Quote:
Originally Posted by ImOn3618
When we set the robot up on blocks (minimal load), only the motors go into brownout protection mode.
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As cmwilson13 notes,
this is your problem.
It could be mechanical, but I suspect one of your CIMs is turning against the other. Unplug all breakers except one, run the drivetrain and note the direction. Repeat for all other CIMs. Let us know what you find.
As for mechanical: If you cannot easily turn the wheels by hand (robot off), disconnect things until you can. Whatever you just disconnected has a mechanical problem, for example a gear in backwards and rubbing the housing. Happens all the time.