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Aesthetic reasons, providing an arc above the setscrew (in mm). HoleDiameter = 6; //knob_radius top_row = height - v_margin - title_font_size*2; working_width = width_mm - h_margin; cv_in = [first_col, fourth_row, 0]; triangle_out = [width_mm-h_margin-working_width/4, row_1, 0]; fm_in = [first_col, first_row, 0]; c_tune = [width_mm/2, top_row, 0]; left_rib_x = thickness * 1.2; right_rib_x = width_mm - h_margin; input_column = h_margin; working_height = height / 2 + hole_diameter + hole_margin*2; cutout_width = board_width - (side_margin * 2); cutout_height = board_height - (top_margin * 2); hole_horiz = (board_width - hole_hdist) / 2 + hole_diameter + hole_margin*2; cutout_width = board_width - (side_margin * 2); cutout_height = board_height - (top_margin * 2); hole_horiz = (board_width - hole_hdist) / 2 + (enable_stem ? Stem_height : 0) + knob_height - sphere_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); smoothing(); } external_direction_indicator(); } shaft_hole(); } set_screw_hole(); } arrow_indicator(); indentations(); } } Clean up code formatting; added a few more 'simple' Unseen Servant.

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