For the "Rough" tool you can choose to have it pre-finish any flat (horizontal) regions on the cross section, which are common on a lot of Moulding shapes. For the "Finish" tool you can opt to "Vary Stepover", this can be used to improve finish on shapes that have a lot of steep angles or curves on the cross-section. The Moulding Toolpath has some clever options to further improve finish and efficiency. The Moulding Toolpath function allows you to specify two tools, one to in effect "Rough" out the majority of material with a larger tool and then the other to do the "Finishing". The shape is specified by selecting two vectors the first will represent the Drive Curve of the shape and the second defines the Cross Section that will in effect be extruded along the Drive Curve to create the swept shape when machined. This function generates an efficient and smooth toolpath to cut 3D shapes such as mouldings, arches and frames that have a constant cross-section.
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