RepRap for Science—How to Use, Design, and Troubleshoot the Self-Replicating 3-D Printer - Open-Source Lab: How to Build Your Own Hardware and Reduce Research Costs - page 108

FIGURE 5.11 Components of z -axis.
To assemble the z -motor mounts, face the y motor mount toward yourself and then on the
right put on z -motor mount with a washer, washer, and nut. Use the smaller jig to get the dis-
tance between the two triangles more or less right. Then put on the second z -motor mount on
the left with washer, washer, and nut. Mount the motors to the motor mount with M3 screws
as shown in Figure 5.12 . Next, put a nut, washer, rod clamp, washer, and nut on each side of
the botom threaded rod. Then put the vertical smooth rod through the botom-rod clamp and
use a level to adjust the botom-rod clamps to the correct position. Lubricate the LM8UU bear-
ings with white lithium grease. Atach the smooth rod from botom to top on both sides with
two bearings on each smooth rod as seen in Figure 5.12 .