If I export an object with the scene length unit set to Meters (the default), then the size of the object in Blender and the size of the object in the exported 3mf file are identical.
If I set the scene length unit to Millimeters and export again, the object is super tiny in the 3mf file. If I import the 3mf file again into Blender, the object is tiny there as well.
I'm using version 1.0.2 of the add-on and Blender 4.0.0 Alpha.
If I export an object with the scene length unit set to Meters (the default), then the size of the object in Blender and the size of the object in the exported 3mf file are identical.
If I set the scene length unit to Millimeters and export again, the object is super tiny in the 3mf file. If I import the 3mf file again into Blender, the object is tiny there as well.
I'm using version 1.0.2 of the add-on and Blender 4.0.0 Alpha.