HEVO Hotend Evolution

UPDATE 4/25/2020:
I added a radial fan shroud to block any airflow hitting the print below just because it can't go anywhere else.
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After enjoying my stock HEVO's for some time I decided to do a upgrade of the hotend mount. A good hotend drives a lot of improvements.

Original Design:
- Hotend is too far away from the x-rods

Issues:
- Could causes additional flex and movement on the hotend.
- Requires the print bed to be moved forward to get max print volume

Hotend Evolution:
- Hotend is as close as possible to the x-rods
- Printbed can be moved further back less cramped up front.

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Original Design:
- Installing the X-min endstop requires soldering

Issues:
- Requires customization of the the optical switch (removal of connector, etc)

Hotend Evolution:
- No modification to the optical end-stop is needed.
- X-Max end-stop was removed

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Original Design:
- Inductive probe moves arou