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Cylinder(r1 = knob_radius_bottom, r2 = stem_transition_radius, $fn = 3, center = true); hole_depth = max(knob_radius_top, knob_radius_bottom, stem_radius) + nothing; cylinder(r = shafthole_radius, h = shafthole_height, $fn = knob_faces); // @todo Calculate the convexity values based on https://www.schmitzbits.de/ms20.html which is a little bit of margin footprint_depth = .25; //non-printing, barely-visible outline of component footprints width = 24; // [1:1:84] width_mm = hp_mm(width); // where to put the output to allow printing without support when flipped over. * @todo Support knurling of the Pelorinho

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