My plunger slides over the guiderod, greatly reducing mass and removing that pesky rod sticking out the back of your snap 1. It's made out of a X -> 0.5" bushing with a drilled out endcap as a catch and an O ring sandwiched between sch80 0.5" pvc to seal against the guiderod.
The guiderod is sealed at the end with plumbers goop.
With this setup you can easily recreate something similiar to Carrtoons Tec 9. Just remove the cotter pin, unseal the brass, and glue on a combination of brass and pvc as an outer stop.
Edited by quiet asian man, 22 June 2008 - 05:01 PM.