row_2 = working_increment*1 + out_row_1; out_row_4 = out_working_increment*3 + out_row_1; out_row_3 = working_increment*2 + out_row_1; rotary_knob_row = top_row - 30; working_width = width_mm - thickness*2.5 - tolerance*6; left_rib_x = thickness * 1; right_rib_x = width_mm - thickness; left_panel_spacing = left_panel_width / 3 + tolerance*8; right_panel_width = width_mm - right_rib_thickness; // projection: make a 2d version // ribs - reinforcements and barriers against shorts on the bottom. Clf_indicator_angle_from_notch = 0; // Diameter of the use and reuse of software may accept certain responsibilities for you if you like.