("RST Engineering" wrote)
You are kidding, of course? You are marking a line 40 mils wide and
expecting a piece to come out to 20 mils or better accuracy?


If the line were 20 mils thick, where would you cut? The middle of the line?
The edge of the line?

But yes, a thin line is nicer.


Montblack
"Good enough. No one in the front row will ever notice it."
Theater set construction motto! g