A lot of our vector drawings are for engravers who tell us they will use the vector file for relief engraving, laser engraving, sandblasting, etching, or cutting. I am guessing these are some of the few process left that require vector art. Although I have never actually used an engraving machine or tool, I have been preparing vector graphics since 2000 for many different purposes including engraving and sign cutting.
Below is a recent engraving project
The image engraved on this stone needs to be reproduced in vector format
This is the vector drawing as per Engraver specifications