A circular fan nozzle to provide cooling from all sides on a printer with MK8 based extruder. The part is very light (12 gram) and therefore does not need any additional support, just pressing it in the fan outlet like the original funnel is sufficient.
The design leaves space for the heater and thermistor wiring.
OpenSCAD file is also included so you can change it any way you like.
Infill is not very relevant as there is virtually no infill required for this part. Make sure bridging works decently on your printer.