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couple of piston questions

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couple of piston questions

Unread postAuthor: Pilgor » Wed Apr 02, 2008 5:51 pm

I am planning on using a hockey puck as a piston. I have a few questions first.

1) would a hockey puck weigh to much 5.5 and 6 ounces (156-170 g)?

2) A hockey puck is 1" thick, would it be thick enough?

These are probaly the last of my noob questions, thank you for all who helped me.
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Unread postAuthor: pat123 » Wed Apr 02, 2008 5:53 pm

Yes it wieghs to much. and i don't think it is thick enough. it really depend on your gun design.
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Unread postAuthor: pizlo » Wed Apr 02, 2008 7:41 pm

This is for a Coax? And lighter is always better I suppose you could bore out the back and add a sealing face to it, but why not just make one of wood, or another light material?
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Unread postAuthor: bigbob12345 » Wed Apr 02, 2008 7:43 pm

no even close to thick enough
the thickness sould be equal to the length at least.

But a couple hockey pucs screwed together should do the trick
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Unread postAuthor: pat123 » Wed Apr 02, 2008 8:01 pm

But a couple hockey pucs screwed together should do the trick

way to heavy i think.
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Unread postAuthor: bigbob12345 » Wed Apr 02, 2008 8:04 pm

true
so I would just reccomend a better piston material,peanut butter jars fit in 3in pipe(same size as hockey pucks)fill it with expanding foam and you should be good to go.
I got that from this other guy that did that,ill see if I can get a link
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