What to Consider When Rotary Engraving Wood

Wood can be rotary engraved, but ranges from very soft (pine, balsa, etc.) to extremely hard (walnut, ash, etc.) Order tools for the specific materials for best results. In general, for harder material and/or the deeper you cut, feed rates should be slowed, and the number of passes should be increased. 

—Chuck Donaldson, Antares Inc.