Delrin Rod

[Gippeto]

IMO, teflon is a far better material for transfer ports than delrin....going to be difficult to get it "just right" without machine tools.

Suggest you undercut one or both ends with a countersink or large drill bit...that'll help with establishing a seal and not having it crush. Hold the part in split wood blocks for drilling/undercutting.

Al

[Doc Sharptail]

So, another voice of experience speaks. Great!

I do have access to a so-so drill press. I've done some crude machining with it- cutting spring steps on valve stem bases, making brass pistons, etc...

The idea is to get port restriction, in a simple manner.

Would teflon be easier to work with?

Johnston is selling AC-2 Delrin, which is 22% Teflon...

Regards,

Doc Sharptail