Ender 3 Fan Cover

thingiverse

A fan guard designed specifically for the Ender 3 control box is available, providing protection against strings of filament being pulled into the fan. This device redirects airflow, ensuring that hot air from the heated bed does not enter the fan. Installation requires no additional hardware, utilizing two screws from the control box's cover. A stronger version of this fan guard has been added, offering enhanced protection for 3D printing enthusiasts.