Once in a blue moon, Mr. Ken Hurst drops by. Have had the pleasure of being in his shop a number of years ago, and watching the engravers work.
What they used were very good vises that could rotate in any axis and lock there, scribers, very small chisels, and very small hammers. They carved in steel.
The one machine I have seen that came even close to their work has been around a long time, sells for about $2,400, and is the Gravermeister. I'm certain there are others, but all rely on the skill of the engraver, not magic in the machine.
What we have here is... failure- to communicate.