After the crash of my drone DJI Spark, the blades of the main cooling fan were damaged. I shot the original damaged fan and redrawn it in Fusion 360. Now is dron again ready to take off.
Build surface: PEI steel sheet
Bed temperature: 100 °C
Extruder temperature: 255°C
Cooling fan: disabled
Enclosure: opened front door (20 °C)