SpudFiles

Hey this is my first cannon it's a copper pneumatic one using a ball valve. It's all 15mm. I've taken it up to 160psi with my joe blow sports pump. To put the schrader valve in I stripped the rubber off in a drill, unscrewed the poppet sooldered it in and put teh poppet back. I t was my first go at soldering so don't be to harsh. The most damage I've ever done was a nut and bolt through 6 ply and 1/2innch mdf.


Stats

Chamber: 7 feet of 15mm

Barrel: 5 feet of 15mm

Valve: ball valve 15mm

Filling valve: tyre valve


Here's some pic's

WOW! :wav: :occasion5: :headbang: Thats so awesome I forgot to jump up and down... Yeah, its OK. Why the massive amounts of copper at the bottom though?

very nice, but you could make the chamber with 22mm pipe for quite a bit more volume:) and iff possibale you could spring load the ball valve to speed up opening times!

spud yeti wrote:WOW! :wav: :occasion5: :headbang: Thats so awesome I forgot to jump up and down... Yeah, its OK. Why the massive amounts of copper at the bottom though?

I was originally going to buy a schrader that fits into a 22mmm endcap.


And spanerman, I got the stuff at homebase and they only sold 22mm copper in 30m lengths for £113...I probally will springload the valve[/quote]

are you in the uk? iff so check out http://www.uksgc.co.uk for sourcing uk parts...BES sells copper in small lenghts up to 54mm....http://www.bes.co.uk

spanerman wrote:are you in the uk? iff so check out http://www.uksgc.co.uk for sourcing uk parts...BES sells copper in small lenghts up to 54mm....http://www.bes.co.uk

Yeah i just joined, pete invited me.

So how much did it cost you in the end?

I think around 30 quid which is OK. I'm going to make a combustion next

I tried spring loading my first copper pneumatic, and it worked great and looked pretty cool too. But then i bent the ballvalve handle, and then got a QEV

Nice clean first pneumatic spudgun there.