This cannon was designed in order to make it more paintball friendly. The use of a 12 gram quick change adapter enables it to be reloaded relatively quickly on the paintball field. It basically uses the same principle as the compressed air cannon, but the air chamber is replaced with the 12 gram quick changer and a 6" expansion chamber.
As with all paint cannon's, all PVC parts must be glued together using pvc glue. All threaded pipe connectors must use Teflon plumbers tape(and lots of it) The hardest part in the construction is making an airtight pressure chamber. If the chamber is not air tight, then the pressure will slowly leak out and leave you with a "dud" when you need it most - on the paintball field! The best procedure is to put it all together and pressurize it, then check for leaks with a soap and water solution(a spray bottle works best).
Drill a small hole in your pvc pressure chamber to make an area for your small 12 gram adapter.( pressure chamber is 2-4" thick pvc pipe about 6-12" long capped on one end) Glue it in with pvc glue and then use super glue to keep it in under high pressure. You could use a remote if you worked on timing the air. You don’t need purple primer as it isn’t using water.
Using a Steneloid Valve ( I think that is what they are called they are for sprinklers) Attach it between the barrel and your pressure chamber with pvc glue. It is basically a big valve to control air flow.
Attach an adapter to the valve that changes to your desired barrel size 3/4" or more as a paintball is .68". The barrel should be smaller than the presser chamber to propel the ball. (in diameter)
To use close the valve and load your desired amount of paint down the barrel. ( you might try sticking a paper towel in the end so they don’t fall out. put on the CO2. point at target. flip the switch and let er rip’.
TIP:: to make paintballs go faster add some type of filler inside the chamber. This will cause less area for the CO2 to expand meaning more pressure when they exit.
Paintball Mortor
Simply Build the above cannon and put a bipod on it so it is tilted up into the air.
Grenade launcher
The paint cannon is a 12 gram type with an actual stained wood stock, trigger loop, sights, fore grip assembly and sling. This cannon is easily the best looking one I have to offer!
Design and Construction:
The grenade launcher is basically the same as a 12 gram cannon, with the addition of the wood stock and PVC foregrip. The barrel is wider to accommodate grenades from paint to smoke and even a dummy.
The wood stock is cut from a block of 2" by 4" wood. The wood is cut and shaved/sanded to provide a smooth surface. It was then stained with several coats of wood stain to get the wood stock effect. The stock is attached to the quick changer/valve assembly by metal straps screwed into the stock itself to hold everything together. There is also included a trigger loop under the stock that assists in holding the weapon and adds to the realism/aesthetitics.
When you finish you can add a sling for easier carrying
