X-Carriage Pillow block Hybrid, Kraken and Wade Compatible with Accessory Mounts

X-Carriage with Pillow blocks allows mounting of Kraken or a Wade extruder. Has three accessory mounts for fan, z probe, or digital caliper.

Servo based auto z probe http://www.thingiverse.com/thing:178791
Added fan mount for use with http://www.thingiverse.com/thing:30721
Buda cooling fan http://www.thingiverse.com/thing:26291

WIP I'm still waiting for the Kraken so slight modifications might be needed.