User Guide

5-axis MachiningSolidCAM2005 Milling Manual
148
Each surface point is associated with a surface normal that is always perpendicular to the surface at
that point.
In 3 axis machining this surface normal for a ball end mill points to the cutter center. The cutter axis
always comes from one direction, usually it is aligned with Z. In some rare cases the cutter is aligned
with the Y axis.
Surface Normal
Z