Simultaneous Milling, Trimming, Engraving 4 and 5 axis simultaneous roughing and finishing. Simultaneous milling of undercut regions with collision control (tool, holder, machine head, clamping components). 5 Axis Simultaneous Contouring Formed work pieces (e.g. thermoforming moulds) can be trimmed using a contour and tool inclination vectors. Chamfers on freeform components are produced by passing a tool along a 3D contour while remaining perpendicular to the chamfer surface. Tapered surfaces are generally swarf cut, whereby the side face of the tool machines along the tapered faces, guided by a contour (with an optional depth increment). Engraving and carving toolpaths either projected or wrapped around cylindrical, spherical or conical faces (also with double curvature) can also be 5 axis simultaneously machined. 5 Axis Simultaneous Finishing Steep side faces (including undercuts) can be machined with a lateral tool orientation and a shorter tool cutting length using Z constant finishing. Flatter swept freeform areas are generally machined using contour orientated finishing defined by numerous guide curves. By setting a maximum lateral tool inclination, small radii at the bottom of pockets can be rest material finished. Additional strategies include 4 axis cylindrical finishing, lace (parallel) cutting and slot machining (roughing and finishing). Interactive Tool Orientation Control With the help of vector direction symbols, the tool inclination can be manually adjusted from being that of the surface normal direction, which is especially useful in critically tight work spaces (e.g. between impeller blades). The tool orientation is continuously interpolated through any number of vector direction symbols along a contour. This method is also very helpful for faceted freeform bodies (e.g. STL meshes), in order to suppress excessive tool movements. 4 Axis Rotary Roughing 4 Axis Simultaneous Finishing (Axial, Spiral) 5 Axis Simultaneous Contouring (Trimming, Chamfering, Swarf, Engraving) 5 Axis Simultaneous Finishing (Z-Constant, Lace, Spiral, Contour Orientated) 5 Axis Simultaneous Slot Machining (Roughing, Finishing) 5 Axis Simultaneous Undercut Milling Tool Tilting Control (Forward and Lateral Inclination Angles) Collision Checking (Tool, Holder, Machine Head, Clamping Parts) 5 Axis Rest Material (Recognition and Simultaneous Machining) Manual Control of the Tool Inclination at Critical Tight Areas