MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
I was more thinking of using the arduino shield instead of the Adafruit - and just connect it using wires... Seems like a more simple solution.
Face tracking - I assume this can/is achieved by using OpenCV or similar on the Raspberry ?