... stepper motor 4.high precision High-accuracy engraving machine with ball screw ZK-1224Introduction: 1.the whole lathe bed is ... , PVC plastic, plexiglass, acrylic, organic glass, marble, granite, aluminium, copper, steel and many other material.Specification: Model:ZK-1224Machine body ... -axis use cylinder guideway Driving mode :XYZ-axis use ball screw X,Y-axis working area :1200*2400mmBody dimensions( ...