Kyle1292 Piston Valve Thread

[kyle1292]

hi, i was wondering how a piston valve works and if any1 had plans to make 1 becuase i want to put 1 in my next cannon. THX

[This is just a note to who ever may be 'confused'. The users 'kyle1292' posted 4 seperate posts regarding piston valves were combined.]

[noname]

Just look at the animations right <a href="http://forums.spudtech.com/topic.asp?TOPIC_ID=13265"> HERE.</a>

[kyle1292]

THX that hepled ALOT

[kyle1292]

how do u make a piston for 1 1/2" pipe

[SpudStuff]

1" Cap with neopreme bolted on.

[judgment_arms]

Um, yeah… doesn’t work, just tried it, 1” cap doesn’t fit in 1.5” PVC.
I’m in the process of trying to figure out the same thing. I cut two disks of 1/2” birch cabinet grade plywood, bolted together and a neoprene fender washer I got at home-depot. I had to wrap it in duck-tape to make it work at all. But it still doesn’t work two well… say, does anybody know what I did wrong?

[squeaks]

you could lathe a 2x4 down to 1.5" and screw on a sealing face. Plus you can make it as long as you want to decrease pilot volume.

[judgment_arms]

Yeah that’s a great idea. Except I don’t have a lathe and uh, would it not be hard too turn a 2x4, not to mention a waist? Or was that a joke?

[squeaks]

first you would cut a bit off of the 2x4, or you could use a 2" dowel/post. Second, doesn't your local school have a lathe?

[judgment_arms]

Don’t know, I’m home-schooled.
Does the piston have to fit tight?

[Infernal2]

Pretty much. You could also use the Making A Piston Video in the BCVIDS Sticky.

[kyle1292]

hey i was wondering where i can get neoprene for my piston?

[SpudStuff]

Hardware stores, bike tubes, tupperware, ect...

[kyle1292]

hi im making a piston for my pneumatic im building and i was wondering were i can get neoprene or if there is anything elso that would sela it well

[SpudStuff]

Any rubber surface. Use your imagination.