Main mount and duct are now revised and hopefully fixed.
This is a Beta for a V6 hotend mount with provision for a 40mm hotend cooling fan, and 5015 part cooling for the Creality range of printers.
The duct has been CFD optimised for effective part cooling flow, and the hotend cooling has been directed away from the printed parts as much as practical, but this could be an area for improvement based on feedback.
ABL mounts are the same as my 30mm V6 mount (https://www.thingiverse.com/thing:3138159).
The duct should print in the downloaded orientation with zero support. The Mounting plate has nut recesses in the back which may require minimal support. The clamp requires none.
18-1-19: V2 of the main mount added once it was discovered that Creality have made the hotend mounting points 1mm taller.
20-1-19: New files uploaded after Fusion had a fit...
23-1-19: A duct to suit The J-Head 12 Hi Flow hotend has been added. This should be used with the basic mount. Note that I haven't modified the BLTouch mount to suit yet.