CIM Motor Sacrifice

[Aren Siekmeier]

Originally Posted by Ludicium

FP motors are better, because you can achieve a higher speed (roughly 19,000rpm) if i am not mistaken. And if you were to create a fly wheel launcher you could overcome the lack of torque a FP provides. Also once you are up to speed you only require minimal current to sustain the launcher. But dont go quoting me i could be wrong. Feedback?

Also the only problem I can see is connection between motor and wheel, direct drive would be best.

I think you need to rethink this. Is an FP at, say, 12:1 better than a CIM at 3:1 (assuming an FP spins 4 times faster than a CIM)? It is better than an RS 775 geared to the same speed, by a torque comparison, but this is not because its ungeared free speed is higher.

Up to efficiency losses, motor power is pretty much all that matters.