super soaker with CPS

thingiverse

since the super soaker brand got nerfed, and the bad ass super soakers of my youth are no longer sold, I had to take matters into my own hands. The chamber core, pump core, bottlecap holder and nozzle were Resin printed, the rest is FDM. You will need a CR10 sized printer for a lot of these parts. it uses PVC pressure pipe and fittings, as well as 1/4" push to connect tube and fittings for the internals. I used some 1/4" barb fitting check valves from amazon to make the pump. It uses your classic air compressor blow gun for the trigger valve, like this one: https://www.harborfreight.com/blow-gun-with-safety-tip-and-rubber-tip-63577.html. Here is how the pressure chamber works: One side of the PVC tube has a water inlet (1/4" push to connect fitting) one side has a a presta valve core (like for a tubeless bike tire), between them is the chamber core, which has some O rings and grease, which allows it to slide up and down the tube, but separates the two ends from each other. You pump up the air side with a bike pump to 5-50 psi (this air doesn't go anywhere so you don't need to cart a bike pump around with you) then with the integrated pump handle, you pump water in the other side of the chamber, creating a volume of pressurized water, which is released by the trigger valve. The air pressure means that the stream has pressure all the way through the volume of water, which mimics the CPS systems of old.