Simple, modular extruder fan duct
Description
This is a very simple hot-end fan duct i had to make as i modified my extruder. It mounts directly to a 40mm fan, either in front or behind. It has two different attachment depths and three different ducts, two of them split the flow between the hot-end and the cool-end. I printed it very crudely with a 0.8 extruder and a 0.5mm resolution, but it works fine. Of course I would recommend a finer print with a more standard 0.4 extruder. I would also recommend PETG filament or at least ABS as i haven't made a PLA model.
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