I wasn't satisfied from the models of 40mm fan duct that I found on Thingiverse, because they didn't fit well on my extruder. So I decided to design my own fan duct for the E3D v6. I hope this could be helpfull to everyone who got my same problem.
This fan duct is suited with M3 hex nuts slots that allow a stronger grip and a faster change in case of a broken fan.
Update 06/19: I've improved the model for some issues regarding wall thickness, and created a version of the "clamp" with a shorter internal diameter
I've named it "40mmFanDuct_Thickened" in case the other model is too loose and you need a stronger grip!
40mmFanDuct.stl | 1.2MB | |
40mmFanDuct_Thickened.stl | 1.4MB |