This manual discusses the use and interface of the GibbsCAM Milling option. This manual is intended for users of a basic 3-Axis Mill; however, the lessons learned also apply to Mill/Turn and to more advanced 4-axis and 5-axis Mill parts. Recommended prior reading: Geometry Creation. Last major update: February 2009, for GibbsCAM 2009, v9.0; last revised January 2015, for GibbsCAM 2015, v11.0