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// begin arrow top cutout cylinder(r=8, h=10, $fn=3, center=true); for (z = [0 : sphere_indents_count]) { z_position = sphere_indents_radius + (enable_stem ? Stem_height : 0) + knob_height - cone_indents_cutdepth; for (z = [0 : sphere_indents_count]) { // only keep everything starting at the top.

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