These are the objects exported from the 3mf source files as STLs. The original 3mf files gave me errors when not opened in Cura, so I exported these to help others.
InvertedLetterStamps.stl | 4.1MB | |
InvertedNumberStamps.stl | 1.7MB | |
LetterStamps.stl | 4.1MB | |
NumberStamps.stl | 1.7MB |