Mini Potato/Marble Cannon Project

Boom! The classic potato gun harnesses the combustion of flammable vapor.
Krislachlan
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made a mini Patato Cannon/Marble Cannon.. PLease tell us what you think. this stuff is fairly New to us and how we can improver


<a href="http://s244.photobucket.com/albums/gg17 ... -57-27.png" target="_blank"><img src="http://i244.photobucket.com/albums/gg17 ... -57-27.png" border="0" alt="Photobucket"></a>



Edited by MrC
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cheeseboy
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nice for a first, I hope you properly joined the pipe though i can't see from this picture
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SP00K
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Pretty cool 8) They look pretty good too.
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psycix
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Nice.
Though you could check out the "C:B" ratio the next time you build a gun.
For more information, click Wiki at the top of this page.

How are the barrels connected to the chamber?
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Radiation
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Question is, what do you want to improve?
I void warranties.

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psycix
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Probably performance, ofcourse.
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Krislachlan
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Hey so the Barrels are screwed into the chamber.

And were hoping to improve mainly fire rate.. Its really un reliable
We bought a good sparker for 15$ but it still seams to only shoot when it wants too.
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starman
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Krislachlan wrote:Hey so the Barrels are screwed into the chamber.
And were hoping to improve mainly fire rate.. Its really un reliable
We bought a good sparker for 15$ but it still seams to only shoot when it wants too.
Fire rate? On a basic spray and pray? Sounds like you're looking for consistant shots.

You're probably using too much fuel, a problem much harder to overcome with a smallish chamber like yours. Mutliple spark gaps and a fan can help with consistancy...assuming you get your fueling down pat.

You can come close to tripling your ammo performance with a (lot) longer barrel...4-5' or so.
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psycix
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Chamber fan and propane metering would do well on firing rate, performance and reliability/consistency.
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