I gotta make one http://www.youtube.com/watch?v=CpAJOPzKK-M

 

Combustion Potato Cannon's are for Cave-men. My friend and i made one that ran on compressed air. 2 expansion chanbers that could hold up to 200 PSI total. necked down to one tube with an electric valve from a sprinkler system holding the air back. a 9 volt battery, a few wires to the switch and poof... 200 yards easy. and NO MISFIRES!

 

cave men??...at least cavemen with a huge *** gun!!..lol

http://www.youtube.com/watch?v=sdFK5eVmZ3o

i have a smaller one(about 6 feet long) but ive gotta make one this big!!

 

HAHAHAAHHA!!!!! If the neighbors didn't hate our 3-bike household before, they're REALLY gonna hate us after we make a few of these.

 

Priceless, I go for the cannon myself. I can't believe that no cops were called, those things are lowd as hell. Screw aquanet...I use starter fluid myself.

 

thats funny stuff.....i made one when i was a kid, but my lighter sucked, so i lost interest fast. i should make another one. hell ive got 19 acre's of land, what else is there to do.

 

Never had a spud gun, however we did make tons of Works bombs.
Educational purposes only: get an empty 2 liter soda bottle, pour a few ounces of Works cleaning solution in it, throw in a few crumpled aluminum foil *****, screw cap tightly on bottle, and throw! BOOM! Had the cops called on us more than once with those.

 

Now that's a gun!

 

be sure you use pressure rated pvc (red letter) foam core will shatter in your face,,,still not the safest thing but definately use red letter pressure pvc with pressure fittings (sorry the plumber coming out of me)they are a blast we do it all the time

 

Looks like the original guys were using dwv fittings too.