Lazy day build

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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Juggernaut12121
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Specialist
Posts: 140
Joined: Wed Apr 03, 2013 12:47 pm

Sun Jul 20, 2014 2:12 pm

Today I got pretty bored and decided to throw together a little combustion gun (seeing as my other pill bottle one broke)
Anyway, everything was built from stuff I found in my scrap box (except the stun gun).
Some specs:
Chamber volume: about 60mL
Barrel: (I didn't bother with dimensions) The metal part that makes up the neck of some BBQ lighter
Ignition: Stun gun with screws
Fuel: Butane
Hope you all like it :D
Any questions feel free to ask
5.jpg
Picture of gun with stun gun
Picture of gun with stun gun
Projectile made of screw wrapped in tape
Projectile made of screw wrapped in tape
Fueling with butane and syringe (volumetric metering at 1x)
Fueling with butane and syringe (volumetric metering at 1x)
Update:
I ran out of butane so I've gone on to propane (I didn't use it in the first place since fueling with butane was easier and more gas efficient rather than leaky like my ghetto propane setup)
I've also taped the taser to the body of the gun to make a sort of pistol grip (only taped on since I want to use the stun gun for other things as well)
Syringe setup
Syringe setup
The new fugly gun
The new fugly gun
Whatever the mind can conceive and believe, it can achieve