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Pneumatic repeater....

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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Pneumatic repeater....

Unread postAuthor: Ninty2lxcoupe » Sun Jun 20, 2010 10:17 am

I have built two Pneumatic cannons and i love them. The only problem i have with them is the fact that i have to keep the air compressor going and having to keep filling it back up. Is there anyway to use air or C02 out of a paint ball gun to keep shooting without having to refill all the time.... If there is a way would someone help me out. I have tried searching and i evidently cant use the search correctly because it never looks up what i put in the search bar..

Thanks in advance
CJ
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Unread postAuthor: jackssmirkingrevenge » Sun Jun 20, 2010 12:03 pm

What sort of a valve are you using?
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Unread postAuthor: Ninty2lxcoupe » Sun Jun 20, 2010 12:08 pm

Well I thought of using a sprinkler valve. But I do not know if the valve will close after it shoots. I have had problems with those valves not wanting to close until all the air is out of the chamber. I was wanting to use a Paintball cylinder.. I guess i could use a separate chamber connected to the Paintball cylinder with a shutoff valve in the line..
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Unread postAuthor: clemsonguy1125 » Sun Jun 20, 2010 12:15 pm

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That is all.
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Unread postAuthor: jackssmirkingrevenge » Sun Jun 20, 2010 12:20 pm

Given enough flow, a sprinkler valve should reseal once the pilot is closed. You can also assist matters by including a spring to help the diaphragm shut.

You'll definitely need a regulator to keep things at 150 psi or so if you're using a sprinkler valve though.
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Unread postAuthor: grock » Sun Jun 20, 2010 11:45 pm

i use a co2 tank>remote line (tank is back mounted for airsoft)>regulator> paintball thread to NTP adaptor>quick connect> chamber. i get alot of shots, and my field also has paintball, so i get all day co2 for $10. itts also the most portable system (or swap the tank for an HPA one) unfortunetly, the setup is worth around $300, so its a little pricey
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Unread postAuthor: Gun Freak » Mon Jun 21, 2010 10:03 pm

If you want a cheaper setup you can use propane to fill your tank, but I don't know if it would have a negative effect on your diaphragm if you do end up using a sprinkler valve.
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Unread postAuthor: kydavies » Mon Jun 21, 2010 10:09 pm

have a regulated co2 tank connected with a bal valve to your main chamber so for every shot just open the ball valve until the pressure equalizes then close it ant aside from loading your good to go
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mikemurph wrote:yea, the ammo has been changed to a more aero dynamic projectile. it consists of the back half of a dart, and a hot glue ball
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Unread postAuthor: Gun Freak » Mon Jun 21, 2010 10:12 pm

As for loading, make a breech loader (bolt action, coupler cover) or a simple tee mag.
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