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 64 users online :: 4 registered, 0 hidden and 60 guests


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

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

Portable Soda Bottle Bazooka UPDATE: NEED HELP

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: GinsuGuy585 » Wed May 23, 2007 9:16 pm

As I explained in the edited top post, the air is returning past the piston and coming out of the qev. I'm trying to seal it with duct tape but not much luck with it.
  • 0


GinsuGuy585
Private First Class
Private First Class
 
Posts: 28
Joined: Wed May 16, 2007 11:29 pm
Reputation: 0

Unread postAuthor: ShowNoMercy » Wed May 23, 2007 9:19 pm

Maybe your piston is too heavy and or getting stuck in the pipe and air has an easier flow path around it?
  • 0

Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
User avatar
ShowNoMercy
Brigadier General
Brigadier General
 
Posts: 1094
Joined: Mon Mar 19, 2007 8:08 am
Location: Jersey Bitches!
Reputation: 0

Unread postAuthor: GinsuGuy585 » Wed May 23, 2007 9:32 pm

The piston is light considering it is 3" in diameter, and yes obviously air is leaking around the piston, but what can I use to seal it? I'm going to try some duct tape once my roommate gets home (unscrewing it is a 2 person job.)

Anyone know where I can get 3" O-rings?
  • 0


GinsuGuy585
Private First Class
Private First Class
 
Posts: 28
Joined: Wed May 16, 2007 11:29 pm
Reputation: 0

Unread postAuthor: ShowNoMercy » Wed May 23, 2007 9:33 pm

Just get some rubber sheets and cut it out.
  • 0

Jesus saves, no need to pray
The gates of pearl have turned to gold
It seems you've lost your way
User avatar
ShowNoMercy
Brigadier General
Brigadier General
 
Posts: 1094
Joined: Mon Mar 19, 2007 8:08 am
Location: Jersey Bitches!
Reputation: 0

Unread postAuthor: GinsuGuy585 » Wed May 23, 2007 9:40 pm

I have a sheet of neoprine, but it will be extremely tough to get it perfectly round.

If someone knows where i can get large O-Rings, PLEASE tell me!
  • 0


GinsuGuy585
Private First Class
Private First Class
 
Posts: 28
Joined: Wed May 16, 2007 11:29 pm
Reputation: 0

Unread postAuthor: Killjoy » Wed May 23, 2007 10:06 pm

I think mcmaster has 3" o-rings
  • 0

Stanford Class of 2012

"In the end our society will be defined not only by what we create, but what we refuse to destroy"- John Sawhill

Killjoy
Brigadier General
Brigadier General
 
Posts: 1053
Joined: Sun Nov 12, 2006 12:51 am
Location: New Mexico
Reputation: 0

Unread postAuthor: rednecktatertosser » Wed May 23, 2007 10:07 pm

yes mcmaster has 3" o-rings. i was looking at them today.
  • 0

User avatar
rednecktatertosser
Colonel
Colonel
 
Posts: 590
Joined: Tue May 22, 2007 7:52 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: GinsuGuy585 » Wed May 23, 2007 10:26 pm

I'll get some calipers and figure out what size I need. Thanks Killjoy and redneck, I didn't know they carried O-rings but what don't they have? :lol:
  • 0


GinsuGuy585
Private First Class
Private First Class
 
Posts: 28
Joined: Wed May 16, 2007 11:29 pm
Reputation: 0

Previous

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'