This is a reupload of blackbird2016's STL files for the active cooling used in the E3D v6 mount project: https://www.thingiverse.com/thing:2524128

Original upload text:

First I want to say that I designed this thing with the greatest respect and gratefulness for http://www.thingiverse.com/thing:537918 which made many a good print possible in the first place.

And still... Experiencing the limitations of my equipment and with increasing expectations of my prints I had some serious cooling issues.
This thing is designed for maximum airflow onto the object using common or even existing 40mm fans. Due to the overhangs printing it the first time without any active cooling one should use cool air of a hair-dryer or similar for a proper print. A common 40mm fan fits snug without screws depending on how well your printer is dialed in. Same for the brackets. Certainly there is need of reworking the hexagons to fit these little gizmos.
It is no remix but a completely new design from scratch but certainly orientated on the already existing.

The purple Marvin I printed with my favorite material using the above mentioned air duct and additional (cool) hair dryer. The red one is my worst colour, somewhat over extruding and printed using the new duct. I think it shows some difference between both.

I do know that this is far away from being perfect, most of you guys may have way better printers. Considering the limits of my CTC equipment I am very satisfied.

For more cooling power one might check on the latest thing http://www.thingiverse.com/thing:1905135