What does a User coordinate do?

• A. Allows the user to define the X, Y, and Z
• B. Allows the user to define tool length
• C. Allows setting joint angles
• D. Allows configuring the speed setting

Answer: (A)

A User coordinate provides a user-defined Cartesian reference frame in space, with its own origin and orientation for the X, Y, and Z axes. This lets you specify target positions relative to that frame, so the robot can reach the correct spot even if the part or setup moves. It decouples motion from the robot’s base, making programs reusable and easier to adapt to different workpieces.

Tool length is a separate offset that accounts for the physical length of the end effector, not where positions are defined. Joint angles describe the robot’s pose in joint space rather than a reference frame. Speed settings control how fast the robot moves, not its target coordinates.