From FreeCAD Documentation
- Select a single mesh object.
- There are several ways to invoke the command:
- Press the Export mesh... button.
- Select the Meshes → Export mesh... option from the menu.
- Select the Export mesh... option from the Tree view context menu or 3D view context menu.
- Select the correct file format in the dialog box.
- Enter a filename. If you have selected the
All files (*.*)
option in the previous step, and do not specify a file extension here, the .stl extension will be used.
- Press the Save button.