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Unread 15-01-2012, 10:50
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Re: Pitching Machine Motor Calculations

Quote:
Originally Posted by Cem8301 View Post
One other concern... Can we expect that we can get almost full rpm capability out of the motor? Like my team practices only using 1/2 of the torque capability.. It seems to me that this is a very different application. My calculations read that the exit tangential velocity will be around 63 ft/sec using the GEM gear box and the fp motor combination. Disregarding air resistance and other non motor related variables... can the motor preform like it is expected? Or are there other things to worry about?
The shooter motor is not loaded continously, so it will indeed be able to reach almost the full rated speed if, you give it full voltage. There is no torque available at maximum specified "no load" rpm, so the speed will actually be a bit lower, because of friction.

You'll depend on the inertia of the wheels to put energy into the ball, and the motor will then have to work to get the wheels back up to speed, which shouldn't take too long. So the wheels will slow down some each time you shoot a ball.