Mineshaft

A little bit later than the lighthouse, I built a mineshaft. It goes all the way from 64 to -64, and has decorative walls, with a minecart track down the middle.

At the outside of the mineshaft, there is a processing station for ores. A blast super smelter with 11 blast furni. This can smelt two stacks of items in less than a minute, or 2.2 items/sec.