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2" Piston Valve

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: dapallox1 » Mon Oct 22, 2007 5:56 pm

Some of the screw holes aren't that close. And I just added a spring to the piston. And what back plug? There is the barrel port, and the chamber port.
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Current Project: 4" Tee Piston Valve
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Unread postAuthor: Lentamentalisk » Mon Oct 22, 2007 6:35 pm

dapallox1 wrote: ...what back plug? There is the barrel port, and the chamber port.


since your piston fits in so loosely, when it slides open, lots of air from the chamber can escape out through the pilot, as opposed to down the barrel. the simple solution of course is just to make a better fitting piston.
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Unread postAuthor: unisonmind » Mon Oct 22, 2007 8:19 pm

by back plug i mean the bushing that you have screwed to the tee how are you going to seal that
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Unread postAuthor: dapallox1 » Mon Oct 22, 2007 8:33 pm

Lentamentalisk: I've already said that I was going to make a new, better fitting, piston. I just haven't the time right now.

unisonmind: Oh, you mean around it? An O-ring and Teflon tape
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Unread postAuthor: origin unknown » Mon Oct 22, 2007 9:32 pm

Add a short length of 2" pipe inside the tee so you can use a 1 1/4" coupling for a piston.
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Unread postAuthor: dapallox1 » Mon Oct 22, 2007 9:38 pm

Yeah, after I test it, I'll modify it a bit until it works well.
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