This machine was originally built to manufacture molds for fiberglass wind turbines that are over 50 meters in length. Because building a 50-meter-long CNC machine wasn’t overkill enough, engineers at EEW Maschinenbau settled on a design that is 151 meters long, or almost 500 feet. Of course the HSM-Modal, as this machine is called, can only make parts 151 meters long in the x dimension. The y-axis has a span of 9 meters while the z-axis goes from 0 to 4.25 meters off the ground. Large enough to build cars, ship hulls, and even houses out of a single block of material.
There’s a bunch of technical documentation on the EEW website and a PDF going over the specs. Not only can this gigantic mill machine molds much like an embiggened desktop CNC router, this thing can do drilling, sawing, grinding, plasma cutting, and even extrusion just like a Makerbot.
If you’ve got the cash, EEW Maschinenbau will build you one of these gigantic machines. We can’t imagine how much that would cost, though.