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Safety margin // margins from edges h_margin = thickness*2; v_margin = hole_dist_top*2 + thickness; right_rib_x = width_mm - h_margin; //special-case the top knob top_row = height - v_margin - title_font_size*1.5; top_row = height / 2 + hole_diameter + hole_margin*2; side_margin = (board_width - hole_hdist) / 2; standoff_radius = hole_radius * 2.5; standoff_height = 3; /* [Sphere Indents (optional)] */ // Create a round shafthole base shape. See knob_base(). Rotate([0, 0, 90 + cone_indents_offset_angle + ((360 / sphere_indents_count) * z)] sphere(r = sphere_indents_radius, $fn = top_rounding_faces cylinder(h = stem_transition_height, r1 = stem_radius, $fn = sphere_indents_faces); height = 128.5; // A little less then 3U // Thickness of module (mm) - Would not change this if you want a large timer-knob style pointer? TimerKnob=0; // [0:No.

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