First and only combustion.

[Fat Pants]

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 shit quality, along with the pics, it was dark outside)
Pikas:









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)

[experament-u2]

what did you use for the chamber thats the weirdest bit iv ever seen

[frankrede]

in the second pic is that a crack?

[TwitchTheAussie]

That thing doesnt look too safe man

[Fat Pants]

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.

[TwitchTheAussie]

Dont bet on it Ive still got a shrapnel mark somewhere on me

[Insomniac]

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.

[Fat Pants]

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.