In this video, Motley Fool industrials analyst Blake Bos goes through the headlines to discuss the most important news for 3-D printing investors today. He takes a look at a Coca Cola promotion in Israel, discusses Elon Musk's new tools for designing rocket parts, and highlights one print head that may just change the entire 3-D printing industry. Blake then gives his key takeaways for what these stories mean for individual companies, and the industry as a whole.