O-ring on a homemade pump.

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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elitesniper
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how bout get sch 80 pvc since it fits marbles well and paint it copper color haha :lol:
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Mitchza89
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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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FordGtMan
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Try asking Ragnarok, he made a copper pump for his HEAL.
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Mitchza89
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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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cwazy1
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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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SpudMonster
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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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cwazy1
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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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Novacastrian
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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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Hawkeye
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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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