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 48 users online :: 4 registered, 0 hidden and 44 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

making a mini pneumatic

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
Sponsored 
  • Author
    Message

Unread postAuthor: jackssmirkingrevenge » Fri Sep 14, 2007 8:59 am

you can afford to have a smaller chamber, but if you keep those dimensions you should have a reasonably powerful cannon :)
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: spud yeti » Fri Sep 14, 2007 10:23 am

does a paintball fit into 15mm pipe?! I dont think it does, but m&m's would work then i guess. Otherwise the progress sounds pretty good. How did you modify the ball valve though?
  • 0

really good quote/phrase here
User avatar
spud yeti
Brigadier General
Brigadier General
 
Posts: 1030
Joined: Tue May 08, 2007 1:41 pm
Location: Cape town south africa
Reputation: 0

Unread postAuthor: spanerman » Fri Sep 14, 2007 10:45 am

it doesnt but they fit in 22mm with wadding
  • 0

Image

spanerman
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 438
Joined: Sun Sep 17, 2006 2:54 pm
Reputation: 0

Unread postAuthor: dongfang » Fri Sep 14, 2007 3:40 pm

Hi,

I think most people here would say the chamber is too large for the barrel. It's a 2.7:1 ratio.

Can you fix a long, strong spring to open the valve quickly? Or a torsion spring in some way? Then it might get quite good.

Regards
Soren
  • 0

User avatar
dongfang
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 448
Joined: Sun Aug 27, 2006 8:02 am
Location: Switzerland
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Fri Sep 14, 2007 11:54 pm

dongfang wrote:Can you fix a long, strong spring to open the valve quickly? Or a torsion spring in some way? Then it might get quite good.


Modding a sprinkler valve would be easier and mroe effective.
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Previous

Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'