Advanced 3D with HSM enhancement for GibbsCAM SolidSurfacer introduces a range of advanced three-axis milling functionality with support for high speed machining. The three-axis capabilities provide more control and flexibility in toolpath generation with internal high-speed machining support. The enhancement includes support for 3D material only; support for more advanced tool shapes (tapered tools); new types of finishing processes; improved toolpath quality; options to provide toolpath that better supports high-speed machining; improved toolpath quality; improved use of boundaries; enhanced entry/exit control; ability to directly machine faceted bodies, including imported STL files; automatic core/cavity detection for inside out or outside in determination; operation splitting for tool wear and for optimal length out of holder; multi-threaded for multi-CPU machines and support batch toolpath generation; and automatic filtering of a surface to avoid sharp concave corners.