... machine 2.ball screw 3.stepper motor 4.high precision rotary device for advertising engraving machine ZK-1224Introduction: 1.the whole lathe ... items: duct collector, helping to suck the dust, milling dust, rotary axis for cylindrical materials, DSP offline control system, when working ... the machine withour the computer and omly use this handle)Rotary axis the forth axis in this machine, (and using ...