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These were used in the same form factor, with maybe a little bit of margin footprint_depth = 1; top_margin = (board_height - hole_vdist) / 2 + (enable_stem ? Stem_height : 0) + knob_height - cone_indents_cutdepth; for (z = [0 : sphere_indents_count]) { // main cylinder cylinder(r1=knob_radius_bottom,r2=knob_radius_top,h=knob_height, $fn=knob_smoothness.

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