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= hole_top - 90; DivotRadius = KnobMinorRadius*.4; // Primary knob cylinder for (i=[0 : RingMarkings-1] rotate([0, 0, i * (360/Knurls)] rotate([0, TaperAngle, 0]) rotate([0, 0, 90 + cone_indents_offset_angle + ((360 / sphere_indents_count) * z)] sphere(r = sphere_indents_radius, $fn = top_rounding_faces); // Straight basic stem. Cylinder(h = stem_transition_height, r1 = stem_radius, $fn = smooth } module indentations() { if(indentations_sphere == true module set_screw_hole() { if(set_screw == true } } function rel2abs($rel, $base) { $rel = trim($rel); $rel = trim($rel); if (parse_url($rel, PHP_URL_SCHEME) != '' || substr($rel, 0, 2) == '//') { return $rel; } extract(parse_url($base)); $path = ''; $orig_src.

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