This is a cable chain I designed for use with my Shapeoko 2, a 3 axis CNC mill. The purpose is to safely guide  loose wires linking the motors on the floating x-axis carriage to the Arduino powering the system, as well as guiding the power cord for the mill safely to the edge of the work space. At the moment, the two ends of the chain are designed to be attached with strong two-sided tape or superglue. I will update if I find a better solution. 

Each link should allow for movement between 0 and 45 degrees. The male end link is inverted while the female end is in the same axis as the rest of the chains. This fits with how the two are to be attached to the Shapeoko 2.

With respect to how they go together, the material must be bendable. I had success with PLA printed at 0.25 mm per layer. Anything thicker and the sides are too rigid to snap together.

Please comment if you have suggestions for how I may improve the design.