It does it by converting 3D models into slices.

Included alongside the software are the instructions in PDF form and a short video demonstration of Slicer's features, taken from an official Autodesk 'Quick Tips' blog post. Slicer for Fusion 360 is an Autodesk software that allows you to create 3D objects with a laser cutter. The two zip archives were downloaded directly from the Autodesk site where the final build of Slicer was still available at the time of writing. Despite Fusion 360's continuing updates breaking the interoperability with Slicer, it still functions just fine as a stand-alone app for Windows and Mac OS. Sadly, Slicer for Fusion 360 was discontinued and all development ceased some years later. Released sometime in 2017 by Autodesk following the sunsetting of their similarly-scoped 123D tools, this software was originally meant to be an 'app' or extension to their Fusion 360 CAD suite. This upload contains ZIP archives of the software's final build for Windows and Mac OS alongside the instructions and a short demonstration video.

Autodesk slicer