Reply to "New Breakthrough in 3-D Printing"

It will never be economical for lionel to 3d print because of the volume. You can kick out pladtic parts from an injection mold 100 or 1000 times faster than 3d printing. And I learned autocad in high school, late 80's so not really new tech. It is expensive but not hard to learn, just takes practice, but consider the previous alternatives for making complex parts... buy a lathe and milling machine, spend potential thousands tooling, and accessories, and learn the trade of being a machinist. This is by far easier technology for the home modeler.