Here's some exciting news: The U.S. Department of Energy's Oak Ridge National Laboratory is currently working on a 3D printer "that is 200 to 500 times faster and capable of printing polymer components 10 times larger than today's common additive machines—in sizes greater than one cubic meter." To do it they're partnering with Cincinnati Inc., an Ohio-based company that produces manufacturing machines. Details are sketchy, but it seems the Oak Ridge boys are adapting a gantry-based Cincinnati laser cutter (above) for the prototype, so we're assuming it'll be SLS rather than FDM.
The move is a welcome one for American jobs, and points the way towards a possible return of U.S. manufacturing might. Said Cincinnati CEO Andrew Jamison in a press statement, "As one of the oldest U.S. machine tool manufacturers, with continuous operation since 1898, we view this exciting opportunity as starting a new chapter in our history of serving U.S. manufacturing. Out of this developmental partnership with ORNL, CINCINNATI intends to lead the world in big area additive manufacturing machinery for both prototyping and production." It is not clear whether he was shouting the word "CINCINNATI" or whether they just printed it in all caps for that one paragraph.
The Oak Ridge Boys could not be reached for comment, and when pressed for a quote, their uncooperative manager hung up on me.