2-in-1 fan duct: extruder and filament cooler for E3D V6 and others

thingiverse

UPDATE 21-05-2015: Revised Photo Renders, STL Modified, Source File Updated. I deliberately chose not to use two fans around my hotend, one for extruder cooling and another for filament cooling, so I created a double fan duct that can cool both with only one 40mm fan. Results are outstanding, with all prints coming out great, and I haven't experienced any filament jamming thus far. I've uploaded the source files (Solidworks), alongside two STL versions. One is designed to fit the official E3D V6 hotend, while the other is intended for my Chinese E3D clone. They share identical designs except for fan mount width and height: The official E3D measures 22.3mm in diameter by 26mm tall, whereas my clone measures 25mm by 32mm. Determine which version you require by measuring your hotend's diameter; length is relatively insignificant. Installation is simple - screw a 40mm fan into the fan duct with four M3 screws, click the duct onto your hotend, and you're ready to go! The click-on system may be straightforward, yet it offers remarkable strength. My printer experiences significant vibrations without affecting the fan duct's stability on the hotend. Optimal printing involves rotating the print 45 degrees, ensuring the fan duct and its fan mount are at the bottom when creating the part. Both designs are covered under GPL licensing - do whatever you want with the files as long as your modifications remain licensed under GPL and properly credit original work.