Jo Hinchliffe (AKA Concretedog) is a constant tinkerer and is passionate about all things DIY space. He loves designing and scratch-building both model and high-power rockets, and releases the designs and components as open-source. He also has a shed full of lathes and milling machines and CNC kit! Ben Everard enjoys working at the intersection of art and technology. He has a particular interest in light and his primary reason for making PCBs is to find more ways of adding LEDs to things. He lives in a house in Bristol with his wife, two daughters and too many animals.