.

Thanks a lot everyone. I bought all the parts right now and im gonna start on it. Ill show u guys what ill look like when im done. Thanks
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Unread postAuthor: Acdcmonkey1991 » Wed Jun 20, 2007 5:13 pm

No problem man :D
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Unread postAuthor: NoXi » Wed Jun 20, 2007 6:27 pm

lol, you helped me the most Acdmonkey.... :sarcasm:
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Unread postAuthor: Jumpin Jehosaphat » Wed Jun 20, 2007 6:52 pm

How much did the parts cost you? I've been thinking about making a copper gun because they look cooler and are safer, but copper costs and arm and a leg.
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Unread postAuthor: NoXi » Wed Jun 20, 2007 7:15 pm

at home depot, they sell 5 feet sections and 10 ft sections so i bought 5 ft for 13 bucks. All i had to buy was 3/4" copper pipe for 13, 90* for 97 cents each, tee for like 1.78, end cap for .79 , ball valve for 8, gauge for 8, and thats about it. I already had 1/2 copper pipe so ya. so it came out as like 41 bucks total.
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Unread postAuthor: Jumpin Jehosaphat » Wed Jun 20, 2007 7:19 pm

Did you remember to get a schrader for your chamber?
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Unread postAuthor: NoXi » Wed Jun 20, 2007 7:21 pm

well i jus got it off a old bike tire and i put jb weld on it right now so it is drying right now
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Unread postAuthor: Jumpin Jehosaphat » Wed Jun 20, 2007 10:52 pm

That should work, but may leak. That is the same thing I used on my cannon, and it barely leaks, but I may just replace it with a threaded fitting if I ever find one or get around to it.
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Unread postAuthor: NoXi » Wed Jun 20, 2007 11:34 pm

oh, where would i find a threaded schrader valve

edit:: I just bought one on BCARMs. for 7.65 including shipping
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Unread postAuthor: TurboSuper » Thu Jun 21, 2007 8:31 am

Tubeless tire valves (teardrop shaped) are actually better and more readily available than their threaded cousins.

Basically just pull the narrow end through, that way the pressure actually helps it seal better.

A sprinkler valve is very easy to modify.

1. Drill a hole in the center of the valve, you can take the cover off to avoid drilling into the diaphragm.

2. Screw a close nipple with some teflon tape into the hole you just made. You may have to trim a bit off the end of the nipple so it doesnt obstruct the diaphragm.

3.Screw your general pipe fittings onto the end of the close nipple. I used a 90 Degree elbow and a blowgun.

4. Remove the solenoid and fill the hole with JB Weld.
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Unread postAuthor: chaos » Thu Jun 21, 2007 8:48 am

TurboSuper wrote:Tubeless tire valves (teardrop shaped) are actually better and more readily available than their threaded cousins.


sorry but that is not true, i nearly had one pop out of its hole into my hand, they are only rated to 60psi
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Unread postAuthor: NoXi » Thu Jun 21, 2007 10:33 am

how much are threaded ones rated for?
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