Why is it recommended that each new program in KUKA robots starts and ends at the home position?

Starting and ending each new program in the home position for KUKA robots is vital to ensure consistency and accuracy across programs. The home position is a predefined and known location where the robot can reliably return after each operation. This practice eliminates variability in the robot's starting and finishing points, which can arise from external factors like load changes or varying environments.

By consistently using the home position, users can establish a standard reference point, making it easier to troubleshoot errors and execute sequential operations effectively. It also simplifies the programming process, as each program can assume the robot is in the same starting configuration, reducing the potential for misalignment or errors that could occur if the robot were to start from an unknown or inconsistent location. This method ensures that programs can be executed with precise repeatability, which is critical for tasks requiring high levels of accuracy in industrial applications.