I made a 3 mm diameter pin to mount the 4010 fan on the duct.
https://www.thingiverse.com/thing:3796022
Printer Brand:
Creality
Printer:
Ender 3
Rafts:
No
Supports:
No
Resolution:
200
Infill:
38
Filament: SainSmart TPU clear
Category: 3D Printer PartsThe author marked this model as their own original creation. Imported from Thingiverse.