Minecraft Xbox 360 is a great game for building and playing with friends. If you want to build something really cool, you can build a Tnt Cannon! This cannon is made up of three parts: the barrel, the tube, and the firing mechanism. To make the barrel, start by cutting a block of wood that is about two blocks wide and one block high. Then, use a pickaxe to chop off one end of the block so that it is square. Next, use a Crafting Table to craft an Iron Ingot and place it in the middle of the block. Finally, use a Hammer to hit it until it is shaped like a barrel. To make the tube, start by cutting another block of wood that is about two blocks wide and one block high. Then, use a Pickaxe to chop off one end of the block so that it is square. Next, use a Crafting Table to craft an Iron Ingot and place it in the middle of the block. Finally, use a Hammer to hit it until it is shaped like a tube. To make the firing mechanism, start by placing an Iron Ingot in front of where you want your cannon to fire from (the front). Then, place another Iron Ingot on top of that so that they are touching each other (see picture below). Finally, place another Iron Ingot on top of that so that they are touching each other (see picture below). Now hit your hammer on top of all three ingots until they are shaped like buttons (see picture below). ..