⬢Insert and slightly tighten two M3x12 screws into the X-end.
There is no nut used here. Use more force to tighten the screws into the plastic part. Be careful, not to hurt yourself.
⬢Do not tighten the screws completely. Leave a half of the screw head protruding above the surface of the plastic part.
⬢Slide one bearing on each smooth rod.
Don't forget to wipe off the residue of the grease on the smooth rods with a paper towel.
⬢Push the MINI-X-end all the way on the smooth rods. Before pushing the part on the smooth rods, check if there are no obstructions inside the holes.
⬢Check the correct orientation of the part. The screw holes on the MINI-X-end must face up and the screws on the MINI-Z-carriage-front must face up.
⬢Insert and slightly tighten two M3x12 screws into the X-end. We'll completely tighten them later.