Design and preparation are separate jobs
CAD is where a part or drawing is created. CAM turns suitable geometry into toolpaths for CNC machining. Laser software prepares vector or raster work, while scan software aligns captures and produces a mesh.
The file is not always the finished model
A scanner normally produces points or a mesh, not a clean parametric CAD model. Reverse engineering adds cleanup, surfaces and dimensional checks after capture.
Check the hand-offs
List the software you already use, its export formats and your computer platform. Then verify each hand-off with a real sample file. A machine is a poor fit if the workflow depends on a format or operating system you cannot use.