Folks: we’re getting closer! This print was 0.6 mm off — forgot to set the PCB thickness parameter to 1mm - but I’m starting a new print now that I can play with a week from Monday. (Why that long? I’m going off-grid next week for a much needed vacation.) Anyway, OpenSCAD script is now decent enough to share. Sorry it’s kind of mayhem; I’ve been hacking on it piecemeal for ages… https://gist.github.com/joeycastillo/1835151d5760fa730ffa566defb53698