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Unread 25-01-2014, 19:30
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Re: Using CIMs at 30 amps?

Quote:
Originally Posted by Joe Ross View Post
A mini-cim has about 70% of the power of a CIM. Do you recommend that robots with CIMs limit themselves to 7-10 feet per second?
I guess I was unfair with the assumptions I made. I also put loaded speed not free speed which I should have clarified. Assuming single speed 4 cim 7-10 fps would be my recommendation, so thats around 9.5 fps -13.5 fps free speed. Can the motors be pushed faster than that? Yes, but I wouldn't recommend it. Potential turning and acceleration issues depending on the drive train, but every application is different so it's not a be all end all recommendation.

I would be concerned with the decrease in stall torque with the mini cims more than the power loss.