Screw locking ring
No.18 2
M3 washer No. 7 6
Step1. Put the locking ring on the two smooth rods separately.
Step2. Add the Z top mount (No.W8) to the top of W1. Slowly rotate the rods into the
holes, or add some lubricants on the rods.
Step3. Screw up the top mount, the main frame and the side panel with M3 x 16mm
screw and M3 Square nut.
Step4. Screw up the locking ring on smooth rods.