We've talked about the 3D Printability project before - it's an Autodesk Research partnership with CBM Canada and the Semaphore Lab at the University of Toronto to bring down the cost and time required to develop lower leg prosthetics.
The team has a great video outlining the challenge and how they're rising to meet it!
$100 Million 3D Printing Investment Fund Plus Meshmixer API and Scripting
Surgical Training and Planning with Meshmixer