Which human body parts are the robot axes named after?

The robot axes are named after the joints and segments of the human body that correspond to their range of motion and functionality. Specifically, the waist, elbow, and shoulder are significant because they represent major points of articulation that allow for a wide array of movements.

The waist corresponds to the rotation around the vertical axis, similar to how a robot can pivot. The elbow represents a hinge joint, allowing for flexion and extension, mirroring a robot's ability to bend and straighten at an articulated arm. Lastly, the shoulder relates to the robot's ability to reach and position its end effector in three-dimensional space, reflecting the multi-directional movement capabilities of a human shoulder.

This naming convention helps engineers and operators understand the capabilities and limitations of robotic systems by relating them to familiar human movements.