I wrote up a tool years ago that would take a nav log and print the charts onto long strips of receipt tape, basically as an artistic venture. The Epson thermal

I wrote up a tool years ago that would take a nav log and print the charts onto long strips of receipt tape, basically as an artistic venture. The Epson thermal printers can do surprisingly nice halftone once you figure out which of the several ESC/POS raster modes they like the most, although the printing is very slow compared to the usual text speed. Unfortunately I don't think I have the scripts any more.