I model in millimeters inside Blender, for 3D printing. Every time I want to Export STL, I have to untick Scene Units and change the Scale to 10.0. These settings aren't remembered.

Blender config for 3D printing

How do I save them as defaults?


1 Answer 1




  1. To remember unit settings make your adjustments then File > Save Startup File (Ctrl-U)

  2. To change STL Export defaults navigate to
    C:\Program Files\Blender Foundation\Blender\2.74\scripts\addons\io_mesh_stl
    and open the __init__.py file.

    global_scale is at __init__.py#L166, change default=1.0 to 10.0

    use_scene_unit is below at __init__.py#L172, change default=True to False

Windows PowerShell Script

Configure Blender STL Export default settings - GitHub Gist


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