The CAM-Part includes the following data (e.g. for a CAM-Part whose name is Turning):
The Turning.prt file located in the SolidCAM User directory.
The Turning subdirectory containing all the data generated for the CAM-Part.

SolidCAM copies the original Autodesk Inventor model to the subdirectory Turning and creates a Autodesk Inventor assembly that has the same name as the CAM-Part (Turning.iam). There are two components in this assembly:
DesignModel.ipt - copy of the Autodesk Inventor model file.
CAM.ipt - contains SolidCAM Coordinate System and geometry data.
SolidCAM CAM-Part uses the assembly environment of Autodesk Inventor. This enables you to create auxiliary geometries (e.g. sketches) without making changes in the original design model. You can also insert some additional components into the assembly file such as clamping and other tooling elements.