When processing brittle materials on the edges of the material, the chip can break off. It is necessary to use a milling cutter to cut the edge of the processed contour in order to avoid the chipping of the material, then all the remaining material is provided in the opposite direction, since the formation of chips is no longer possible, and this is a more favorable movement for tools for removing coarse material. I'll give an example, now it's done, I ask you to combine these two operations to optimize the movement of the instrument