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First and only combustion.

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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First and only combustion.

Unread postAuthor: Fat Pants » Sat Apr 14, 2007 7:21 pm

This is my first ever spudgun, it got me into the hobby and i love it!

It's made from 40mm waste pipe (barrel, around 3 ft long) and a 40mm bottle trap highly modified to make it work (combustion chamber)

Vid:

http://www.youtube.com/watch?v=RNOdG1CNzJ4 (sorry for crap quality, along with the pics, it was dark outside)
Pikas:

Image

Image

Image

Image

Unfortunately it's out of action atm, i broke the ignitor and the screw on cap thing has 2 holes (from where i tried to use 2 screws for electrodes) in it so i don't think it'll work again without some money spent on it (could be spent on current pneumatic or new cannon)
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Unread postAuthor: experament-u2 » Sat Apr 14, 2007 10:11 pm

what did you use for the chamber thats the weirdest bit iv ever seen
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Unread postAuthor: frankrede » Sat Apr 14, 2007 10:26 pm

in the second pic is that a crack?
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Unread postAuthor: TwitchTheAussie » Sat Apr 14, 2007 11:51 pm

That thing doesnt look too safe man
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Unread postAuthor: Fat Pants » Sun Apr 15, 2007 5:21 am

Experament - It's a bottle trap, sometimes used over here (UK) undersinks to keep the crap from going into the pipes (builds up in the removable cap) I've had to seal one side up (bit with black disk) which was very tricky, but i managaed to pull it off with some bodging.

Frank - Na i have an obsession with markers and like to marker my possesions up, i drew all over my trials bike which cost me around 500 quid, i just like my things looking dodgy but performing well...

Twitch - Teheh, it probably isn't, but i guess i'm relatively safe as the combustion chamber is so small.
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Unread postAuthor: TwitchTheAussie » Sun Apr 15, 2007 5:28 am

Dont bet on it Ive still got a shrapnel mark somewhere on me :P
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Unread postAuthor: Insomniac » Sun Apr 15, 2007 5:30 am

Dude you seriously need to make that barrel shorter. It has the barrel of a regular gun and the chamber of a largeish mini. I would imagine you should cut about 2/3 of that barrel off.
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Unread postAuthor: Fat Pants » Sun Apr 15, 2007 6:17 am

Well, it doesn't work at the moment, but yeah, the chamber is small, which is why i'm happy shooting it without second thought (don't mean that in a wreckless way), but think longish narrel boosted the power, you can hear it's pretty powerful for it's size in the vid.
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