Always with a project on the go, Jo is a full-time maker and writer. A shed full of CNC machines, lathes, 3D printers and more keeps Jo building. From PCBs to rowing boats to rockets, Jo tries wherever possible to integrate open source hardware and software into his projects. As such he is a keen Linux user, has authored a book on FreeCAD the open source 3D modeling software, and has published designs and tutorials across a wide range of makes. Based in the mountains of North Wales UK Jo enjoys walking and running and also helps teach a kids Kung Fu class.