Please evaluate my canon.

Boom! The classic potato gun harnesses the combustion of flammable vapor.
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GreenLumos
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Barrel 2" = 90 cm
Chamber 4" = 50 cm
guy claims up to 25 bars pressure <-- i think he's an idiot
4mm thickness PVC equivalent of sch30 4" / sch40 2", no idea which type of PVC though
pipe has no writings to rate pressure..

typical spray and pray with end cap
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warhead052
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What's with all the tape? Please tell me that its not holding the cannon together. If it is, scrap it and rebuild. Other than the tape it looks pretty good.
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evanmcorleytv
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It looks fine!! But it will not hold 25 BAR.
Last edited by evanmcorleytv on Tue Jan 31, 2012 5:19 pm, edited 1 time in total.
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Daltonultra
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What in the names of the gods is that brown goop being used as glue?
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"There is no such thing as overkill." ~Solomon Short
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evanmcorleytv
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Daltonultra wrote:What in the names of the gods is that brown goop being used as glue?
Orange PVC cement.
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GreenLumos
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Orange PVC Cement indeed....the tape is for incase it explodes, to reduce sharpnel.

it fired the cement gas...twice, but couldn't propagate a spark afterwards. back to the drawing board.
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