well actually the compressed air injection is saving time when i use aerosols. if i spray to much, i just add a little bit of air. then when it fires i can vent with it.

sorry i cant post a vid today.. i had some difficulty putting the right amount of fuel in there and i just ran out. tommorrow or the next day i am going to be going to lowes for some fittings for propane injection and compressed air injection. i have to do all this with out my dad know as he threw o...

the tape is because i dont have any paint at my mothers house, and everything for it was bought for under 30 dollars. i am a minor also. damage vids coming soon, i still have to make ammo.

this is the third cumbustion cannon i built. the chamber is 2 inches wide and about 18 inches long and the barrel is 3/4 inch wide and about 3 feet long. i bought the ignitor from lowes for 10 dollars. here are the pics http://img464.imageshack.us/img464/7201/spud1mc7.png http://img188.imageshack.us...