Customizable Hirth Joint (vertex version) (library)

There's a greatly improved version: "Customizable Hith Joint (CSG version) (library)" the original source . This is a trapezoidal Hirt-Joint generator. usage: either use customizer or use it as a library: hirth( period_number, flank_angle, base_hight, vertex_radius, [cutround_diameter|default=0...do_not_cut_round], [bore_radius|default=0...no_bore], [vertical_stretching_factor|default=1], [colormarked_vertices|default=false]); note: vertical stretching changes flank angle finishing & publishing motivated by: the original source This hosted file keeps creator credit and license details.