Ender 3 Max extruder fan mount
thingiverse
The heat creep from the hot end and the trapped air in my printer enclosure were causing the filament to soften and the extruder gear on my Ender 3 Max to grind it down until it eventually snapped or stalled. So I designed this little fan mount to keep the filament and the extruder cool and grippy. Pair it with a 40x10 fan (like the Noctua in the photos). I printed it upside down with the fan mount on the bed and supports for the little legs. You may also need to replace the extruder screws with slightly longer ones (I think I switched the closer one).
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