How do you diagnose and correct a situation where the CNC machine is consistently overshooting its target position?

Diagnosing and correcting consistent overshooting of a target position on a CNC machine involves a methodical examination of the machine's servo system and mechanical components. First, verify the overshoot. Ensure the overshoot is consistent and repeatable across multiple movements and axes. Note the magnitude of the overshoot and the direction in which it occurs. Then, examine the servo gains. The servo gains, particularly the proportional (P) gain, integral (I) gain, and derivative (D) gain, control the responsiveness and stability of the servo system. If the proportional gain is too high, the axis can overshoot the target position. Reduce the proportional gain in small incremen....