Well, the hole in the cook chamber starts out as a circle below centre line… then you push them together, keep leveling and straightening while trimming away where it touches. You end up with an odd shaped hole. The outter skin is easier. I make a mock-up of the tank as a CAD drawing and cut all the sheets to fit with a cnc plasma cutter.hogaboomer wrote: ↑April 16th, 2022, 9:59 pmThat's a great fitup, firebox to cook chamber!!! How did you do that? Impressive work!