starman wrote:For a real multishot, go for a High Pressure tank and regulator. Everything else can stay the same if you keep shooting pressures reasonable.

What are the best materials for a high pressure tank? Could PVC pipe work? And where would you put the regulator?

Okay I looked up compressed air regulators. If I read correctly, they limit the output pressure at fixed or variable levels. My only concern is my current prototype (only has one tank) is being used with only 50-60psi. Would limiting output to 40 leave enough air in dual tank design for two shots?

Hello fellow makers, I just built a t-shirt cannon using a design from Make: Magazine for my school pep assemblies. I'm trying to come up with a design that can shoot multiple t-shirts with one pump of the tank. I had a multi-tank system with a ball valve for each tank, but the system would be compl...