The file 'DJI AIR 3 Registration Number 3D Printer Model' is (STL) file type, size is 446.5KB.
You have to insert a plate with your number on it.
I used a lasercutter to cut and engrave a PMMA/Acryl sheet with 2mm.
Reg-Number.STL | 25.7KB | |
Reg-PlateV3.STL | 1.0MB |