cnc router for marble engraving 1,4.5KW spindle 2,PC or DSP control 3,Wholly dust-proof 4,incline feeding ... ,3KW,4.5KW(Optional)Inverter5.2KWControl SystemDSP(USB) or PCTypeset Software Type3 (English)/UcancamMotorStepper MotorDriverLEADSHINE860Travelling positon accuracy±0.03Reposition accuracy±0 ...