huge polish 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.
gabeb123
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Mon Sep 21, 2009 8:48 pm

me and a buddy where talking and would it be possible to build a polish cannon out of 55 gallon drums and shoot a exersice ball out of it or would the 55 gallon drums be way too thin
brogdenlaxmiddie
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Mon Sep 21, 2009 8:51 pm

Stop being a dorkweasel and get your head out of your bum. :)

Think son, think. If your not capable of conceiving the relative forces for that cannon, then you 'ought not be buildin' her. :roll:
gabeb123
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Mon Sep 21, 2009 9:03 pm

thats what i was saying i was putting it here pretty much to make a point to my buddy i hope this will keep him from blowing himself up
brogdenlaxmiddie
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Mon Sep 21, 2009 9:05 pm

Wow, still a fail... Dude, I recommend starting off with something small like a regular 'ol spray and pray. 1 foot x 3" chamber and a 3 foot by 2" barrel.
gabeb123
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Mon Sep 21, 2009 9:12 pm

allready done it i allso got a pneumatic and a regular polish cannon
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jackssmirkingrevenge
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Mon Sep 21, 2009 9:41 pm

Whenever I read "polish cannon" I cannot but think of this unfortunate AC-119 Stinger nose art...
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Moonbogg
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Mon Sep 21, 2009 9:47 pm

I say go for it. I see nothing at all wrong with using a steel barrel to launch excercise balls.
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jackssmirkingrevenge
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Mon Sep 21, 2009 10:15 pm

Moonbogg wrote:I see nothing at all wrong with using a steel barrel to launch excercise balls.
I have (unfortunately) seen sealed steel drums rupture violently due only to volatile solvents inside expanding as a result of solar heat, bowing out and tearing at the seams. They're tough, but internal surfaces are large and there's a lot of force imposed on them even with low pressure.

Not saying this won't work, but caution should be exercised
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Moonbogg
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Mon Sep 21, 2009 10:24 pm

Yeah thats a good point. Remote detonation highly suggested. No hand helds :lol:
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jackssmirkingrevenge
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Mon Sep 21, 2009 10:28 pm

Moonbogg wrote:No hand helds :lol:
That would certainly be amusing, to distant onlookers at least :D
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ramses
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Tue Sep 22, 2009 3:20 pm

You could wrap the tanks in fiberglass. and it would be amusing to see someone hand hold the cannon.
POLAND_SPUD wrote:even if there was no link I'd know it's a bot because of female name :D
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Moonbogg
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Tue Sep 22, 2009 3:28 pm

Screw it, go shoulder mounted and make if 3 barrels long.
gabeb123
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Tue Sep 22, 2009 3:36 pm

ya cuz everyonr can carry those lol no im pretty sure that you might get a shot out of it but i think it is extremely dangerous. today my buddy said if ill help him make it he will supply the barrels and shoot it but i dont think he will be able to get 2 more barrels but if he does ill try to take pictures and post them because that would be really cool looking
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Technician1002
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Tue Sep 22, 2009 8:23 pm

gabeb123 wrote:ya cuz everyonr can carry those lol no im pretty sure that you might get a shot out of it but i think it is extremely dangerous. today my buddy said if ill help him make it he will supply the barrels and shoot it but i dont think he will be able to get 2 more barrels but if he does ill try to take pictures and post them because that would be really cool looking
If you do make one, video would be awesome. :D
gabeb123
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Wed Sep 23, 2009 3:58 pm

i know wouldnt it :) it will take a lot of time and rods to weld it up though
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