Parting Surfaces Parting surfaces are used to separate the mold cavity from the core. Contents Creating a Parting Surface You can create a parting surface, which is extruded from parting lines, to separate the mold cavity from the core. You must create a parting surface to create a tooling split. Parting Surface PropertyManager Parting surfaces split the mold cavity from the core. You create parting lines and shut off surfaces before creating parting surfaces. Manual Mode for Parting Surfaces When you create or edit parting surfaces in manual mode, you can modify the surface directions generated by the Parting Surface command. Interlock Surface The interlock surface surrounds the perimeter of the parting surfaces in a nearly perpendicular direction. As with all drafted faces, the interlock surface drafts away from the parting line. Parent topicMold Design