Howdy... I'm trying to engrave onto anodized 6061 using a .006" 15° carbide engraving bit @ 6000RPM @7ipm and around .001" DOC.
The anodizing is NOT hard anodized. In the picture, the letter "l" is .055" tall. You can see a fair bit of chipping between letters "a" and "l".
Any idea how to reduce the chipping? It seems the anodized black version of the same part is less susceptible to chipping than the blue part shown in the picture.
Without a microscope, it looks "not bad" - a tad fuzzy. But I want perfection.