The triangle data from STL files is imported into Alias as meshes.
If checked, vertices within the given tolerance (see below) are merged when the file is retrieved.
This option is only visible if Merge Vertices has been checked. The value is the tolerance within which vertices of the tessellated mesh are considered to be coincident and will be merged. By raising this value, the distance within which vertices will be considered coincident is broadened.
The slider range is 0.0001 to 10. The default value is 0.0001.