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 42 users online :: 6 registered, 0 hidden and 36 guests


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

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Google Adsense [Bot], jimmy101, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

how do you do this

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

how do you do this

Unread postAuthor: fraudready » Sun Feb 04, 2007 1:55 am

first off this isnt my gun, im gonna try to
replicate this gun but i cant seem to figure
out how to attach the pressure gauge and
the schrader valve to the 2" coupling

does anyone know how to do this?
  • 0

Attachments
marble2_186.jpg
marble2_186.jpg (16.32 KiB) Viewed 559 times

fraudready
Private
Private
 
Posts: 5
Joined: Sat Feb 03, 2007 8:55 pm
Reputation: 0

Unread postAuthor: frankrede » Sun Feb 04, 2007 2:05 am

It has a threaded connection on the back of the valve that is threaded into the plastic.
  • 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: fraudready » Sun Feb 04, 2007 2:08 am

sorry im new at this
but ill try to understand

i have to drill a hole in the coupling
and attach the dread connector
right?
or wrong?

sorry
i forgot to mention im new
  • 0


fraudready
Private
Private
 
Posts: 5
Joined: Sat Feb 03, 2007 8:55 pm
Reputation: 0

Unread postAuthor: MrCrowley » Sun Feb 04, 2007 2:31 am

Thread*


Yes. Say its a 1/8" brass nipple on the gauge, you would drill about a 7/64" hole?(I use metric,so whats the next size down from 1/8"?)

Anyway the point is you drill a smaller hole then the thread is. Then you get a 1/8" tap and thread the hole. You then wrap teflon around the threads of the gauge and screw it carefully(and straight) into the hole.

This is really simple stuff. Make sure you do alot of searching before making a pneumatic and asking basic questions. We don't want you to get hurt.
  • 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

Unread postAuthor: fraudready » Sun Feb 04, 2007 2:41 am

yea now i get you
this is my first pneumatic

i pretty much have all the facts down
ive done a bunch of research
i cant seem to find an answer to some stuff

like whats the schrader valve for?

sorry if the question sounds dumb
i just have to know before i actually make it
or else i cant make it

EDIT:never mind my basic knowledge of
biking kicked in and i know what its for now

haha
  • 0

Last edited by fraudready on Sun Feb 04, 2007 2:56 am, edited 1 time in total.

fraudready
Private
Private
 
Posts: 5
Joined: Sat Feb 03, 2007 8:55 pm
Reputation: 0

Unread postAuthor: SpudBlaster15 » Sun Feb 04, 2007 2:53 am

MrCrowley wrote:Yes. Say its a 1/8" brass nipple on the gauge, you would drill about a 7/64" hole?(I use metric,so whats the next size down from 1/8"?).


Crowley, Crowley, Crowley...

You do know that pipe thread sizes are completely independant of standard measurments, right?

Chances are, the gauge has either a 1/8" NPT or 1/4" NPT thread. The former would require a "Q" drill bit, and the later a 7/16" drill bit.

Fraudready, a schrader valve is used as means of pressurizing the chamber with a compressed gas, usually air.
  • 0

People should not be afraid of their governments. Governments should be afraid of their people.
User avatar
SpudBlaster15
Major General
Major General
 
Posts: 2385
Joined: Wed Oct 18, 2006 11:12 pm
Location: Canada
Country: Poland (pl)
Reputation: 3

Unread postAuthor: MrCrowley » Sun Feb 04, 2007 6:15 am

SpudBlaster15 wrote:
MrCrowley wrote:Yes. Say its a 1/8" brass nipple on the gauge, you would drill about a 7/64" hole?(I use metric,so whats the next size down from 1/8"?).


Crowley, Crowley, Crowley...

You do know that pipe thread sizes are completely independant of standard measurments, right?

Chances are, the gauge has either a 1/8" NPT or 1/4" NPT thread. The former would require a "Q" drill bit, and the later a 7/16" drill bit.

Fraudready, a schrader valve is used as means of pressurizing the chamber with a compressed gas, usually air.


Yeah, Ofcourse I do, Thats why I asked what the next size down from 1/8" is. I know the metric I.D's and O.D's of brass fittings up to 25mm but putting it into imperial is difficult as.....

1/4" = 6mm
1/2" = 12mm
3/4" = 18mm
1" = 24mm


But our alternatives for those sizes are:

8mm(Equiv of 1/4")
15mm(Equiv of 1/2")
20mm(Equiv of 3/4")
25mm(Equiv of 1")

See how they are 2mm out on most of them. I wasn't sure if your threaded nipples ect are the same because of that weird conversion.
  • 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
 


Return to Pneumatic Cannon Discussion

Who is online

Registered users: Bing [Bot], Exabot [Bot], Google [Bot], Google Adsense [Bot], jimmy101, Yahoo [Bot]

Reputation System ©'