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 85 users online :: 4 registered, 0 hidden and 81 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

Paintball Sniper..Coming Soon...

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

Paintball Sniper..Coming Soon...

Unread postAuthor: jeepkahn » Wed Mar 11, 2009 11:42 am

Just ordered 40 ft of Sch120 3/4" PVC.... Gonna build the kids a coupla paintball rifles, and may be interested in selling some of the leftover pipe...pm me if you need some...
  • 0


jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Unread postAuthor: jrrdw » Wed Mar 11, 2009 12:47 pm

You going to use sprinkler valve set ups for them?
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6538
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: jeepkahn » Wed Mar 11, 2009 1:28 pm

jrrdw wrote:You going to use sprinkler valve set ups for them?


Nah, prolly make them tee/piston valves, but I may get a wild hair and use 3/4" qevs, I want to make them 250+ psi capable so I'll prolly go piston valve for MOAR...

point of referance, sch120 3/4" is rated to 770psi working pressure, and if I use 1.5" sch40 for the chamber 250psi, should be ,ahem, safer...
  • 0


jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Unread postAuthor: jrrdw » Wed Mar 11, 2009 2:03 pm

Paint balls will handle that much pressure?
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6538
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: jeepkahn » Wed Mar 11, 2009 2:34 pm

I have no Idea how much paint balls will handle, but I also build a lot of ammo that can handle way MOAR than 250, so I just want it to be capable of the higher pressure...
  • 0


jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Unread postAuthor: rna_duelers » Wed Mar 11, 2009 8:44 pm

Paintballs surprisingly can handle alot of pressure but make sure you luberecate the barrel.Ohh and I wouldn't recomend using these for actualy paintball.You could end up with serious injuries such as broken ribs.
  • 0

Image
User avatar
rna_duelers
Major General
Major General
 
Posts: 1740
Joined: Mon Sep 26, 2005 7:07 am
Location: G-land Australia
Country: Australia (au)
Reputation: 1

Unread postAuthor: Dgealy » Wed Mar 11, 2009 9:05 pm

It is not the pressure that bursts the paintballs but the friction. So if you could sabot them with some paper, you could potentially use as much pressure as you want.
  • 0


Dgealy
Private First Class
Private First Class
 
Posts: 38
Joined: Fri Sep 05, 2008 5:56 pm
Reputation: 0

Sponsored

Sponsor
 


Re: Paintball Sniper..Coming Soon...

Unread postAuthor: Ragnarok » Wed Mar 11, 2009 9:53 pm

jeepkahn wrote:Gonna build the kids a coupla paintball rifles

Make sure you're very blunt about what they shoot at with them - a lot of people assume paintballs are harmless. They really, really aren't if they get up to speed.

@jrrdw: Certainly. I've used them beyond 300 psi with HEAL, in spite of my brother's insistence they'd turn inside out at those pressures and speeds.
  • 0

Does that thing kinda look like a big cat to you?
User avatar
Ragnarok
Chief of Staff
Chief of Staff
 
Posts: 5339
Joined: Tue Dec 19, 2006 8:23 am
Location: The UK
Reputation: 8

Unread postAuthor: jeepkahn » Thu Mar 12, 2009 8:22 am

Thanx for the input guys, I am going to be building in a safety feature to keep the kids from getting too crazy, I'm going to have a port on the chamber with a 80-100psi pop-off that I'll be able to remove and plug when I'm playing with it... :twisted:
  • 0


jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu Mar 12, 2009 8:27 am

jeepkahn wrote:I'm going to have a port on the chamber with a 80-100psi pop-off that I'll be able to remove and plug when I'm playing with it... :twisted:


Never underestimate kid's creativity when it comes to circumventing safety features...
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: jeepkahn » Thu Mar 12, 2009 9:33 am

the kids are also well educated in gun safety, we hunt and shoot on a regular basis, but yes, JSR isright, they can be very good at overriding safety features...
  • 0


jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Unread postAuthor: jrrdw » Thu Mar 12, 2009 10:28 am

Yea, just look at what they have all ready downloaded onto your computer.... :twisted:
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6538
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: jeepkahn » Thu Mar 12, 2009 1:03 pm

jrrdw wrote:Yea, just look at what they have all ready downloaded onto your computer.... :twisted:


???? Was that directed to me???
  • 0


jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Unread postAuthor: MrCrowley » Thu Mar 12, 2009 1:22 pm

and if I use 1.5" sch40 for the chamber 250psi,should be ,ahem, safer

Is that PVC? If so, I wouldn't take it even close to 200PSI, let alone 250.

Unless i've misunderstood you somewhere, then I apologize, but as a general rule, I wouldn't take any PVC over 175PSI unless it was 3/4" or 1".
  • 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: jeepkahn » Thu Mar 12, 2009 1:49 pm

1.5" pvc is rated to 330psi, and the chamber will prolly only be 6" long and after deducting 1" from either end where the fittings effectively double the thickness, there will only be 4" of exposed 1.5" sch40, so from a materiel strength/failure aspect, 250psi should be fine... when the boys are using them I'll have a pop-off installed to prevent overpressurization...

would I take a 4ft long piece of 1.5" sch40 to 250 psi??? prolly not, but on a small chamber, it should be fine...
  • 0


jeepkahn
Colonel
Colonel
 
Posts: 747
Joined: Fri Jan 09, 2009 1:11 pm
Location: Triad, NC, USA
Reputation: 0

Next

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'