Z Chain relocation remix

The original designs were good but would not quite work my other mods (Gantry Camera, Chamber Thermistor, and Klicky PCB)

Slightly modified existing designs to meet my Canbus and USB Cable routing needs.

Gantry Mount V2 has just an added tie point. 

Gantry Mount V3 is extended to add some cable support over the camera, as well as a mount for chamber Thermistor. You will need an additional rail nut and Screw to mount if you use v3 Gantry Mount.

Use this design with my other remix to complete your Umbilical Mount:

Umbilical Cable Bridge with Support Wire Mounts