CR-10 E3D Volcano mount

Edit: Jan/26/2018 - updated the fan shrouds with a new, uniform design

We took an existing hotend mount on Thingiverse and modified it for improved fit and ease of use. This hotend mount will correctly mount a titan extruder, while the original version remixed from does not (the stepper mounting plate was too thick for proper tightening of the titan mounting screws) We also modified it for ease of mounting, by putting in a relief for the hotend carriage as it has a nut and bolt that can inter