Water Bottle Rocket Nozzle

This is a nozzle for a "water bottle rocket". Will need to be sealed to hold pressure (75 psi max) Fits a Pitsco AquaPort2 on the bottom and room to glue a standard sized bottle cap in the top. Nozzle hole is 9mm and fits around the new fittings. Bottle cap should be cut to allow water through but still seal on the lip of a standard bottle (see image). Sand surface and hot glue into nozzle for a nozzle that can be swapped between bottles (see images). Inventor file has been included if you need to change throat diameter (bigger only) or throat angle (135 off walls, 90 degree cone). You can see the versions I went through. (Left to right; 3DS Max (fail), Inventor 1.0, Aquaport seal test, Inventor 2.0, Aquaport locking clamp test) Final version printed and shown with and without glued in bottle cap.