lid_inner_kink = [thinbox_len, thinbox_len*2];
-lid_inner_w = patbox_side + lid_side_slop * 2;
+lid_inner_w_nom = patbox_side;
+lid_inner_w = lid_inner_w_nom + lid_side_slop * 2;
lid_seatline_w = (lid_inner_w - lid_max_switches_w)/2 - lid_switches_y_slop;