MOTION PRECISION ANALYSIS OF PERMANENT MAGNET SYBCHRONOUS GRINDING MOTORIZED SPINDLE by GAO Feng, CHENG MingKe, LI Yan, HE PingPing, JIA WeiTao

“…The least squares approximation algorithm is applied to fit the radial trajectory of the spindle,and then the inclination error is modeled to obtain the tilt angle of the spindle’s axis of rotation. …”
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