iPower 950kV Brushless Motor Cleaning on TBS Discovery Quadcopter - Working on Vibration Reduction

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Continuing my quest for vibration free video. I noticed a grinding sound in the left rear motor of my TBS Discovery. When I tried to spin it manually with my hand there was a certain point where it would bind and grind a bit. I noticed this was causing a decent amount of vibration in this motor. So I took it apart and did a basic cleaning. Now everything appears to work much better. This video shows the process I went through to clean the iPower 2217Q brushless motor.
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