I’ve gotten a little frustrated with the limitations of using Processing to generate PDFs for laser cutting. Primarily, there’s no support for “hairline” thickness lines, which add an extra step to getting things ready to lase, and there’s no way to separate lines into different layers so it can be hard to work with the file later if you want to raster etch some lines and vector cut others.

Adam suggested looking into a DXF library someone had written for Python. Indeed, there is a very nice library. Unfortunately the original documentation for it seems to have gone missing.

I’ve started documenting the library, it’s called SDXF and is pretty thorough. I don’t know Python, or DXF, but so I’m picking up both as I go along.