First Cannon

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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AlbinoSpud
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This is my first cannon, yeah.... it's bad, but at least it works :wink: and I made homemade ballistics gel which was fun :D
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the gun >.>
the gun >.>
The bullet in the gel, can't see much though, the gel turned out a little foamy...
The bullet in the gel, can't see much though, the gel turned out a little foamy...
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DYI
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You need to use steam in that thing... It could be done with no modifications, and could give it decent power if you added a longer barrel.
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AlbinoSpud
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i might, i have those heat gloves for moving those fire logs, so maybe, but won't it rust?
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DYI
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If you use galvanised it won't rust. I've only used steam guns up to 160 psi, due to my lack of any good sealing face materials for high temp, but steam is usually similar to hydrogen in performance for a given pressure, sometimes moreso.

Whatever you do, don't expect any wonderful performance out of a gun this size without light gases and thousands of psi.
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AlbinoSpud
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yea its for me to shoot at my room so i really don't want it going through my wall :P
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blind909
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i like small, compact guns like this. 2 thumbs up, what pressure do u opreate it at?
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AlbinoSpud
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100, 200 psi. i can go higher but my arms hurt after 250 :? :D
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Carlman
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so you shoot 250psi in your room?! lol, what do you shoot?

anyway nice gun, thats like exactly what my first gun would of been like but i chose to make an 8' GB gun instead lol :D
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AlbinoSpud
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i shoot darts at my homemade ballistics gel which is in front of wood so i'm safe unless i pump it to 400 psi which is my pump limit :D :D :D

I used the one on the right
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[youtube][/youtube]
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Isomer
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thats some impressive power-especially with a ball valve gun
how close is that ballistics gel to the original?
If it's close, you're putting out some real force there!
grats on first cannon
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AlbinoSpud
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its pretty close, like i can jump on it, but idk how to tell how close it is so i'm just guessing :P
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jackssmirkingrevenge
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Nice an simple, a much longer barrel will produce more impressive results though, especially at those pressures.
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AlbinoSpud
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I would but i'm out of money, so next time i get my money, i will
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bigbob12345
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Very nicely done for a first cannon.
My first was similar to that it was just configured in a different way.
And where did you get a pump that goes to 400 psi?
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Hotwired
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Shock pumps do that easily. Get one with a gauge.
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