I have used Ball Em to the 60deg spade shown in the links from Cutting molds to parts to prototyp stuff. there are allot of good thoughts here.
The level of the surface being engraved must be flat for the text to come out clean looking. If it isn't the text will be deeper in some areas than others.
if you don't know the proper way to do it this is an issue. but other wise not a true statement.
Here is a few thinks from the last year and the Mirror plaque from my old show car from 10 years ago.
Also if you want some mastercam basics for engraving use my link in my sig and at the bottom of the page there is a button called Engraving.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
Cadcam
Software and hardware sales, contract Programming and Consultant , Cad-Cam Instructor .