... Cartesian coordinate robot, Single-axis robot arm, Industrial robotic arm, single arm robot, beam type robotic arm, linear modular unit, electric cylinder.1 ... belt or pinion and rack drive type of robot arm.3. The selection and functional description of robot ... of 1-4 axis motion control, and the servo motor driver in the straight line, plane, 3D ... and arrangement: X-Y double-axis robotic arm system