This manual discusses the use and interface of the GibbsCAM Mill/Turn function. The Mill/Turn functionality of the software provides capabilities for programming single -spindle, single -turret lathes that have the capability of driving live tooling. Recommended prior reading: Mill; and Lathe. Last major update: May 2009, for GibbsCAM 2009, v9; last revised January 2015, for GibbsCAM 2015, v11.0