Ok, today’s test of the GF was to see if it could engrave an egg. After getting a small jig made to hold the hollow egg shell, I gently taped the egg in place to keep the air supply from blowing it around.
The first burn was at 1000 / 10% 450 lpi, with no discernible change on the surface.
I ran a second pass at 30% power and saw a light brown etch.
The 3rd pass was at full power - Bingo! good engrave depth and a wonderful shadow when lighted from beneath. Taking the egg of of the GF was a bit tricky ( I need younger hands). I’ll take the egg and clear coat it now for a little more rigidity. Next we’ll see what a reversed 3D engraving does.