Tennis Ball Cannon

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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Velocity
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Sat May 31, 2008 3:44 pm

Very nice gun. I would recommend lowering the C:B ratio a bit. This is not to gain greater distance through greater efficiency; however, greater efficiency will lead to less noise, which is less likely to scare the dog when you fire the tennis ball. Though, I have never fired a combustion before, so I do not know whether this will be an issue or not. Great build.
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singularity
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Sun Jun 01, 2008 8:38 pm

yea i know the ratio is way off but i want to keep the cannon small and the gun has already been cut down once. i just figure i will mess with the propane mix until the desired power is reached (ie a greater than 4% ratio)
be sure to check out my <a href="http://www.spudfiles.com/forums/ak-styl ... 9.html">AK Styled Vortex Gun</a> and my <a href="http://www.spudfiles.com/forums/at-4-t9627.html">AT-4 Rocket</a>

upcoming projects... finalized clip fed BBMG and ball point pen sniper
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Demon
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Fri Aug 29, 2008 4:49 pm

I am too much jealous, i will never be able to do so clean assembly.

i talk when you put fittings together, i always put a little bit of my grey cement on the canon.

is there a trick do dont mess up with cement?
plz let me know!
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