Optimum Ball Mechanics

[Tom I]

Originally Posted by Matt H.

It's often a good idea to gear your motors for peak efficiency, which in the case of the CIM means 4614 RPM at 45 oz-in of torque.

This may be me being stupid and missing something, but how exactly do you go about gearing motors for peak efficiency? I get that at 4614 RPM with 45 oz-in of torque you'll get the maximum power output from a CIM, but say I'm gearing up a thrower, how would I actually go about this? Do I have to account for the resistance of throwing the ball as the torque and calculate out what that will put on the motor?

[Jecht22]

Originally Posted by Tom I

This may be me being stupid and missing something, but how exactly do you go about gearing motors for peak efficiency? I get that at 4614 RPM with 45 oz-in of torque you'll get the maximum power output from a CIM, but say I'm gearing up a thrower, how would I actually go about this? Do I have to account for the resistance of throwing the ball as the torque and calculate out what that will put on the motor?

This was the exact question I was about to ask.

Also I had wanted to maximize accuracy but also have the option to shoot at range. I know that the further away from the hoop, the less accurate the shot but is it physically possible to run a ball shooting system like this one, and get the balls from one corner of the field to hit the top backboard on the opposite side. This would be useful not just for attempting to score but to feed the balls back to your side of the court.

[Ether]

Originally Posted by Tom I

I get that at 4614 RPM with 45 oz-in of torque you'll get the maximum power output from a CIM

No, you won't. Maximum power is at 2655 rpm and 172 oz-in.

Maximum efficiency is at 4648 rpm and 43 oz-in.