Insert 2 LM8UU liner bearings into each X-End. They may just slide in from one end. If not insert into each end. (Top/Bottom)
Insert 3 LM8UUs into the X-Carriage. 1left side top, 1 right side top and 1 left side bottom.
If you haven't already, Now is the time to lubricate the LM8UU bearings.
Oils are not recommended.
Slide the 2 390mm smooth rods into the liner bearings on the X-Carriage.
Now we will clamp the bottom bearing into place.
Insert 1 M3 x 10 screw into the upper hole of the Bottom bearing clamp.
Use hole in motor plate to tighten screw.
Hold M3 nut in bottom nut trap until screw firmly in place.
Add X-Ends to smooth rods. Be sure the clamps are on the same side as the motor plate and that the smaller hex opening is at the top.
If you haven't already, insert the 8mm nuts into the X-Ends. It is easiest to thread them partly on to the end of a threaded rod and push them down.
Please ignore the Rack assembly in these pics.
Thread Rack onto 6mm rod to about the middle. Thread nuts on either side of Rack to hold in place. Do Not Tighten, as some minor adjustments may be needed later.
Use Pinion to verify Rack orientation as in picture and thread X-Rack clamps on so that the screw holes are on top and the nut trap is facing you.
Attach Rack to X-Stage with 50mm 3M screws.