The Book of Wratchet rev1
This book is packed full of details, specifications, pictures, and data about building the Wratchet chassis. It's not a step by step manual on how to build the chassis. But it's a guide that will really help in building this chassis, or really any chassis similar to it. I'm charging for this because it took me a couple months to put it together and write it. This is a digital download. After you purchase it you download right to your computer.