360 Degree, Rotating post launcher

[purduephotog]

Originally Posted by CalTran

It's basically an Archimedes screw, but going faster in order to shoot, correct? I would definitely prototype something for this, but also keep in mind the sheet size of the end result. Say you use a 2" inner post. That's going to be at least a 2' cylinder, not including outer thickness.

Yup. A theoretical exit velocity of 15 mph at least, if the math holds. A larger post, 45mph, but that requires more space and exceeds the width requirement.

Of course it could be spun faster at a smaller size to take advantage of the additional contact and acceleration time.

Hrmm... interesting thoughts.