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BackOr does it need a bigger flat flat_size = 5 square(top_rounding_radius + pad, top_rounding_radius + pad); circle(r = top_rounding_radius, $fn = sphere_indents_faces); height = cone_indents_height + 2 * nothing, shafthole_cutoff_arc_height + 2 * nothing; z_position = sphere_indents_radius + (enable_stem ? Stem_height : 0) + knob_height - sphere_indents_cutdepth; for (z = [0 : cone_indents_count]) { // generate holes for easier printing