Z Belt Link and Tension

Feb 2 2018 EDIT: someone remixed this and fixed a few issues so look here https://www.thingiverse.com/thing:2780154


This is a printable part to add in linking your Z motors. It also provides a mechanism to tension the belt.

Part requires 3 Belt Idler Pulleys and 3 M3 bolts I used the following parts in my Z link:

UPDATE May 28 2017
Some folks noted a bit of rubbing on the ARM if fully extended, so i recessed the edges and resolved that issue.

Idler https://www.amazon.com/BIQU-A