Finishing touches on Engraving stones

I recently tried engraving stones and have found that the engraving leaves an edge around the letters. What have you used to smooth the rock again and make the engraving more clean looking?

An edge?
Can you show a photo example?

probably too high an energy, better 2 or 3 times with less energy.

Yeah, that just looks like it’s being blasted too hard.
Less power, more speed…

Oops! Ok. Thank you for the feedback