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"The Omega Project" help needed

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: mark.f » Thu Nov 16, 2006 10:50 pm

The rubber coupling, I'm guessing, is to form a better seal against the sealing face on the piston. Although a normal SCH-40 PVC coupling half can be used as well to get similar results.

Unless I'm wrong?
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Unread postAuthor: PVC Arsenal 17 » Sat Nov 18, 2006 4:11 pm

Well I priced the whole deal out... It'll cost around $150!! I'm gonna be piss broke!
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Unread postAuthor: schmanman » Sat Nov 18, 2006 5:02 pm

you think that's bad? try $450-500 bucks, and counting!! :lol: (Tomorrow I need to spend even more, working on a breech)
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Unread postAuthor: PVC Arsenal 17 » Sun Nov 19, 2006 1:46 pm

may I ask what the hell you're building?
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Last edited by PVC Arsenal 17 on Mon Nov 20, 2006 5:13 pm, edited 1 time in total.

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Unread postAuthor: PVC Arsenal 17 » Mon Nov 20, 2006 3:41 pm

EDIT* SCROLL vvvv
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Last edited by PVC Arsenal 17 on Mon Nov 20, 2006 5:13 pm, edited 1 time in total.

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Unread postAuthor: schmanman » Mon Nov 20, 2006 4:45 pm

markfh11q wrote:The rubber coupling, I'm guessing, is to form a better seal against the sealing face on the piston. Although a normal SCH-40 PVC coupling half can be used as well to get similar results.

Unless I'm wrong?


there is no rubber sealing face on the piston. the face of the piston is pvc. the rubber is on the barrel, not the piston.
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Unread postAuthor: PVC Arsenal 17 » Mon Nov 20, 2006 5:12 pm

Yeah we got that

New question:

Now I'm torn between sealing with an actual pipe through the tee or sealing with a bushing like rmich?

what yeilds more power? And will two caps back to back hinder the power as opposed to only one cap?
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Unread postAuthor: schmanman » Mon Nov 20, 2006 5:19 pm

the two caps back to back will lengthen the valve. go with one. just put a bushing in, with a pipe through that. (did I not understand your question?)
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Unread postAuthor: PVC Arsenal 17 » Mon Nov 20, 2006 5:20 pm

OK we worked it out.. I misunderstood his design. Thanks
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