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= sphere_indents_radius + (enable_stem ? Stem_height : 0) + knob_height - cone_indents_cutdepth; for (z = [0 : cone_indents_count]) { // color([1,0,0]) // linear_extrude(thickness+1) // text(string, size, halign=halign, font=font); // draw a "vertical" wall to mount a circuit board to, dead center pcb_holder(h=10, l=top_row-rail_clearance*2, th=1.15, wall_thickness=1); // lower h-rib reinforcer ## Photos.

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