x axis Belt Tensioner

Belt would stretch over time and I wanted an easier way to tighten it.

Insert a 4 mm cap screw into the fan mount with a backup nut but leave it loose until the belt is tight. Install the 4mm nut into the end piece and then attach it to the cap screw. Replace the fan mount with the new mount. Attach the belt and secure with wire ties. Tighten cap screw as needed. Align pulley on the motor.