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 46 users online :: 5 registered, 0 hidden and 41 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

3" Piston in a 3" Tee?

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

3" Piston in a 3" Tee?

Unread postAuthor: Mrcrouse1 » Wed Feb 11, 2009 4:57 pm

Ok, so I have changed my idea again, because certain parts just dont fit together. I am thinking of cutting some polyethelyne rod up and putting a check valve in it, and bolting 2 segments together as a pison. Would this work? Would it withstand 100psi? http://www.mcmaster.com/#8701k55/=kt1yz
  • 0

Last edited by Mrcrouse1 on Thu Feb 12, 2009 10:20 pm, edited 2 times in total.

Mrcrouse1
Private
Private
 
Posts: 13
Joined: Sat Feb 07, 2009 7:44 pm
Reputation: 0

Unread postAuthor: jmeyer1022 » Wed Feb 11, 2009 5:00 pm

Those who know how to build this won't tell you because Gort makes money selling them. Your best bet is to build your own 2" or 3" piston valve, if your looking for a mauler your going to have to buy one sorry.
  • 0


jmeyer1022
2nd Lieutenant
2nd Lieutenant
 
Posts: 200
Joined: Sun Nov 09, 2008 4:50 pm
Reputation: 0

Unread postAuthor: psycix » Wed Feb 11, 2009 5:26 pm

Isnt a mauler nothing more then a well-made chamber-sealing piston valve with o-rings and a check valve in the piston?
  • 0

Till the day I'm dieing, I'll keep them spuddies flying, 'cause I can!

Spudfiles steam group, join!
User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Unread postAuthor: ckman » Wed Feb 11, 2009 5:33 pm

Yeah thats all it is it just has a fancy name.
  • 0

User avatar
ckman
Sergeant Major
Sergeant Major
 
Posts: 181
Joined: Sun Aug 03, 2008 11:00 pm
Reputation: 0

Unread postAuthor: jonnyboy » Wed Feb 11, 2009 6:06 pm

psycix wrote:Isnt a mauler nothing more then a well-made chamber-sealing piston valve with o-rings and a check valve in the piston?


I thought the mauler was a copy of what joel made which had a diaphragm valve in there as well.
  • 0

mobile chernobyl wrote:I can shoot a Canuter Valve off my '82 Chevy Ram F150 AT LEAST 3/4 Mile with 'ma cannon made of soup cans duct taped together, then I just squirt some bacardi 151 in the chamber and hold up my cigarrete lighta and WHOOSH! That thing flies at least 3/4 mile
User avatar
jonnyboy
Colonel
Colonel
 
Posts: 591
Joined: Mon May 26, 2008 1:20 pm
Location: Williamston MI USA
Reputation: 0

Unread postAuthor: daberno123 » Wed Feb 11, 2009 6:33 pm

The wiki disagrees, saying its a barrel sealer.
  • 0

User avatar
daberno123
Colonel
Colonel
 
Posts: 594
Joined: Mon Nov 19, 2007 5:56 pm
Location: Ohio
Reputation: 0

Unread postAuthor: MrCrowley » Wed Feb 11, 2009 9:48 pm

If you want to copy the mauler, you'll need a lathe.

If you want to build a piston valve, you can use what you want. The mauler is more powerful because of its tight tolerances, built-in check valve, o-rings etc.
  • 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

Sponsored

Sponsor
 


Unread postAuthor: Mrcrouse1 » Wed Feb 11, 2009 9:54 pm

I can probably get acess to the lathe at my school, the design I hand dress has a check valve and O-rings. It consists of 2 2" couplers and 2"-1/2" bushings inside them for the valve and bolts for the neoprene washers. My question is, will a 2" PVC coupler fit well inside a 2.5" tee?
  • 0


Mrcrouse1
Private
Private
 
Posts: 13
Joined: Sat Feb 07, 2009 7:44 pm
Reputation: 0

Unread postAuthor: Mrcrouse1 » Thu Feb 12, 2009 5:08 pm

Also, does anyone know a good place to get 2.5" PVC and fittings?
  • 0


Mrcrouse1
Private
Private
 
Posts: 13
Joined: Sat Feb 07, 2009 7:44 pm
Reputation: 0

Unread postAuthor: jmeyer1022 » Thu Feb 12, 2009 6:04 pm

Please don't double post next time use edit.
  • 0


jmeyer1022
2nd Lieutenant
2nd Lieutenant
 
Posts: 200
Joined: Sun Nov 09, 2008 4:50 pm
Reputation: 0

Unread postAuthor: frankrede » Thu Feb 12, 2009 6:47 pm

Mrcrouse1 wrote:Also, does anyone know a good place to get 2.5" PVC and fittings?
Irrigation supply stores. Look in your phonebook.

@Jmeyer, you really don't need to people to not double post, its really redundant and only adds another useless post.
  • 0

Current project: Afghanistan deployment
User avatar
frankrede
Lieutenant General
Lieutenant General
 
Posts: 3220
Joined: Thu Jul 20, 2006 9:47 pm
Reputation: 0

Unread postAuthor: ralphd » Thu Feb 12, 2009 8:14 pm

I get my 2 1/2" fittings through Graingers. Tee's are about $10. Before you start look here;

http://www.geocities.com/advancedinvent ... ansspv.htm

I wish I found this before I started my piston. I may make one just to see if iI can do it. Good luck.
  • 0


ralphd
Sergeant Major
Sergeant Major
 
Posts: 192
Joined: Mon Dec 17, 2007 8:07 pm
Location: Niles Ohio
Reputation: 0

Unread postAuthor: Mrcrouse1 » Thu Feb 12, 2009 9:36 pm

So I checked out the sizes and such for fittings, and my original idea will not work. Would a 3" diameter polyethylene rod be able to withstand 100psi? http://www.mcmaster.com/#8701k55/=kt1yz
I am thinking about putting this inside a 3" coupler, I'll machine in o-rings and a check valve and such.
  • 0


Mrcrouse1
Private
Private
 
Posts: 13
Joined: Sat Feb 07, 2009 7:44 pm
Reputation: 0

Unread postAuthor: Gippeto » Thu Feb 12, 2009 10:54 pm

Should work. Why not skip the check valve and use a floating o-ring?

Have a look at the piston for my "bb" gun.

http://www.spudfiles.com/forums/x-1-1-m ... 16607.html
  • 0

"It could be that the purpose of your life is to serve as a warning to others" – unknown

Liberalism is a mental disorder, reality is it's cure.
User avatar
Gippeto
Donating Member
Donating Member
 
Posts: 2393
Joined: Sat Jan 19, 2008 10:14 am
Location: The Great White North...Canada eh!
Reputation: 11

Unread postAuthor: jimschouster » Fri Feb 13, 2009 12:45 pm

This is what I am trying its 3" x 4" 1/8" Neoprene in a 3" tee

http://i569.photobucket.com/albums/ss13 ... 0_1252.jpg
  • 0

User avatar
jimschouster
Private
Private
 
Posts: 23
Joined: Wed Feb 11, 2009 12:00 pm
Reputation: 0

Next

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'