@ajtourville Fiber is wound over rotor at high tension load. Machine to do this was made by Tesla Automation. Carbon sleeve must put copper rotor in compression or it loosens at low temp due to differential thermal expansion. Preload is also helpful for maintaining precise gap to stator.— Elon Musk (@elonmusk) Jun 13, 2021

June 14, 2021 at 01:21AM
via Twitter https://twitter.com/elonmusk

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Elon Musk

@ajtourville Fiber is wound over rotor at high tension load. Machine to do this was made by Tesla Automation. Carbon sleeve must put copper rotor in compression or it loosens at low temp due to differential thermal expansion. Preload is also helpful for maintaining…