real filament PLA
Some slight fill issues. Might have been better at 0.1mm and/or higher fill. I added blockers in Cura to prevent it adding supports in the holes for the nuts. It did on my first try, and I couldn't cleanly remove the supports there, with the nuts ending up sticking out. Also PauseAtHeight in Cura 4.2.1 has a bug that returns 1mm too high, making it print in empty space (but that was easily fixed in the .py).