Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 72 users online :: 5 registered, 0 hidden and 67 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

5ft copper rifel

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 
  • Author
    Message

Unread postAuthor: maggotman » Thu Jan 22, 2009 2:54 pm

Image
  • 0


maggotman
1st Lieutenant
1st Lieutenant
 
Posts: 262
Joined: Mon Dec 15, 2008 7:39 am
Reputation: 0

Unread postAuthor: Biopyro » Thu Jan 22, 2009 3:45 pm

Looks like there are reducers to all of the ports of the tee? If so that will hit your power.
Otherwise another great copper cannon! How ergonomic is it? I used the ball valves you're using and they were cack! leaked like a sieve!

Jonnyboy - the nicest thing for copper IMO, is polishing it then lacquering. Keeps that beautiful shine.
  • 0

Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety. -Benjamin Franklin
User avatar
Biopyro
Colonel
Colonel
 
Posts: 656
Joined: Fri Aug 04, 2006 5:32 am
Location: UK
Reputation: 0

Unread postAuthor: maggotman » Thu Jan 22, 2009 4:07 pm

the chamber is 35mm then a Yorkshire 28 fitting was hammered into the 35mm pipe and lots of solder the piston sealing face is a piece of 22mm pipe and is the smallest part

it is quite nice to hold you get a nice recoil as well im thinking of fitting a 2kg 200bar extinguisher to it to store hpa and since its aluminum it will polish up nice aswell im also thinking about putting a long marble barrel on it
  • 0


maggotman
1st Lieutenant
1st Lieutenant
 
Posts: 262
Joined: Mon Dec 15, 2008 7:39 am
Reputation: 0

Unread postAuthor: MrCrowley » Thu Jan 22, 2009 5:04 pm

it is quite nice to hold you get a nice recoil as well im thinking of fitting a 2kg 200bar extinguisher to it to store hpa and since its aluminum it will polish up nice aswell im also thinking about putting a long marble barrel on it

You sure it's rated to 200 bar? It's just that usually the aluminium fire extinguishers here are for powder and only rated to a few hundred PSI. Yours could be different though.
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Unread postAuthor: maggotman » Thu Jan 22, 2009 5:08 pm

well not rated but stamped and dated 200bar test pressure and ime sure it has a good safety factor on top of that and i would only be using 100 bar if i can get another frige pump to charge it
  • 0


maggotman
1st Lieutenant
1st Lieutenant
 
Posts: 262
Joined: Mon Dec 15, 2008 7:39 am
Reputation: 0

Unread postAuthor: MrCrowley » Thu Jan 22, 2009 5:23 pm

Oh ok, yeah if it says 200bar, it can take 100bar (assuming itt's not damaged).
  • 0

User avatar
MrCrowley
Moderator
Moderator
 
Posts: 10207
Joined: Fri Jun 23, 2006 10:42 pm
Location: Auckland, New Zealand
Country: New Zealand (nz)
Reputation: 4

Previous

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot]

Reputation System ©'