Size Adjustment (+, -) when working properly or appear damaged wheel can be adjusted automatically by a computer control keys, accurate to 0.05mm lens size can increase or decrease. Effective use of grinding wheels, DIA is to extend the service life of the grinding wheel, grinding to do about mobile roughing, effective use of wheel width. STOP stop grinding process needs time to pause and resume using in situ. Automatic lens system automatically clip clip lenses, computer gear selection pressure 1-3, arbitrary adjustments.