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O-ring on a homemade pump.

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: elitesniper » Sun Jan 06, 2008 10:51 pm

how bout get sch 80 pvc since it fits marbles well and paint it copper color haha :lol:
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Unread postAuthor: Mitchza89 » Sun Jan 06, 2008 10:55 pm

Haha that works. Well with the copper pipe, my mate bought some to try and make a pump but he didn't have any luck with the o-rings but that doesn't mean I won't have any :D
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Unread postAuthor: FordGtMan » Sun Jan 06, 2008 11:14 pm

Try asking Ragnarok, he made a copper pump for his HEAL.
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Unread postAuthor: Mitchza89 » Sun Jan 06, 2008 11:15 pm

Yeah I was thinking that but I don't wanna bother the bloke. Because of his gun, he would have had so many comments about it all.
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Unread postAuthor: cwazy1 » Sun Jan 06, 2008 11:48 pm

well you know what if you put orings into really hot water, they loosen up so u can hella stretch them right??
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Unread postAuthor: SpudMonster » Mon Jan 07, 2008 1:18 am

cwazy1 wrote:well you know what if you put orings into really hot water, they loosen up so u can hella stretch them right??


I'd recommend getting the right size o-ring instead. Unless you're talking about heating them so they will stretch over a certain area of the piston to fit into the groove.
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Unread postAuthor: cwazy1 » Mon Jan 07, 2008 1:22 am

yeah thats what i mean. . . like i can get a 1/2" oring and it would be abel to stretch over a 1" pipe.
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Unread postAuthor: Novacastrian » Mon Jan 07, 2008 1:29 am

Just so you know Bunnings stocks a large range of Aluminium tube.
Just not the sized i wanted the other day!
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Unread postAuthor: Hawkeye » Mon Jan 07, 2008 8:00 am

Thick walled cheap copper? That doesn't sound right. Copper these days is too expensive to make it unnecessarily thick. Where are you located?
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