My plain jane 2nd 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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spudmatic
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Posts: 32
Joined: Fri Apr 11, 2008 5:11 pm

Sun May 18, 2008 4:25 pm

Here is my 2nd cannon and I decided not to go too crazy but chamber fan and metered propane soon to come. Oh, and a red laser mounted to a rail at the chamber end of the barrel, currently waiting on laser.

There is no paint on the gun it is all black and red electrical tape because I do not have the patience to wait for paint to dry :D .

It is powered by a 150kv stungun with 4 sparks.

Then your normal 4in chamber to 2in barrel. I dont know how true this is but to me shooting 2in spuds seems to be more fun then 1.5in.
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From end to end gun is 4' 9" with a 16" chamber
From end to end gun is 4' 9" with a 16" chamber
all 4 sparks
all 4 sparks
150kv cheetah stungun with soldered contacts
150kv cheetah stungun with soldered contacts
The definition of spudcannon should include combustion, if I wanted to shoot a pneumatic I'd go get my paintball gun.
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daxspudder
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Posts: 300
Joined: Thu Apr 24, 2008 10:22 pm

Sun May 18, 2008 4:34 pm

I wouldnt call this plain, there is much simpler on the site. I like it and the paint job is clean, but you severly weaken your chamber the way your screws for the spark gap are placed, great job on the successful angling of your spark gap screws, but on any future build the safest place to put them is in the couplings where it is twice as thick. nice build, add a handle or something.


EDIT: to be the first to warn you, the DWV police are gonna getcha
Last edited by daxspudder on Sun May 18, 2008 4:44 pm, edited 1 time in total.
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spudmatic
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Posts: 32
Joined: Fri Apr 11, 2008 5:11 pm

Sun May 18, 2008 4:41 pm

Yes, your probably right I should have added a coupling but was very hard to get all four gaps close enough.

Future plans: SPARK STRIP
The definition of spudcannon should include combustion, if I wanted to shoot a pneumatic I'd go get my paintball gun.
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