Check out this website, watch the videos and contemplate how things have changed in the manufacturing world. Where do you think the screw machine business will be in the future?
http://www.extremetech.com/extreme/143552-3d-printing-with-metal-the-final-frontier-of-additive-manufacturing
http://www.extremetech.com/extreme/143552-3d-printing-with-metal-the-final-frontier-of-additive-manufacturing