first cannon

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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is it a good first gun?

yes
4
100%
maybe
0
No votes
no
0
No votes
 
Total votes: 4
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dauphinoise potato
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Joined: Sun Jul 15, 2007 8:36 am

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
Attachments
nail dart through ply
nail dart through ply
Picture 104.jpg (36.32 KiB) Viewed 2724 times
my target
my target
Picture 103.jpg (25.46 KiB) Viewed 2724 times
the back of the ply
the back of the ply
Picture 102.jpg (33.28 KiB) Viewed 2724 times
another bit of ply 36 feet
another bit of ply 36 feet
Picture 101.jpg (22.75 KiB) Viewed 2724 times
the back of it
the back of it
Picture 100.jpg (30.98 KiB) Viewed 2724 times
sheet of 6 ply at 36 feet
sheet of 6 ply at 36 feet
Picture 099.jpg (23.8 KiB) Viewed 2724 times
damage to the bin
damage to the bin
Picture 098.jpg (33.68 KiB) Viewed 2724 times
the ammo
the ammo
the filling corner
the filling corner
another view, the nail went about an inch into the wood and i got dad to yank it out whith some monkey wrenches
another view, the nail went about an inch into the wood and i got dad to yank it out whith some monkey wrenches
Nail dart through metal bin
Nail dart through metal bin
the cannon and the pump
the cannon and the pump
It's all a bunch of tree huggin' hippie crap!
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spud yeti
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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?
really good quote/phrase here
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spanerman
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Posts: 437
Joined: Sun Sep 17, 2006 2:54 pm

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!
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dauphinoise potato
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Joined: Sun Jul 15, 2007 8:36 am

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]
It's all a bunch of tree huggin' hippie crap!
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spanerman
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Posts: 437
Joined: Sun Sep 17, 2006 2:54 pm

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
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dauphinoise potato
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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.
It's all a bunch of tree huggin' hippie crap!
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spud yeti
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So how much did it cost you in the end?
really good quote/phrase here
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dauphinoise potato
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I think around 30 quid which is OK. I'm going to make a combustion next :wink:
It's all a bunch of tree huggin' hippie crap!
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al-xg
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Posts: 643
Joined: Fri Jan 19, 2007 12:29 pm

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 :wink:

Nice clean first pneumatic spudgun there.
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