Using a CIM to power a vacuum system?

[ravichauhan]

We tried doing this last year to hold the ball. It didn't work with a 1:4 overdrive out of the cim. If you do try it needs to have an even higher gearing. If I understand it correctly, you only need enough torque out of the motor to turn the impeller. Therefore it would probably be better to use one of the banebots since they have much higher rpms.