... .and we also can add functions.for example: G-code to control the speed of spindle and coolant system . or use 4th ... provides quite enough power to hard work. For the NC control system, including CNC interface board, three stepper drivers, provide ... as STEPPER FREE, EMERGENCY STOP, LIMIT/TOOL ADJUST SENSORS, SPINDLE CONTROL, HALF DRIVE CURRENT, OVER-THERMAL PROTECTION, etc. About its performance ...