auto edger

Auto calibrating function: start by holding the TEST after setting up the standard calibrating board. Then each falling place of the grinding wheel will be calibrated automatically. Results will be saved automatically after turning off the machine, so it is not necessary to press other s. The operation is easy to be understood and learned. Calibrate lens size automatically: this edger is fixed with auto calibrating system. An initial zero calibration starts in the mean time of the firing of edger, ensuring the consistence of the right and left lens and enhancing the accuracy of lens processing.