Step 9: Z Screw / X Rail

Let's get a screw into that nut so we can have a mechanical functioning z-axis. This is simply a standard screw with a few other components such as bearings to establish a secure spinning mechanism. Additionally, the x-axis rail are cut to size.

Quick Steps:

1. Insert the screw through the holes previously made.
2. Add bearing with two nuts to secure the bearing. On the z-axis, it's only necessary to secure the top since you have gravity on your side.
3. Leave enough screw above the bearing and nuts to place the coupler.
4. Add the coupler.

Official Z Screw / X Rail Page


Step 9: Finish The Z-Axis / X-Axis Angles - video powered by Metacafe