Story

I wish articles like this had more details. Are Seimens and GE buying 3d printing machines from someone else, or using their own? What metals are they using for the 3d printing? How does the strength of the product compare to alternate manufacturing methods? That being an industry publication I'm sure the people reading it would be able to handle the details. So, does anyone here know the nitty-gritty or links to places with more details of metal based 3d printing?

Cheers,
-WW