19 india_use = india_nom + india_slop;
20 middia_use = middia_nom - middia_slop;
22 echo("MIN WALL", (middia_use - india_use)/2);
25 polygon([[ india_use/2, -hbot ],
29 [ middia_use/2, htop ],
30 [ india_use/2, htop ]]);
34 rotate_extrude(convexity=5)