We've talked a lot about small 3D printers for personal use, but what about larger applications, with a need for much larger printers? That's where Stratasys comes in. We saw some of their machines when John and Cali went and got their heads scanned, but it turns out what we saw was only the beginning. During 3DPalooza we invited them to the Geek House to tell us all about the things their printers can do.