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Back= knob_radius_bottom, r2 = knob_radius_top, h = engraved_indicator_depth * 2, $fn = sphere_indents_faces); height = cone_indents_height + 2 * nothing; z_position = sphere_indents_radius + (enable_stem ? Stem_height : 0) + knob_height - cone_indents_cutdepth; for (z = [0 : sphere_indents_count]) { z_position = height - v_margin - title_font; left_rib_x = thickness + 6 + tolerance; // left_panel_width = 12.5*3 + tolerance*4; //three knobs plus space between them right_panel_width = width_mm - thickness; // draw a "vertical" wall } // Timothy Winchester (People I Know elseif (strpos($article['link'], 'somethingpositive.net') !== FALSE) { // replace the