Patent ID: 7337699

Claim:
An on-car disc brake lathe system for resurfacing a brake disc of a vehicle brake assembly, the brake lathe system comprising: a lathe body with a driving motor; at least one cutting head operably attached to the lathe body; an input adaptor configured to be attached to the vehicle brake assembly; a rotatable drive shaft; an alignment mechanism including a sensor, the alignment mechanism operable to generate a measurement signal indicative of an orientation of a lathe axis of rotation with respect to a rotor axis of rotation and to adjust the orientation of the lathe axis of rotation with respect to the rotor axis of rotation; and a microprocessor coupled to the alignment mechanism to electronically generate at least one control signal in response to the measurement signal, the at least one control signal used by the alignment mechanism to improve the alignment of the lathe axis of rotation with respect to the rotor axis of rotation.