That looks neat! But how does it all work? What's the self-replicating mystery fuel you're using there?
EDIT: Too slow!
But honestly, magma crucibles aren't really a self-replicating, no-external-fuel system. At some point you need to supply netherrack, so netherrack becomes your fuel. It's an extremely plentiful and easy to acquire fuel, but nevertheless it must be gathered and supplied in some way.
EDIT: Too slow!
But honestly, magma crucibles aren't really a self-replicating, no-external-fuel system. At some point you need to supply netherrack, so netherrack becomes your fuel. It's an extremely plentiful and easy to acquire fuel, but nevertheless it must be gathered and supplied in some way.