--- description: He was also born with small forearms title: Dog Runs With 3D Printed Prosthetic Legs image: https://static.time.com/v3/assets/bltea6093859af6183b/blt5f59a87752032646/69876f5c0b72e34d8c6dcada/3d-print-legs-dog.png?branch=production&width=1920&quality=75&auto=webp&crop=16:9 ---  * [Newsfeed](/tag/time-section-newsfeed/) ## Newsfeed Update your preferences in [Account Settings](/account/preferences/) Close # Watch a Dog With No Front Paws Learn to Run With 3D-Printed Legs  by [Olivia B. Waxman](/author/olivia-b-waxman/)  ## Olivia B. Waxman Update your preferences in [Account Settings](/account/preferences/) Close Staff Writer Dec 17, 2014 3:50 PM CUT   by [Olivia B. Waxman](/author/olivia-b-waxman/)  ## Olivia B. Waxman Update your preferences in [Account Settings](/account/preferences/) Close Staff Writer Dec 17, 2014 3:50 PM CUT In a heartwarming [promotion](https://www.youtube.com/watch?v=uRmoowIN8aY "undefined") for 3D systems, a 3D printing company, a dog named Derby tries out a pair of 3D-printed prosthetic legs. The dog has “a congenital deformity characterized by small forearms and no front paws,” according to a [statement](http://www.3dsystems.com/press-releases/3d-systems-enables-derby-dog-run-3d-printed-custom-prosthetics "undefined"). Before Derby got his new legs, he could only move around on soft surfaces indoors, so the new legs are supposed to help him get around on hard surfaces like sidewalks without injuring himself. His owner Dom Portanova says, “He runs faster than the both of us.” As CEO of 3D Systems Avi Reichental [summed up 3D printing’s influence](http://time.com/3594971/the-25-best-inventions-of-2014/ "undefined") to TIME earlier this year, “This is one of those technologies that literally touches everything we do.” **LIST:** [25 Best Inventions of 2014](http://time.com/3594971/the-25-best-inventions-of-2014/ "undefined") ### See Photos of Europe's Largest 3D Scanner  Martin Benes from 3D gang company demonstrates one of the stages of 3D scanning on August 26, 2014 in Prague, Czech Republic. The 3D scanner is the largest in continental Europe, with 115 sensors, and is designed to scan objects, people and animals. Matej Divizna—Getty Images  Martin Benes from 3D gang company is seen through the viewfinder as he demonstrates one of the stages of 3D scanning on August 26, 2014 in Prague, Czech Republic. Matej Divizna—Getty Images  Martin Benes works with a 3D model on the computer on August 26, 2014 in Prague, Czech Republic. Matej Divizna—Getty Images  Martin Benes works with a 3D model of himself on the computer on August 26, 2014 in Prague, Czech Republic. Matej Divizna—Getty Images  Martin Benes from 3D gang company holds a printed figurine of himself on August 26, 2014 in Prague, Czech Republic. Matej Divizna—Getty Images  Martin Benes from 3D gang company demonstrates one of the stages of 3D scanning on August 26, 2014 in Prague, Czech Republic. Matej Divizna—Getty Images  Printed figurines stand on display at the 3D gang company on August 26, 2014 in Prague, Czech Republic. Matej Divizna—Getty Images ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3637523/dog-3d-printed-prosthetic-legs/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3637523/dog-3d-printed-prosthetic-legs/"},"headline":"Watch a Dog With No Front Paws Learn to Run With 3D-Printed Legs","datePublished":"2014-12-17T15:50:07.000Z","dateModified":"2026-05-11T04:48:14.481Z","description":"He was also born with small forearms","url":"https://time.com/3637523/dog-3d-printed-prosthetic-legs/","keywords":["Newsfeed","animals"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt5f59a87752032646/69876f5c0b72e34d8c6dcada/3d-print-legs-dog.png?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Olivia B. 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