This machine has two parts to it. The first part converts logs and brass, copper, or andesite into casings. The second part converts lava into obsidian and then crushes the obsidian into powdered obsidian which is then placed on the conveyor and converted into sturdy sheets. The sturdy sheets are placed into the mechanical hand that presses against the brass casings that come out of the first part of the machine creating train casings. One quality of life thing I added to this machine is that you don't have to worry about overflow. There is a series of three threshold switches scattered around the machine that shuts off the production of certain parts of the machine to prevent it from making too many items.