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by Luke31
Wed Mar 31, 2021 2:47 pm
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Pressure rating for Coaxial cannons

I was contemplating about making a coaxial type air cannon design but I had a thought about the pressure rating. We know that certain pipes has been factory tested to withstand a certain amount of pressure inside of it. But what if that pressure is being applied outside of it? That's basically what'...
by Luke31
Tue May 04, 2021 11:59 am
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Re: Whats best valving for pneumatics

I have done test with sprinkler valves, duel sprinkler vales, triple sprinkler vales, piston vales, and ball valves. I have surprisingly found that a basic ball valve performs the same if not better than the triple sprinkler valve system. I built a 2'' piston valve but never really recorded anything...
by Luke31
Wed Jun 09, 2021 11:30 pm
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Paintball Artillery Gun

Hello people. I would like to share a project I've been working on for awhile. Its going to be an air cannon designed as an artillery gun for paintball games. Below are some 3D images I've done of the final vision (I do 3d modeling). Its going to shoot groups of water balloons at the opposing team. ...
by Luke31
Sat Jun 12, 2021 2:42 pm
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Re: Paintball Artillery Gun

Neat! We need a few more details on how it works, it looks like there's 3 sprinkler valves and the chamber can't be the whole length of that bottom pipe (or could it?). Only suggestion I have is to pneumatically pilot the three valves instead of electronically. You can hear the diaphragm "honking" ...
by Luke31
Thu Jun 17, 2021 12:16 am
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Re: Paintball Artillery Gun

Here's some pictures of the 2nd prototype. Its a 1 1/4 inch barrel that allows a 2ft shell to be loaded. I built two different breach loading mechanisms I thought could work. The first is a screw in breach that has the air enter from the bottom. The 2nd is a cam lock where the air enters directly fr...