Printrbot LC+ Quickfit Z-Mount - Bowden extruder

A Bowden Extruder mount for the Printerbot LC+ that mounts across both Z bars. Uses a quickfit attachment to allow easy access to extruder.
So what's a Bowden extruder? Well it's supposed to take all the weight out of the X-carriage so that the print head doesn't vibrate as much... Read quieter & more accurate. This is an experiment to see how true that is.
(Thanks TDEAGAN for the wonderful idea of running it across both z bars)