Near the end of the article, there is a section called “Tempe Firm a 3-D Leader” where they talk a lot about PADT, what we do here, and the history of 3D Printing. Always great to get this technology and our company recognized.
http://www.azcentral.com/story/money/business/tech/2014/05/10/3d-printing-touching-layer/8956075/