To Export 3D Solids to an STL File

1. Click File > Export.
2. In the Export Data dialog box, enter a file name.
3. Under Files of type, select Lithography (*.stl). Click Save.
4. Select one or more solid objects. All objects must be entirely within the positive XYZ octant of the world coordinate system (WCS). That is, their X, Y, and Z coordinates must be greater than zero.

   The file extension .stl is automatically appended to the file name.