Quote:
Originally Posted by fox46
I would tend to think if the controllers work fine and they don't smell like magic smoke, you should be fine. I have seen many teams pushing their robots around while powered down and have watched various lights light up and fans spin from the current being generated and fed backwards through the controllers by the spinning motors.
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You may also notice that spontaneous electrical failures tend to happen in clusters. Some teams have had countless motor controller failures, where other teams haven't had any. The "unlucky" teams are abusing their electronics, whether it is by metal shavings, pushing their robot around unpowered, or other, and they don't realize it because the damage doesn't immediately show itself.
I don't want to sound alarmist, but you have to accept that you have caused some amount of damage to these parts. Have spares ready.