Quote:
Originally Posted by DonRotolo
With one driven wheel at 1500 RPM, you get the same exit velocity as with two driven wheels at 750 RPM. So I am leaning towards the two driven wheel solution.
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I think the initial velocity of the ball is a function of the rotational velocity at the edge of the wheel. Wouldn't your 2-wheel example just produce 2X torque (if driven at the same speed) rather than 2X initial velocity of the ball? I must be missing something...
Our students built a 2-wheel prototype (both on the bottom) that is pretty consistent and decided not to look at a 2-wheel (top & bottom) shooter.