One of my key areas of interest and activity for the past 5 years is 3D printing. I started with a basic Makerbot back in the day, then it turned into a significant career focus for me, first at Autodesk and then Fathom.
Check out the story of my personal 3D printing journey here:
http://www.xyzap3d.com/blog/what-ive-learned-in-5-years-of-3d-printing