These are the plans to a gun that is fully automatic (or semi-auto if you dont hold the trigger down) and you can get about 55 shots without repressureizing the chamber. I'll be making it in a week and will put up some real pics then. But here are some rough plans.
1) The red dot is the place for an earplug to go partially inside the barrel to keep paintballs in the barrel. the red line is a screw that serves the same purpose on the opposite end. The pb's drop into the barrel one at a time making it fully auto. I've tryed it and it works.
2) The purple chaimber is the primary firing tank (you always use this tank to fire), which is pressureized at 65psi (for best results). You can get 6 shots out of it with an electronic solenoid sprinkler valve. The other 4 pink tanks will be pressurized up to 140- 150 psi and sealed off individually.
3) When the primary firing tank runs out of air pressure(15psi) slowly release one of the secondary tank valves releasing only 65-70 psi to refill the primary firing chamber and reseal the valve. With about 70 psi remaining in the secondary tank and 70psi in the refilled primary chamber you can refill with each secondary tank twice. With four secondary tanks that makes 8 refills plus the initial primary tank. 6 shots per 70psi = about 55-60 shots without reloading!
Ya its alot of tanks to fill so I suggest using an air compressor.
