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SpudFiles Forum Index » Pneumatic Cannon Discussion » "The Omega Project" help needed
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markfh11q
PostPosted: 11/16/2006 21:50 PM    Post subject: Reply with quote

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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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PVC Arsenal 17
PostPosted: 11/18/2006 15:11 PM    Post subject: Reply with quote

WITTY PHRASE
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Well I priced the whole deal out... It'll cost around $150!! I'm gonna be piss broke!
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schmanman
PostPosted: 11/18/2006 16:02 PM    Post subject: Reply with quote

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you think that's bad? try $450-500 bucks, and counting!! Laughing (Tomorrow I need to spend even more, working on a breech)
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PVC Arsenal 17
PostPosted: 11/19/2006 12:46 PM    Post subject: Reply with quote

WITTY PHRASE
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may I ask what the hell you're building?

Last edited by PVC Arsenal 17 on 11/20/2006 16:13 PM; edited 1 time in total
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PVC Arsenal 17
PostPosted: 11/20/2006 14:41 PM    Post subject: Reply with quote

WITTY PHRASE
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EDIT* SCROLL vvvv

Last edited by PVC Arsenal 17 on 11/20/2006 16:13 PM; edited 1 time in total
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schmanman
PostPosted: 11/20/2006 15:45 PM    Post subject: Reply with quote

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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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PVC Arsenal 17
PostPosted: 11/20/2006 16:12 PM    Post subject: Reply with quote

WITTY PHRASE
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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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schmanman
PostPosted: 11/20/2006 16:19 PM    Post subject: Reply with quote

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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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PVC Arsenal 17
PostPosted: 11/20/2006 16:20 PM    Post subject: Reply with quote

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