3D Print Plus and 3D Print Pro are extended versions of the 3D Print utility shipped with Autodesk® Fusion 360™.
Many users on the Autodesk forum asked for a more flexible tool to export STL files.
3D Print Plus and 3D Print Pro are the answers to most of their requests.

Common features for 3D Print Plus and 3D Print Pro:

• Export BRepBody and MeshBody object
• Customize orientation of the exported object
• Ability to scale the object (uniform or non-uniform)
• Convert active unit to millimeter, centimeter, meter, inch, foot
• Mesh preview and mesh refinement option
• Name the STL file with body name, component name, date…
• Send the STL data directly to 3D print utilities

Extra features for 3D Print Pro:

• One-click export
• Save settings in the design between Fusion 360 session
• Export file in a binary or ASCII format
• Ability to customize the STL file header
• Convert the existing STL files (file format and unit dimension)
• Merge existing STL files
• Adjust graphics settings for the mesh display

3D Print Plus is freely available and 3D Print Pro must be purchased.

Both are available separately on the Autodesk App Store.

More information on the Fusion 360 forum.