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This is an instructable on how to make a small spud-gun out of film cans, that shoots BB bullets
Warning:
Don't shoot or aim at people or animals, the bullet really has a high velocity, and it will hurt a lot!
Always wear eye protection when firing the spud gun.
I am not responsible for any accidents.
Warning:
Don't shoot or aim at people or animals, the bullet really has a high velocity, and it will hurt a lot!
Always wear eye protection when firing the spud gun.
I am not responsible for any accidents.
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Signing UpStep 1How it works
When pressing the button on the piezoelectric igniter, there will be a spark inside the combustion chamber because the electrons will jump from one to the other terminal. (High voltage will make the 'air' conductive).
The spark generates heat, which ignites the fumes of the deodorant that you've sprayed in there. The igniting fumes will make the gas expand and build up pressure inside the combustion chamber. When there is a higher pressure at the inside than at the outside, the 'air' from the inside wants to get to the outside. There's only one way to go, and that's trough the tube.
The tube is blocked by our BB bullet, so it will get pushed out of the tube at a high velocity.
The spark generates heat, which ignites the fumes of the deodorant that you've sprayed in there. The igniting fumes will make the gas expand and build up pressure inside the combustion chamber. When there is a higher pressure at the inside than at the outside, the 'air' from the inside wants to get to the outside. There's only one way to go, and that's trough the tube.
The tube is blocked by our BB bullet, so it will get pushed out of the tube at a high velocity.
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