NASA Wrench May 26, 2018, 08:11:17 PM I'm not sure how many people here have tried this file yet but it should be on the list in my humble opinion.Space Station 3-D Printer Builds Ratchet Wrench To Complete First Phas | NASABarnacules Nerdgasm had a go at it....https://youtu.be/mvr9a4aZlmUAnd I even had a go on my Anet A8The file is here. Wrench | 3D Resources