Ender 3 Mainboard Fan Protector Silencer
thingiverse
A rather over-designed mainboard fan protector for the Ender 3 with the fan on top of the mainboard. It aims to help silence the fan by venting / drawing air from the rear as opposed to the front. The idea is also to slow the airflow entering the device to reduce noise. It's about 18mm high so is a fairly tight clearance from the bed adjustment screws - you might want to check this fits before you print it out.
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