Effective working travel:410(X)mm*290(Y)mm*75(Z)mm * Top Quality Professional CNC 3040Z Router Engraver/Engraving Machine Drilling/Milling * Engraving accuracy:better than 0.04mm (has been tested) * Control unit:triaxial one-piece drive + ring variable power + PWM speed * Used in processing Industrial or Hobby Prototype Building, PCB, Advertising Signs, Crafts, etc