pic: What's weird with this image

[Jonathan L.]

Originally Posted by Kevin Sevcik

Unless you have the exact same motors wired the exact same way, they might still turn differently. If a multimeter reads the same voltage when you put the red probe on M+ and the black probe on M-, then I would definitely agree with your assessment.

We did not check with a multimeter so that is a possibility.

Originally Posted by TikiTech

I agree this is odd.

Does the condition move if you swap the "Y" output on the motor controllers?
As in the motors do the opposite as they are doing now.

Try swapping the y cable to the one used on the other side and note if the condition follows.
Or just swap the "Y" cables on the RoboRio.

Does the condition follow the cable or stays with the motor controllers?

I would make sure when recalibrating not to use a "Y" cable.
And test each motor separately and not on the "Y cable.
If the problem still exists only when on that specific Y cable, its got issues.

This should narrow down the issue to the cable or one motor controller.

Just curious is the voltage output of those motors indeed opposite to each other.

We did swap the PWM cables between the talons and on the roboRIO. The problem always stuck on one of the talons (I believe the one on the right of the image).
As I said before, the direction of the motors was the same. We did not test the voltage yet, however.