Leadshine 573HBM20 Series EZ Servo
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Overview of the Leadshine 573HBM20 EZ Servo motors and drivers used on Thunder Laser Nova 35, 51, and 63 models.
Applies toAll machinesTopicGeneral
We use the 573HBM20-L-1000 with driver CL1-507-3LS on newer (around May 2020) 51 and 63 models, and the 573HBM20-LS-1000 with driver HBS57-500(V2.0)on older 51 and 63, and current 35.
According to Leadshine:
LS motor: the motor shaft is lengthened
L motor: equipped with synchronous wheel
More Here: July 1, 2020 Nova Series Changes

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