Reducing the length from installation side to surface of slide to save space. Using servo stepper motor to enhance accuracy by driving timing belt with minimum pitch. Using four linear ball bearings to sustain the load of slide and maintain stable and smooth motion. Integrate the controller into stepper motor and it has memory function for programming. Three-phase stepper motor: incremental type 10000P/R, including 3 input、2out. All in one: program control mode, pulse control mode and terminal control mode.