Reset and Properly Tension the Y-Axis Belt

1. Power off the A1 mini and disconnect the power cable. 2. Locate the Y-axis tensioning screws at the front of the base and remove the protective cap. 3. Loosen both tension screws by exactly one full turn. 4. Manually slide the heatbed back and forth along the full length of the Y-axis three times to allow the belt to self-center on the pulleys. 5. Tighten the tensioning screws firmly. 6. Replace the access cap. 7. Power on the printer and run the automatic vibration compensation and homing calibration sequence through the printer interface to verify the tension is within operational parameters.