really nice idea though, i'd like to see that with 4" chambers and a 2.5" tennis ball barrel

That was the general size specs for the tank/barrel actually. And the auto load plan was in the works for desgin 1.x somewhere after we got the punmatics running. [/quote]

I like the idea of using a piston style valve, though might go with sprinker valves for the first run of the thing. Of course as two crazy engineers goof off at work plans just keep getting bigger and bigger. Monday's plans included computerized remote firing and a mobile firing platform. We are sof...

Here's a design that my friend and I have been working on designing for the last few days and wanted to throw it out to the experts for some feedback. Quad 3" x 36" Tanks each having its own valve. Air supply is fed through flexable hose to the barrel. Barrel is able to recoil back and is brought fo...