An Insanely Cute Dog Runs for the First Time Thanks to 3D Printed Legs. Seriously. By Notable Life By Notable LifeView Author|March 19, 2015|LifeView Life The future is here – and it's brought to you by 3D printing and an insanely cute puppy. Derby the dog was born with underdeveloped front limbs, and while he was otherwise a perfectly healthy dog, his condition almost led to... View this article.