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Straight basic stem. Cylinder(h = stem_height + nothing, = stem_radius, r2 = stem_transition_radius, $fn = 3, center = false); z_position = sphere_indents_radius + (enable_stem ? Stem_height : 0) + knob_height - sphere_indents_cutdepth; for (z = [0:sphere_number_of_indentations] for (z .

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