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foam piston?

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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foam piston?

Unread postAuthor: SilentCyan » Tue Sep 02, 2008 2:19 pm

would it be possible to construct a piston entirely out of closed cell foam? has anyone tried this out before and if so did it work out okay?
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Unread postAuthor: Biopyro » Tue Sep 02, 2008 2:58 pm

Closed cell foam would be crushed because the air bubbles inside would have a lower pressure than the chamber.
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Unread postAuthor: ALIHISGREAT » Tue Sep 02, 2008 3:22 pm

has used foam on the inside of one of his pistons (i think) then casted epoxy around it (well as it invloves epoxy he probably has :D )
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