CR6SE 40mm Fan Heat Sink Adapter and Air Flow Sleeve
thingiverse
Remix of a 40mm fan adapter and a sleeve for the hotend block for the CR6SE might fit the Ender 3 series as well, but i don't know for sure. https://www.thingiverse.com/thing:4616618 https://www.thingiverse.com/thing:4756089 The sleeve directs the airflow. Mount the fan in a negative pressure direction. Positive pressure orientation of the fan is more lossy wrt to airflow Did a test print and reworked two corners of the sleeve. will post an update some time later
With this file you will be able to print CR6SE 40mm Fan Heat Sink Adapter and Air Flow Sleeve with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on CR6SE 40mm Fan Heat Sink Adapter and Air Flow Sleeve.