.PHONY: stl 3mf stl: openscad --export-format binstl -o upper_case.stl upper_case.scad openscad --export-format binstl -o lower_case.stl lower_case.scad openscad --export-format binstl -o plate.stl plate.scad 3mf: openscad --export-format 3mf -o upper_case.3mf upper_case.scad openscad --export-format 3mf -o lower_case.3mf lower_case.scad openscad --export-format 3mf -o plate.3mf plate.scad