I have completed two paper cut light boxes in the last month or so. I posted pics of the projects elsewhere. Since it involves cutting multiple layers (usually 10) of white card stock, I wanted to find a way to eliminate smoke staining.
I stumbled across a post where someone had engrave cut a very intricate snake out of copy paper. Then some kind members of the community helped me figure out how to use “stroke to path” in Inkscape so I could engrave cut my card stock.
What I have been doing with each layer is cutting the straight lines (especially the vertical ones) away from the rest of the design. Then I use stroke to path in Inkscape to change the not straight bits from strokes to filled bits that can be engrave cut. I have been setting my stroke thickness to 0.203 mm before converting it.
These are the settings that have worked best for me:
Engrave - Speed 650, Power 75, LPI 225
Cut - Speed 500, Power 60
This cuts nicely through the card stock when engraving and results in minimal amounts of staining.