... to keep stable moving.3. High accuracy Rack Rail travel method with high speed.4. Imported Square Liner ... Rail, high accuracy, heavy burthen.5. Advanced international technology ... Precision Rack Gears, Z Axis Ball ScrewX,Y,Z Guide railLinear Square Rail from TaiwanControl SystemDSP controllerDrivingStep motorSoftwareArtCam /TYPE3 ( English)CommandG ...