Stratasys has announced the winners of their twelfth annual Extreme Redesign 3D Printing Challenge, and the results are impressive: winning entries include underwater hotels, underwater robots, Braille keyboards, swappable smartphone camera lenses and more. Interested students can already start preparing for next year's competition, which will officially open in September. Read more at 3DPrint.com: https://3dprint.com/131868/extreme-redesign-winners/