The plate handler's calibration involves defining the servo motor's movement range using pulse width modulation (PWM) values, allowing for precise control. A consistent calibration approach is applied to a suite of scripts that control various plate handler actions: closing, opening, downward, and upward movements. These scripts are fine-tuned by adjusting PWM values to achieve specific positions and grip strengths, accommodating different labware types and weights, with mechanical stoppers and structural designs limiting the range of motion (see project's repository for full details).