3D Pencil

The Pencil strategy is a dedicated corner finishing strategy. It reliably finds all inner fillet areas, and machines them in a hybrid pencil fashion: Shallow areas are machined using a traditional offset in a similar way as in scallop, whereas steep areas are machined using contour-like horizontal passes. This is beneficial since plunging into rest material in steep areas is avoided (preventing tool breakage), and smoother surface finishes are produced, when compared to traditional pencil strategies.