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Two basic combustions

Built a combustion cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Two basic combustions

Unread postAuthor: homedepotpro » Sun May 20, 2007 3:46 pm

the bottom one has a 3'' chamber and a 2'' barrel it is about 3.5' long, made of abs. i get about 120 yards with a spud
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the top has a 6'' chamber and a 3'' barrel, the barrel is abs and the chamber is pvc, i know doesn't sound safe but its only hair spray, im not going to put a propane injection system on it. anyways, this one is LOUD, makes my ears ring. the pump is used for venting.

hers some more pics

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Unread postAuthor: Velocity » Sun May 20, 2007 4:46 pm

Wow, those are really interesting looking, especially the gold one! I am not sure how safe they are, with PVC bonded to ABS...
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Unread postAuthor: homedepotpro » Sun May 20, 2007 4:58 pm

the black one is perfectly safe but the gold one make me a little scared
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Unread postAuthor: hi » Sun May 20, 2007 6:35 pm

cool, that thing looks so cool. the smaller one is ehhh, ok, but the big one is (sic). very nice.
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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Unread postAuthor: iknowmy3tables » Sun May 20, 2007 7:04 pm

the big one is very cool, I'll trust you on the connection, it looks very cool and fun. I surprised you could get 6" pvc but not 3"pvc
only thing I don't like is the cheap stick lighter ignition, but the handle is good

and the smaller one is nice, but the handle looks backward :lol:
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Unread postAuthor: homedepotpro » Sun May 20, 2007 7:12 pm

iknowmy3tables wrote:the big one is very cool, I'll trust you on the connection, it looks very cool and fun. I surprised you could get 6" pvc but not 3"pvc
only thing I don't like is the cheap stick lighter ignition, but the handle is good

and the smaller one is nice, but the handle looks backward :lol:

the ignition on the big one is actually from a propane lantern and it is pretty struddy. i know the handle looks backwards on the smaller one but i like the way it feels and it makes it easier to push the button with my thumb
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Unread postAuthor: hi » Sun May 20, 2007 7:15 pm

what did you use to go from 6'' to 3'' on the big one? it looks like you made a plug and vut out a big hole, but what is it made of?
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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Unread postAuthor: homedepotpro » Sun May 20, 2007 7:36 pm

its 1'' laminated mdf that is glue and bolted into place
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Unread postAuthor: experament-u2 » Mon May 21, 2007 12:40 am

they look great
i lol'd when i saw the ball pump tho
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