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 67 users online :: 3 registered, 0 hidden and 64 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Getting piston to work

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

Getting piston to work

Unread postAuthor: Shrimphead » Thu Mar 30, 2006 9:55 pm

I am working on a 3" piston cannon. I made foxx's 3" piston, just a little differently. The problem is that the piston won't ever seal against the barrel. I think that it's just because the piston won't slide easily. I think to fix this I need to deepen my or-ring grooves so it isn't so tight inside of the chamber. Any other ideas?
  • 0

User avatar
Shrimphead
Colonel
Colonel
 
Posts: 509
Joined: Thu Nov 17, 2005 7:42 pm
Reputation: 0

Unread postAuthor: saladtossser » Thu Mar 30, 2006 10:24 pm

instead of letting it seal on the barrrel, put a coupling on the barrel and let the piston seal up against a pre manufactured smooth surface
  • 0

"whoa... I thought pimpmann was black..."-pyromanic13
User avatar
saladtossser
Brigadier General
Brigadier General
 
Posts: 1234
Joined: Sat Mar 26, 2005 10:40 am
Location: Toronto
Reputation: 0

Unread postAuthor: Shrimphead » Thu Mar 30, 2006 10:37 pm

The edge of the barrel is pretty smooth. My grandpa cutted for me on his miter saw. Just a quick drop of the blade and it was cut straight and smooth. Also, I just realized that if I put a coupling on the end of the barrel, the equalization holes would be covered and the main chamber wouldn't fill. But thanks for the idea, any others?
  • 0

User avatar
Shrimphead
Colonel
Colonel
 
Posts: 509
Joined: Thu Nov 17, 2005 7:42 pm
Reputation: 0

Unread postAuthor: schmanman » Sat Apr 01, 2006 10:36 am

build this piston.much easier. and add the rubber coupler http://www.spudfiles.com/forums/viewtopic.php?t=1666&
  • 0

User avatar
schmanman
Major General
Major General
 
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Country: United States (us)
Reputation: 0

Unread postAuthor: Shrimphead » Sat Apr 01, 2006 11:52 am

I need a 3" piston not a 4", but thanks.
  • 0

User avatar
Shrimphead
Colonel
Colonel
 
Posts: 509
Joined: Thu Nov 17, 2005 7:42 pm
Reputation: 0

Unread postAuthor: schmanman » Sun Apr 02, 2006 1:29 pm

oh,I thought you ment a 3" diameter piston for a 4" valve,sorry
  • 0

User avatar
schmanman
Major General
Major General
 
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Country: United States (us)
Reputation: 0

Return to General Spud Cannon Related

Who is online

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

Reputation System ©'