2x 1/2" CPVC couplers
1x 1" CPVC coupler
1x 1" CPVC Tee
1x 1" Male Adapter
1x 1" Female Adapter
1x 1-3/4" CPVC Reducer
1x 1-1/2" CPVC Reducer
5/8 OD Rubber Gasket
Small Bolt, Washer and Nut
4x 7/8" x 4" springs (others could work, just make sure they are nearly the same ID as the OD of 1/2" CPVC)
Cost - If you start from scratch about 20$
http://www.freewebs....inghomemade.htm for picture (It's a gif now, and about 140 times smaller [really!] )
Okay, first measure out the length of your springs. Then, take a piece of 1/2" CPVC about 2' longer than your springs. Glue a coupler to one end. Now, Glue your 1-1/2" Reducer to one side of your 1" coupler. Leave that for a while. Then, Glue your male adapter to one side of the 1" Tee (NOT the alone side). Then glue your 1-3/4" Reducer to the female adapter. Finally, measure out a piece of 1" CPVC that ends up a little shorter than the springs after the Tee and Coupler are attached (The whole assembly will be slightly shorter than the springs. Then, take your gasket, run your bolt through it, and but the nut in to keep it in place. Take this, wrap electrical tape around the bolt until it fits snugly into the 1/2" coupler. Then epoxy it to the coupler end of your 1/2" CPVC. Take your 1" Coupler and glue it to one end of the 1" CPVC you cut earlier. Glue the Tee (NOT the alone part) to the other end. Then, put the springs over the 1/2" CPVC, and slide it into the 1" CPVC, gasket end towards the coupler. Finally, screw the female adapter into the male adapter. now you should be able to pull the CPVC back and release it! This makes the gun work. Almost done now. Finally, cut a small piece of 1" CPVC and glue it into the alone part of the Tee. Now, take a piece of 1/2" CPVC for your barrel. Congradulations! You have a breach loading, spring-powered homemade.
I have been made aware that Frost Vectron did indeed make spring weapons. i took a look at his site, and while he was probably the first, i think i improved upon the method.
Edited by texmustache, 19 April 2004 - 07:40 PM.