General Electric claims that 10% of all their manufacturing is done via 3D Printing. They also claim that by 2023 about 20-25% of it will be via 3D Printing, and by 2033, over half of their manufacturing will be done with 3D Printers. Pretty impressive considering how large a company they are. There are 2 segments of the market, corporate manufacturers, and consumers.

More Details:
http://news.investors.com/technology...ufacturing.htm

In a separate article, GE also predicts that by 2025, we will be printing out treats for our dogs:
http://betabeat.com/2013/10/ge-fanta...nacks-by-2025/