DIY Coupling: A coupler for the motor and lead screw (from Marc K.)
This creative coupling solution comes from another generous user of the site. He has devised a way to couple the motor to the leadscrew with standard aluminum tubing. Marc has graciously allowed me to show you this creative idea.

CNC Panel Joinery from Make:
Here's a really useful article on CNC panel joinery methods by Make:..

Technique to Minimize Backlash by Gérard C.
Getting rid of backlash seems to be the biggest concern for the CNC hobbyist, especially when milling PCBs since copper traces for surface mount devices are used. Surface mount devices are very small electronic parts that contain leads that are extremely close together, or the leads are found on the bottom of the component and the part usually lays flat on the PCB (Printed Circuit Board).