Another HBP Wire Guide

This Heated Build Platform (HBP) wire guide is a derivative of Jetty's HBP Wire Guide (Thing 14687),

http://www.thingiverse.com/thing:14687

This derivative has two differences from its ancestor:

1. The wires do not need to be disconnected in order to put this guide into use, and
2. This guide can be bolted to the horizontal, wooden platform of the HBP -- it does not need a vertical cross member to bolt onto which is a good thing as not all build platforms have convenient cross members).

Note that once put into service, the retaining ring becomes a fully encompassing ring from which the wires cannot escape: the slots which admit the wires into each half of the ring are not aligned. Once the two halves are bonded together, the ring fully encloses the wires.