Very powerful farm, with this farm you will never be short of iron and you will be able to build long train routes. it is protected with a system of filter to prevent the breakdown of the machine in case of a random cobblestone spawn. Another detail is that is super fast, it doesn't use mechanical drills but instead it uses a lot of fans, you will need a steam engine with a power of at least 28000su. if you use it in survival you have to place the lava and water manually.