Kubotek Forum

Look at your print configuration in tools-options.  You can set the width of printed entities.  If "not scaled", I believe the line will be one pixel wide, which is pretty small on a 1200 DPI printer.  The width (in mm) is set by the "flag" value of each entity (it used to be called pen number).  I use 0.212 for flag (pen) 1, and go up from there, but have .071 for #8, which correspondes to 1 pixel on the old 360 DPI printer I used to use, and still is a reasonable minimum width; I set some detail entities to #8 for finer lines.

You can also map it by color number, but I don't as I use color more for on-screen visualization.