Neoprene sheets

[Arborman]

I have always wanted to make a nice piston valve, but the only one I knew how to make required a lathe. I don't have a lathe.

I want to make a three inch version of Brian the Brain's no o- ring piston valve. http://www.spudfiles.com/forums/viewtop ... 385b5e4161

I know I can get the sheet from mcmaster, but I do not know which one will work.

[chaos]

heres what mine looks like:

-uses rubber washers instead of o-rings.

[Arborman]

That is a pretty sweet design

Anyone have an answer to my question?

[CS]

Using Chaos's design, you would not need to purchase a neoprene sheet. If you have a different design in mind however, I would suggest something like:

• 1/8" thick
  60A-70A Durometer Rating
  Smooth on at least one surface
  No need for any under strict tolerances (they will just cost more)

[Arborman]

will this work?
8568K714

[CS]

Yes, it will. Although here is something that is about half again as cheap:

9455K874