Eugene I did mine with 60 degree v-bit lowest rpm and about 110 ipm and a depth of .03 I've been following the vetric forum for 5-6 weeks reading everyone's posts comparing numbers and different bits used and the quality of what I've seen . Until I finely came up with what I felt comfortable with . And have had good luck so far . The next move will be a diamond drag engraving bit . Anyone has any questions I'll be glad to share what I've learned so far . Wish I had aspire to try 3-D . someday
Jeff King
shopbot buddy BT-32
P/C - 3.25 hp
The things I make may be for others ,
but how I make them is for me . T. Konovaloff