My previous air duct was blocking the view of the nozzle from the back, where my camera is mounted. So I made this duct that is mounted on the extruder stepper motor, with adjustable height and ducts to both sides of the print.
Visibility from the front and rear are much better, and with the symmetric ducts it seems like the airflow is more even but I don’t have any data to back this up.
I printed it with PETG, 0.4 nozzle, 0.2 layer, 3 perimeter and 15% gyroid infill.
Renders are made with help of https://www.printables.com/model/672045-ender-3-v3-se-reference-models-step-files
The author marked this model as their own original creation.