Hey, it is not news. So I put it here in off topic.
A number of firms use 3D printing in WAYS you may find very starange.

GE:
General Electric made big investments in 3D printing in their quest to produce more than 85,000 fuel nozzles for the new Leap jet engines. The printers can make the nozzles in one metal piece and the finished product is stronger and lighter than the ones made in the traditional assembly line...

Boeing:
The airline company was one of the early adopters of 3D printing technology, and has made more than 20,000 3D printed parts for 10 different military and commercial planes. The 787 Dreamliner has 30 3D printed parts, including air ducts and hinges, which is a record for the industry....

Ford:
Ford made engine covers for the 2015 Ford Mustang with 3D printers.
The auto company has been using 3D printing technology since the 1980s and recently printed its 500,000th PART with a 3D printer, which was an engine cover ...

Nike:
Nike REPORTED 13% growth for its latest quarter. CEO Mark Parker has previously stated that 3D printing technology has been a big boost for the company recently. Nike made 3D printed CLEATS for the 2014 Super Bowl.

Hershey's:



Read Moore:

www.techrepublic.com/article/3d-printing-10-companies-using-it-in-ground-breaking-waysThe biggest thing with these printers are that they are not very fast at creating products. At least the ones I have seen are slow.

I suppose if you had 1000 of these running, you could make 1000 parts in a given period of time that it takes to make 1 partHershey's looks to me to be the most promising...