Scottish scientists are out to change that, with a mass-production-capable soft bot that is 3D-printed in a single piece which then walks off of the print bed. Before we go any further, this isn't the first time we've heard about a soft robot that was printed in one piece. That robot was powered not by a motor but by compressed air, which sequentially moves its legs forward. The new quadruped robot, designed by scientists at The University of Edinburgh, is likewise air-driven. What's more, whereas the San Diego robot was made using a US$1,000 printer, the Edinburgh bot is made by a ~$500 open-source platform called the Flex Printer, which is constructed from off-the-shelf components.