there is some confusion with units because the STL file does not use
SI units but uses mm for lengths, whereas internally I use SI units)
When I send an STL file to someone, I usually tell them the units. Usually it's mm, sometimes it's inches. Then when the people import it into whatever CAD software they're using, they apply a scaling factor to represent it in whatever units they use in their CAD file.
So I suspect we'll need to have them provide the units used in the STL file, or perhaps a simple multiplicative value that will convert the units to meters.
When I send an STL file to someone, I usually tell them the units. Usually it's mm, sometimes it's inches. Then when the people import it into whatever CAD software they're using, they apply a scaling factor to represent it in whatever units they use in their CAD file.
So I suspect we'll need to have them provide the units used in the STL file, or perhaps a simple multiplicative value that will convert the units to meters.