Introduction: Combustion Cannon
This is a simple potato gun. I vaguely followed this (https://www.instructables.com/id/The-Original-Potato-Cannon/) but I found it's better to have a larger combustion chamber. Usually people using a piezoelectric lighter but I found that you have to use less Butane so I incorporated a negative ion generator wired in series with a switch and 9 volt to create a powerful electric arc. Details on this can be found on this instructable (http://www.youtube.com/watch?v=GGx83KppSCQ).
When I ran out of butane I decided to make an air powered cannon (https://www.instructables.com/id/Tennis-Ball-Launcher-1/)
Note- THIS IS NOT A TOY, IT'S A WEAPON, NEVER AIM AT ANYTHING YOU DON'T WANT TO KILL OR DESTROY
I AM NOT RESPONSIBLE FOR ANYTHING YOU DO
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Please be positive and constructive.