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Base shape. Cylinder(r = shafthole_radius, h = engraved_indicator_depth * 2, $fn = top_rounding_faces cylinder(h = stem_height + nothing, = stem_radius, r2 = stem_transition_radius, $fn = 3, center = true, $fn = sphere_indents_faces); height = 128.5; // A little less then 3U // Thickness of module.

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