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Yes or no question.

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Yes or no question.

Unread postAuthor: )DEMON( » Mon Jul 03, 2006 8:49 am

Can you use a bouncy ball as a piston?
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Unread postAuthor: Urban Ninja » Mon Jul 03, 2006 9:00 am

I would say yes. As long as you use O-Rings Im sure it will work perfectly.
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Unread postAuthor: frogy » Mon Jul 03, 2006 10:29 am

You cant put orings on something round.... Maybe 1 o-ring, but that's stupid...

You don't need o-ring if it pretty close fit, try holding a peice of pipe straight up in the air, put your piston in it, blow from the end you put the piston in while the pipe is straight up, if your piston moves up it's definately fine, if it moves a little it'll be fine, if it just stays there it'll probably need o-rings...

It's a crude way of testing, but it's worked for me :D

I think the bouncy ball would seal against the barrel good too....
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Unread postAuthor: )DEMON( » Mon Jul 03, 2006 11:06 am

What can I use for a piston to fit 75mm pvc?The inside of the pipe is about 70mm.
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Unread postAuthor: Atlantis » Mon Jul 03, 2006 11:41 am

http://www.spudfiles.com/forums/viewtopic.php?t=261&

Look halfway down the page, Galfisk thought this up.
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Unread postAuthor: )DEMON( » Mon Jul 03, 2006 2:24 pm

Wow that guy has already thought up some of the stuff we came up with,it is like the long lost relic of sudfiles.
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