[GreyingJay]

Somewhat related question about CIM heat:

The first day we did a drive practice session, we kept going and going and going, swapping out batteries as needed. Nobody was thinking too much about motor heat or letting the robot rest. Eventually we noticed the smell. Someone described it as smelling like yoghurt. I ascribe it to burning plastic. Knowing where it was likely coming from, we turned our robot upside down and, sure enough, the four CIM motors were extremely hot.

At what point has irreparable damage been done? I assume the fact that I can smell plastic is not good news, but the robot still seemed to drive fine after being given a cool down period. This suggests to me that windings have not melted or shorted appreciably.

We will probably want to test the internal resistance of the motors once the practice bot is eventually disassembled.