A dynamic offsetting approach to tool path generation for machining convex pockets

This paper presents a method to automatically generate NC toolpaths with dynamic elimination of machining errors in 21/2D arbitrarily shaped convex pockets. The proposed method generates a spiral-like tool path by computing optimal offsets of the pocket boundary contour based on the size of the milling cutter and the pocket contour geometry. This dynamic tool path generating technique is demonstrated herein with an example.