This is another awesome 3D printing story. 14 Month old Roland had major heart issues. Surgeons turned to a 3D printed model of his heart to figure out how to fix the child's problem.

http://3dprint.com/1219/3d-printing-...art-save-life/

The surgeons used a Makerbot Replicator 2X to print out a 3 piece model of the heart and ultimately save Roland's life.