Big Cim's vs. Small Cim's

[waialua359]

Which CIM motor works better for the shooter? The small CIM Motor or the Big CIM? Which one generates a higher RPM? Seems that many teams are using the small one. We are trying to use the Fisher price (big) one and are balls arent traveling that far.

Aloha!!

[sanddrag]

How exactly are you trying to do it? It should work if you are direct driving. I think direct driving the big one is perfect. Less speed, more torque.

[ForgottenSalad]

We ended up going with the big motor for the shooter. Had a hell of a time with the small CIM popping breakers every time we ran it... Way too much current draw in the way we applied it.

[charrisTTI]

We are using the large CIM for the shooter, works great. What is the diameter of your shooter wheel? Small diameter wheel has lower angular velocity at the rim than a larger diameter wheel. Also, at max rpm a motor has no torque, at 0 rpm a motor delivers max torque. So, big cim has max rpm of 2700, but in the application you will not get this with any load applied. Try some different size shooter wheels at different rpms and you will find your best choice.

[sanddrag]

Originally Posted by charrisTTI

Small diameter wheel has lower angular velocity at the rim than a larger diameter wheel.

I think you mean linear velocity.