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4.2; /* [External Indicator (optional)] */ // // // directional indicators // // knob_radius_top = 10; label_font = 6; //knob_radius top_row = height - v_margin; working_increment = working_height / (8+tolerance/5); // generally-useful spacing amount for vertical columns of stuff col_left = thickness * 2; right_rib_x = width_mm - h_margin; left_rib_x = hole_dist_side + thickness; working_height = height - hole_dist_top); cylinder(r=hole_r, h=thickness*2); echo("Putting a hole with radius: ", hole_r , " at ", hole_dist_side, height - v_margin; working_increment = working_height / 5; out_row_2 = working_increment*1.