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 57 users online :: 5 registered, 0 hidden and 52 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Whats the deal with O-rings and wood?

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: ALIHISGREAT » Thu Sep 25, 2008 1:29 am

congratulotions! (i would have still used the aluminium though :D )
  • 0

<a href="http://www.bungie.net/stats/halo3/default.aspx?player=ALI H IS GREAT"><img src="http://www.bungie.net/card/halo3/ALI H IS GREAT.ashx"></a>
Image
User avatar
ALIHISGREAT
Major General
Major General
 
Posts: 1779
Joined: Sat Aug 25, 2007 6:47 pm
Location: UK
Reputation: 0

Unread postAuthor: VH_man » Thu Sep 25, 2008 5:36 am

Heh you mentioned my wood piston!!!

if you can, put some o-rings on your wood piston. it works amazingly......

and i wish i had noticed this thread sooner..... because i had the same problems you did..... and fixed it with a custom milled washer (meaning dremeled) and the barrel flush sanding method.

Good luck destroying stuff at high pressure! its a "blast" (tee hee.... ill shut up now)
  • 0

User avatar
VH_man
Major General
Major General
 
Posts: 1827
Joined: Sat Dec 09, 2006 6:00 pm
Location: New Hampshire
Reputation: 1

Unread postAuthor: LikimysCrotchus5 » Thu Sep 25, 2008 4:25 pm

So if i were to put o O-rings on it, how deep would i have to make the groove for the O-ring?
  • 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: VH_man » Thu Sep 25, 2008 5:24 pm

i made mine so that the o-ring fit nicely... i really took no measurements

treat the wood like youd treat a hunk of PVC rod, at least thats what i did.

my "method" was to sand for a minute, then put the ring on and check to see if it fit. if not, sanding for another minute, untill it make a seal SO CLOSE that i didnt want to make it any smaller.
  • 0

User avatar
VH_man
Major General
Major General
 
Posts: 1827
Joined: Sat Dec 09, 2006 6:00 pm
Location: New Hampshire
Reputation: 1

Unread postAuthor: john bunsenburner » Mon Oct 27, 2008 4:46 pm

if you use ply woad it could lak due to the gaps between the woad. paper is made from woad fibres and it leaks...ply would is also made from woad fibres...
  • 0

User avatar
john bunsenburner
Major General
Major General
 
Posts: 1446
Joined: Sun Oct 19, 2008 5:13 am
Reputation: 0

Unread postAuthor: MrCrowley » Mon Oct 27, 2008 9:38 pm

john bunsenburner wrote:if you use ply woad it could lak due to the gaps between the woad. paper is made from woad fibres and it leaks...ply would is also made from woad fibres...

I've used ply-wood successfully before. I just sealed the wood with a varnish. You can also do the same with a wood wax which helps with lubrication also.

Regardless, it hardly matters if the wood does leak. As long as it keeps the sealing face in place, sealed against the barrel, it'll be fine.
  • 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 Discussion

Who is online

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

Reputation System ©'