First time engraving/ etching shot glasses and I think they came out perfect! Just sharing some pics/ specs I did for them.
These are squares so they laid nice and flat. They also measured 1 and 3/4 inches. So it was perfect for taking out the crumb tray.
My settings were:
.25 Focus Height
They had a foggy layer of glass over the initial engrave, but once I scratched / clean that off, the engraving is perfect and strong. It is even sunken into the glass just like it would do to wood.