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Pistons for pneumatics?....
Posted: Fri Jun 09, 2006 4:00 pm
by metabolicmaggot
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.
Posted: Fri Jun 09, 2006 4:37 pm
by Benny
what sise piston do you want......
Posted: Sat Jun 10, 2006 12:13 pm
by metabolicmaggot
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.
Posted: Sat Jun 10, 2006 12:21 pm
by )DEMON(
How about an end cap?How much work are you planning to do on the piston?
Posted: Sat Jun 10, 2006 1:28 pm
by djt
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.
Posted: Sat Jun 10, 2006 10:38 pm
by Atlantis
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.
Posted: Wed Aug 02, 2006 11:45 pm
by spudkpi
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.
Posted: Sat Aug 05, 2006 3:36 am
by L.J.R
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]
Posted: Sat Aug 05, 2006 6:00 am
by Brian the brain
Just use a long bolt and some washers and nuts.
I---I <--like that
Posted: Sat Aug 05, 2006 6:12 am
by MrCrowley
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
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?
Posted: Sat Aug 05, 2006 11:23 am
by noname
Or SCH 80.
Posted: Sat Aug 05, 2006 4:11 pm
by MrCrowley
Or SCH 120.
WTF how did you get away with your post noname it says mine is to short
Posted: Sat Aug 05, 2006 4:40 pm
by Velocity
or metal
Posted: Sat Aug 05, 2006 6:00 pm
by MrCrowley
Doesn't it say your post is too short?or does this just happen to me?
Hard to find a metal 3" Tee
Posted: Sat Aug 05, 2006 10:19 pm
by noname
I put spaces after.