Pistons for pneumatics?....

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metabolicmaggot
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Can someone give me a bunch of good ideas for pistons?

I know I want my design to have a piston, but I'm just looking for the best way to do it.
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Benny
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what sise piston do you want......
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metabolicmaggot
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I was hoping for 2.5" but then I thought I would go with the spudzooka design which is 1.5", so I'll just take what ever the best design is.
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)DEMON(
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How about an end cap?How much work are you planning to do on the piston?
Last edited by )DEMON( on Sat Aug 05, 2006 3:40 am, edited 1 time in total.
Forever dreaming...
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djt
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i made a 1.5 inch piston out of epoxy the other day for my coaxil piston. the gun is drying now so i cant tell you how well it worked yet but i just put a piece of 1.5 inch pvc the lenth i want my piston to be on a sheet of rubber and filled with epoxy. after it dried i cut the mold off, sanded it so it fit in the pipe and bolted on the rubber.
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Atlantis
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Would that foam that hardens work if you made it in a mold?

My friend's dad broke one of those today while we were there and he held the hole closed and threw it outside, the can was completely encased in a mountain of foam.
"There isn't a problem in the world that can't be solved by the proper application of explosives"
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spudkpi
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I created an endcap piston today from a neoprene washer backed with hotglue disc and bolted to an encap but it slowly leaks into the barrel... any suggestions? The piston is 2'' and uses a 1-1/4'' endcap.
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L.J.R
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Would that foam that hardens work if you made it in a mold?

My friend's dad broke one of those today while we were there and he held the hole closed and threw it outside, the can was completely encased in a mountain of foam.

It's called expander foam where I live I believe it is too soft and light, but I have never made a piston.[/code]
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Brian the brain
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Just use a long bolt and some washers and nuts.

I---I <--like that
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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MrCrowley
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Im using a metal can slightly longer then a Pringles can but alot stronger so i might stick a bolt through to hold the rubber on and fill the can with foam :D are 3"tees expensive?and i need a 3"bushing into a GB size barrel which may be hard to find.
And last thing do all parts need to be sch40?
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noname
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Or SCH 80.
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MrCrowley
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Or SCH 120.

WTF how did you get away with your post noname it says mine is to short
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Velocity
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or metal
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MrCrowley
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Doesn't it say your post is too short?or does this just happen to me?
Hard to find a metal 3" Tee :D
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noname
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I put spaces after. :D
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