Quote:
Originally Posted by bobby5150
CIM motors are the most durable motors allowed in FRC.
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I will second that. CIMs are some to the most durable motors I have worked with in any application. However, like any motor, they
can be damaged by overheating. See
this thread for a good example.
Also see
this other thread for some details on how CIM motors heat up when loaded to their maximum mechanical output power.
As many long time FRC participants can attest, CIM motors typically last several seasons unless severely abused. Measuring their free current is an easy way to detect such abuse. Typically that will be about 3 Ampere when first started and will reduce to about 2.5 Ampere after running for a few minutes -- friction reduces a bit when the bearings warm up.
__________________
Richard Wallace
Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
since 2003
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)
They have a ton of spirit but they are somewhat humble in their application of it. - firstfollower [more] 
10-12-2013, 20:51
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