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Best (or cheapest and easiest) way to regulate a 20oz CO2

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.
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Re: Best (or cheapest and easiest) way to regulate a 20oz CO

Unread postAuthor: Humancarpentry » Sun Jan 19, 2014 2:36 am

Here are a few pics of the first prototype. I have temorarily put a Shrader valve in the back of it to fill it up to 100 psi with my tire inflator air compressor. The PVC is all schedule 40 rated 220psi or above. I am just waiting on one final thread adapter to hook up my Palmer rock reg with a CO2 tank.

So far, filled to 100 psi, I can fire a potato chunk about 150 yards into the ocean. So, for my paintballing purposes, I will probably chrono it filled with 50 paintballs in a Sabot and then with a medium sized paint grenade as well. I am guessing I won't need much more than 80 psi, judging by the muzzle velocity I got on that potato.

If anyone is wondering, I am using the Orbit Jar-top 1" sprinkler valve trigger modified as according to this excellent guide here:

http://thehalls-in-bfe.com/GGDT/library ... 1_mod.html

Not sure who made that guide, but it is perfect and I wouldn't be surprised if they are a member here...
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Testing it out...

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Re: Best (or cheapest and easiest) way to regulate a 20oz CO

Unread postAuthor: jackssmirkingrevenge » Sun Jan 19, 2014 4:27 am

Humancarpentry wrote:Not sure who made that guide, but it is perfect and I wouldn't be surprised if they are a member here...


The man, the legend.

Basic but well put together :) I doubt a paint grenade would survive being shot out of the barrel unless you were using very low pressure.
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Re: Best (or cheapest and easiest) way to regulate a 20oz CO

Unread postAuthor: Humancarpentry » Sun Jan 19, 2014 6:39 pm

I'll likely encase the grenades in a very simple cardboard sabot. With my old combustion cannon, I just used a dixie cup, which worked well. Most paint grenades are pretty durable as they are made from latex tubing.
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