I did a fusion 360 reverse engineering of stl files.
I modified the path of the gear to better fit and generally improved to print with FDM printer
**UPDATE 1 05/12/18*** Added a new screw to better keep in place the e3d v6 extruder with less vibrations (use a thread insert M3), added a space for collet clip, corrected the room space for the bondtech idler gear.
link to thread insert M3: https://www.bondtech.se/en/product/thread-inserts/
**UPDATE 08/12/18*** Totally redesigned the holder for e3dv6, now is more easy to insert the extruder with collet clip and bowden tube. Change thread insert with standard nylock.
**UPDATE 22/12/18*** now 2 weeks later i can confirm that it work consistently wery well!!! No issues at all from my point of view and from the results.
UPDATE 01/01/2019 Re-upload the step files, some touch-up here and there.