I have the MC Etcher set up as a engraver in CC, not a vee bit. I think of the bit as a pencil more then a end mill. You probably don’t want the 0.25" you have set up as the cutting diameter, that will make pocket operations (to fill an area) difficult. I have the cutting diameter configured as .004" (.1 mm), based on Will’s tutorial.
Attached are a couple of my test files. “Etcher Test.c2d” was on acrylic using a no-offset contour path. You can see the results here:
“Texture Test.c2d” was on a granite tile from Lowe’s:
The heart/paw was filled with a .02" stepover texture in Carbide Create, the label (the name of one of our cats that passed away) is filled as a .008" stepover pocket operation. Everything also gets an outline using a no-offset contour for a well defined edge. I did the outline first because I am impatient and like to see what the design will look like:
Doing the outline first might also keep any chipping contained inside the outline (but that is just a guess, I am new to this stuff).
Etcher Test.c2d (50.1 KB)
Texture Test.nc (197.6 KB)