Vertical fan variant of 2-in-1 fan duct: extruder and filament cooler for E3D V6

Vertical mount for 40x40x20 as it could not fit in original model.
Two holes added for zip tight mount over heatsink to further increase module stability.

https://www.youtube.com/watch?v=Ija88HGQxRY&feature=youtu.be

STL remix from: http://www.thingiverse.com/thing:1269753