Gallery, Projects and General > How do I??

Stainless Oscillating Pistons?

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sbwhart:
That was very interesting bit of info John

Thanks

Stew

Stilldrillin:
By `ek John!

That were a mind blast!  :clap:

Much appreciated, thank you.   :thumbup:


I always re sleeve pistons to a nice fit in the cylinders, as a matter of course.......
I`ve been looking at piston lengths this morning...... Don`t have much leeway......  ::)

Guess I could make longer pistons, & chamfer the piston "side" to clear the port area........


PTFE sounds good to me. I never gave plastic a thought!  :scratch:

Is that what we called Delrin, when I was working?.......... I`ve got a bagfull of it under my bench!  :)

Thanks Guys for your input.

David D.

Darren:
Hi David,

Delrin is a different material, lower melting point and nowhere as slippy. It also absorbs water and swells, but not much. Mechanically I don't think it would stand up to the abuse, esp at the gudgeon pin area.

PTFE is really slippy, I have a 50mm section about half a meter long. You have to hold on to it tightly or it will slide right out you hand  :ddb:

bogstandard:
Source for PTFE and other small stuff. they are all much of a muchness on price and postage. This is one fairly local to me.

http://www.nogginend.com/index_files/Page2153.htm

John

Do have a look at the train set at the bottom of the home page.

Stilldrillin:
Many thanks John,

Just sent `em an order.

I like the idea of plastic pistons........  :thumbup:



LOVE that train set!!!  :headbang:


 :lol: :lol: :lol: :lol: :lol:

David D

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