Geeetech i3 PRO B E3D extruder holder with 18mm/12mm abl-sensor mount and 40mm cooling fan

This is a modified version or extension of the E3D V6 holder for Geetech I3 Pro B from http://www.thingiverse.com/thing:1776229 .

I added a coolingduct for a 40mm fan and a mount for 18mm sensors on the side for autbedleveling.


Update 05/04/17: A version for 12mm sensors is available now.