I'm not familiar with PolyJet, but I saw products made by FDM at this week's Medical Design & Manufacturing Show in Chicago, and they're impressive. We'll have some photos of those products on the web site next week.
Transfers the control of a large number of motion axes from one numerical control kernel to another within a CNC system, using multiple NCKs, and enables implement control schemes for virtually any type of machine tool.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.