Dynamixel AX-18A Robot Actuator Highly advanced, affordable actuator Recognized as a leader of servo motors amongst roboticists Has various feedback functions that allows tracking of its position, temperature, load, input voltage, etc The control algorithm can be adjusted individually for each actuator controlling the speed and strength of the motor's response All sensor management and position control is exercised by the AX-12A's build in micro-controller, leaving the main controller free to perform other functions