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Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: beebs111 » Fri Oct 21, 2005 11:18 am

joemama 1st, dont double post edit ur posts,2nd u need to give people sum time and not ask multiple times cuz that pisses everyone off
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about PB

Unread postAuthor: Bsmooth » Mon Nov 07, 2005 7:06 pm

Cole wrote:How does a paintball gun regulate the psi, or does it regulate the pressure?



Paintball guns simply use a metered VOLUME of air. The tank is the only thing that supplies/regulates the input pressure, but there are secondary regulators that can further regulate the pressure.
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Unread postAuthor: taz22 » Mon Mar 06, 2006 1:41 pm

maybe it shoots a greater distance becaus its using 12gr co2? so it uses more air than a normal pneumatic
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Unread postAuthor: Brian the brain » Mon Mar 06, 2006 3:03 pm

I got 3 regulators off Ebay.One regulates down to 10 bar, the other two to 4.
Payed only 5,50 Euro for them.
Waiting for them to be delivered this week.
There must be tons of regulators available through Ebay for Americans though...
In Europe it's a little harder to find, but not impossible.
I'll sell one of the 4bar regs to anyone if I can help 'em out (here in Holland)
If you're not from my country
it's up to you if you'll pay for shipping.
take a look at this:
<a href="http://cgi.ebay.nl/9NR-NEW-IMI-CORNELIUS-PRIMARY-CO2-REGULATOR-COKE-PEPSI_W0QQitemZ7596892577QQcategoryZ57076QQrdZ1QQcmdZViewItem">Long Link</a>

or
<a href="http://cgi.ebay.nl/CO2-regulator-valve-threaded-shrader-presta-cartridge_W0QQitemZ7192848467QQcategoryZ22691QQrdZ1QQcmdZViewItem">Another Long Link</a>
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: Holland_Charley » Mon May 08, 2006 10:37 am

whats that silver cilinder on the 5th picture? A co2 shelll?!!!!!!
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Unread postAuthor: spudshot » Mon May 08, 2006 2:45 pm

thats a co2 adapter so he can use 12 gram CO2 powerlets in it
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Unread postAuthor: Flinchy » Tue May 16, 2006 9:37 am

spudshot is right, these pneumatic cannons are not toys at all, if you want to use one of these for paintball you would have to use very low PSI's and one of those speed checker things (forgot what their called). that way you could see exactly how much fps these things are getting, and you could compare it to a paintball gun. using them as a mortar would be the best alternative.
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Unread postAuthor: noname » Mon Jun 12, 2006 5:30 pm

If the guys at the paintball place would let me (they won't :cry: ) I would get one of my guns with a 2" barrel and just pour like 40 balls in and shoot it straight up after I get out my umbrella. :D
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Unread postAuthor: dnick454 » Wed Jun 14, 2006 5:09 pm

Flinchy wrote:spudshot is right, these pneumatic cannons are not toys at all, if you want to use one of these for paintball you would have to use very low PSI's and one of those speed checker things (forgot what their called). that way you could see exactly how much fps these things are getting, and you could compare it to a paintball gun. using them as a mortar would be the best alternative.


Chronograph or chrono is what we call it at the fields. Ok, heres a quick explaination of pb guns :)

Ok, most lower end pb guns use Co2. They are not regulated as it comes out at about 800-900 PSI until it pretty much runs out. Co2 can be regulated but its hard because sometime liquid comes out alot. Which inturn can jack up your reg. You can buy anti-siphon tubes for co2 bottles which eliminate MOST of it but you cant be sure.

Second, most higher end guns use nitrogen. It's really compressed air I dont know why it has been called nitro but thats besides the point. It's never in liquid form so to get as much, it goes MUCH higher pressure. Nitro bottles can be from 3000 PSI all the way up to 5000. It doesnt come out of the bottle at that pressure though. It comes out at 800 PSI due to a first stage reg on the bottle. Then most high end guns have an HPR and an LPR which is a high pres reg and a low pres reg. For instance, on my gun, the HPR is set to 280 PSI and the LPR is set to about 80 PSI which is the internal operating pressure. Anyways, there are some PB regs out there that you can pick up that can reg lower pressures like in the low 100's and sometimes lower and you can get gauges on them. They have nice fat deep threads too so you could thread them into a nice hunk of PVC. All you need is some hoses, an ASA for the tank and then a tank. Nitro tanks can be from 50 bucks for a 45 CI 3000 psi steel tank to 300 for a 88 CI 5000 PSI carbon fiber tank with adjustable output. So it all up to you and how much you wanna spend.

Hope this helped a bit. :)
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Unread postAuthor: Constructor » Mon Sep 18, 2006 12:57 pm

Nice
350 yards..........

Im constructing my own little potato gun about 2 feet long shoots about
20-35 feet away
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