96 Ball Nerf Multi-Cannon

thingiverse

The key thing is to keep your face clear of aim - and wear safety glasses at all times - it's difficult to avoid the 96 rebounding balls... Back to fun: Behold the 12-barrel Nerf ball multi-cannon. Each barrel can hold eight balls. I got a bit carried away with the air flow design, so it's possible to load only one barrel and it'll work - but more fun to fire all 12. Enjoy! To make this you'll need the printed parts and the following: ---A PET bottle - they can hold about ten bars, and the multi-cannon works well at two bars. Made in the UK, so if made elsewhere, threads may be different. ---Schrader valves - search online for something like "4x Car TR43E Metal 11.5mm Clamp-in Tubeless Tyre Tire Wheel Schrader Valves". ---A full-bore 1/4 turn valve that's twenty-two millimeters in size. This works - http://www.screwfix.com/p/full-bore-lever-ball-valve-yellow-22mm/30584. ---Quick-setting epoxy to seal the valves, gauge, and barrel to the plenum. ---A gauge - try searching for a 0-30psi or 0-2bar with a one-eighth BSP thread.