I just stumbled across the site and figured i'd share my simple tater guns
I built the larger one first about 3 years ago when i was 16. 4"chamber to a 2" barrel. Ive had a ton of funwith it but it was hard to take anywhere if i didnt have a truck to use so i went and bought some reducers and made my smaller one. Its a blast! 4" chamber to a 1.5" barrel this time.(great for FREE crab apples and 1/2 potatoes)
My ignitor isnt in either picture but i use the same one for both. I used a bbq ignitor in a threaded end cap. I use a crimp-on electrical terminal with a nail jammed into it for a more reliable spark off the side of the ignitor.
Ive made one of each for my cousin also.
Ive been looking over instructions on how to build a pnuematic tennis ball gun and hope to give that a try with in the next few weeks but being away at schools kinda limits me.
Thanks for looking guys[/img]