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Motor shaking with high pith screeching sound.

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Frazatto
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VESC Free
Joined: 2018-06-27 15:33
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Motor shaking with high pith screeching sound.

Does anybody have a clue on what could cause a motor to behave like this?
(check video please)

I made another post where I detailed things a little further, but maybe it will be easier if I try to fix one bizarre problem at a time.
It's a 6355 190Kv sensored brushless motor, with a 4.12 VESC and 12S3P batteries.
In the video, I tried to set it to 80A (as another user has suggested), but the only thing it changed was the sound got louder and more annoying.
If I go super easy on the throttle it's ok, but as soon as I put some load on it or just twist the throttle too fast, THAT happens.

Any clues??