Ender 3 Hotend Fan Cover
thingiverse
I made this cover for the hotend cooling fan, because at times I notice tiny strings and particles of filament get sucked in by the air stream and end up around the fan blades, causing annoying noise. The way to prevent this was to make a cover, which is placed in front of the fan, with a hole facing upwards, which potentially reduces the chance of stuff from the hotend to get inside the fan. The cover attaches to the metal fan mount via magnets so it's easily removable for maintenance. EDIT: Added versions 5mm x 5mm x 5mm cube magnets 5mm x 5mm cyllindrical magnets
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