In the time it took for this topic to be moderated and posted, I had found a good explanation in a tutorial. http://inkscape.org/doc/tracing/tutorial-tracing.html (look for the penguins). I was using Edge Detection, instead of Brightness - the output in my first post is how it's supposed to work (op...

I happened across Inkscape while looking for a better way to create hpgl files for my PCB engraver. While Inkscape is hands down the best so far, it does have a peculiar quirk, (for lack of a better explanation) it seems to be tracing my traces. The output hpgl file is made up entirely of dual lines...