I’m an AutoCAD guy, but not a deep engrave guy. I always thought engrave was a color thing? The darker the color the deeper the engrave.
What have you done in the past? Were you printing with plot styles that map a color to a shade / pen setting?
As far as the scaling goes, what are your plot settings at? Only thing I can think of there is you’re not plotting to scale, or are plotting to a wack scale or plotting to fit the page.
Typically so I don’t get the plot scale incorrect, I’ll literally scale things down to fit at a 1:1 plot ratio - what you see is what you get, and draw things at a 1:1 ratio in inches. Hasn’t failed me yet, although scaling topo down isn’t the best method when trying to deal with maps, so I’m going to have to figure out the scaling ratios for that at some point. But keep it simple and it should work.