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by Jan Šístek
Doctors in Chennai, India are working on 3D printing transplantable ears. They've recently been successful in growing ear cartilage in a culture flask and proving it continues to grow once implanted in rabbits.
The Seattle-based company iro3D is developing a desktop metal 3D printer that will cost just $5,000. The printer is reportedly capable of producing strong, high carbon steel objects, and was recently debuted on Joel Telling's "3D Printing Nerd" YouTube channel.