This document discusses how to define a machine for a setup in SolidWorks CAM. It explains that the first step is to enable the SolidWorks CAM add-in. It then describes how to open a part model and select "Define Machine" in the command manager or feature tree to start defining the machine. It also discusses how to customize machine data by launching the Technology Database and either modifying an existing machine or creating a new one by copying an existing one and defining parameters.