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The plunger head part is a CS style washer head, held onto the CPVC endcap via a 1/4" screw with a nut on the inside.
The cap is held onto the CPVC by two small screws on both sides.
The catch "Notch" as I call it is a small peice of 1/2" PVC, grinded down on the outside into a somewhat cone shape. I also drilled out the inside with a 5/8" Drill Bit. I then glued it one with PVC cement, and drilled a hole through both sides for a screw. I screwed in the screw, and cut off the head, filed it down, so it is flush with the PVC.
I made a hole in the back of the shell for the new rod to extend out of, this making it prime like a Crossbow.
I still need to cut down the CPVC, and attatch a Tee or something as a handle. Some very rough testing shows that it does work, but it still needs some work to make it function more smoothley. And the spring is a cut down +bow spring, also.
Edited by venom213, 03 August 2009 - 04:13 AM.