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 76 users online :: 4 registered, 0 hidden and 72 guests


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

Registered users: Bing [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

Piston neoprene question

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

Piston neoprene question

Unread postAuthor: pat123 » Sat Nov 17, 2007 3:34 pm

I have tried to make a piston before but it didn't really work out. I am about to get the stuff to try again. I have heard that neoprene is the best stuff to use as a sealing face. what part of lowes or homedepot would it be in? any other tips are appreciated.

thanks
Pat
  • 0

User avatar
pat123
Colonel
Colonel
 
Posts: 514
Joined: Sat Dec 23, 2006 10:08 pm
Location: S.C.
Reputation: 0

Unread postAuthor: hyldgaard » Sat Nov 17, 2007 3:52 pm

innertube from a biketire is also a very nice sealing face, and cheaper too i believe :) -it's always nice to have some alternatives
  • 0

User avatar
hyldgaard
Sergeant Major
Sergeant Major
 
Posts: 187
Joined: Tue Sep 25, 2007 4:21 am
Location: Denmark
Reputation: 0

Unread postAuthor: pat123 » Sat Nov 17, 2007 3:54 pm

thanks i might try that. it probably is a lot cheaper
  • 0

User avatar
pat123
Colonel
Colonel
 
Posts: 514
Joined: Sat Dec 23, 2006 10:08 pm
Location: S.C.
Reputation: 0

Unread postAuthor: hyldgaard » Sat Nov 17, 2007 4:04 pm

yea that too :wink:
  • 0

User avatar
hyldgaard
Sergeant Major
Sergeant Major
 
Posts: 187
Joined: Tue Sep 25, 2007 4:21 am
Location: Denmark
Reputation: 0

Unread postAuthor: BigJon » Sat Nov 17, 2007 4:10 pm

In homedepot you can get some neoprene washers next to the regular washers and nuts and bolts. They are pretty cheap also

hope that helps
  • 0

User avatar
BigJon
Staff Sergeant
Staff Sergeant
 
Posts: 120
Joined: Wed May 30, 2007 12:21 pm
Reputation: 0

Unread postAuthor: LikimysCrotchus5 » Sat Nov 17, 2007 4:15 pm

As mentioned before, inner tube is a good sealant and i can tell you that because my piston cannon uses inner tube. Make sure to bolt it to you piston. This is my piston.

Image
Sealing face, 1 layer of inner tube

Image
Side view
Made of hot glue

http://www.spudfiles.com/forums/my-firs ... 11432.html

here is the link to my cannon
  • 0

4SPC, My 4" piston 3" porting cannon
Memo:
Fix up copper cannon
Fix up 4SPC
Start Stirrup pump
Start Toolies piston bazooka
User avatar
LikimysCrotchus5
Brigadier General
Brigadier General
 
Posts: 1100
Joined: Tue Sep 04, 2007 10:16 pm
Reputation: 0

Unread postAuthor: Maniac » Sat Nov 17, 2007 4:21 pm

on mc master they sell neoprene ronds and sheets you could use the rod as the piston body and sheet as sealing face
  • 0

Coodude26 wrote:
People who laugh really hard at stuff that pisses you off/you getting hurt, who then say "I'm sorry, I can't stop" but you know they easily could.

Mr.C: That's not as easy as you think. It's like me kicking you in the balls and telling you to stop crying.
User avatar
Maniac
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 496
Joined: Tue Oct 23, 2007 5:55 pm
Location: Right behind you
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: pat123 » Sat Nov 17, 2007 4:23 pm

thanks a lot
when i go to homedpot i'll loook for the neoprene washers and if I can't find any i am going to get a inner tube.
I found something else that might work the inside of a kickball. i might try it.
  • 0

User avatar
pat123
Colonel
Colonel
 
Posts: 514
Joined: Sat Dec 23, 2006 10:08 pm
Location: S.C.
Reputation: 0

Unread postAuthor: PVC Arsenal 17 » Sat Nov 17, 2007 5:27 pm

Try to get/make a gasket punch if you use inner tube. Copper couplings sharpened work great. Put the inner tube over a block of wood and pound the coupling into it with a mallet.

Those jagged scissor-cut edges make me twitch.
  • 0


PVC Arsenal 17
Major General
Major General
 
Posts: 1762
Joined: Mon Mar 27, 2006 4:18 pm
Location: United States
Reputation: 1

Unread postAuthor: nivekatoz » Sat Nov 17, 2007 8:42 pm

You can buy rubber roof membrain in big sheets and its cheap by the foot...Its also used in pond making as the liner....I think its a synthic rubber so it might last longer.....I use it my self in ASCO solenoid valves ,and it works good and hold at least 120 psi..It might hold more???
  • 0


nivekatoz
2nd Lieutenant
2nd Lieutenant
 
Posts: 237
Joined: Sat Nov 25, 2006 7:05 pm
Reputation: 0

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'