Step 1. Fix the 4 Bearing Brackets on the back of the X Carriage loosely with M3x6mm screws. Insert the linear bearinginto the slot and screw the bracket tightly.
Step 2. Fix the belt mounts on the back of the carriage with 2 M3x 10mm screws and M3 hex nuts.
Step 3. Fix the extruder holder on the front side of the X carriage using M4x6mm screws.