Duet3D's core hardware and firmware are all open-source.Duet3D Limited in 2019, following working part time on the successful Duet3D joint venture from 2014. Prior to this he held a number of engineering leadership roles. Tony has a MEng in electronic engineering from Warwick University, a MA from King's College London, and is a Chartered Engineer through the IET.Duet3D Limited with Tony. Fascinated by electronics, computers and software development from an early age, he was awarded a BA in Natural Sciences by Cambridge University, followed by a PhD. As well, David is a Chartered Engineer through the British Computer Society. David currently serves on the MISRA C++ working group and has previously contributed to the MISRA C 2004 and MISRA C++ standards.Duet3D, overseeing multiple projects and driving business change. Before joining the company, Sarah spent 15 years specialising in commercial property law as a Chartered Legal Executive and is a Fellow of the Institute of Chartered Legal Executives. In her spare time, Sarah is part of the nationally and internationally acclaimed women's choir, Peterborough Voices.Duet3D, responsible for financial management, procurement and supply chain assurance. Previously a partner in a Civil Engineering consultancy firm, Roland has an BSc(Eng) Hons from the University of Cape Town and an MSc from Imperial College, London. He is a Chartered Engineer through membership of the Institution of Civil Engineers.Duet3D since the start of the Joint Venture and is now a lead software developer. In addition to several preceding open-source software projects, he has been involved in Software and Firmware development since the start of his studies in computational engineering at HTW Berlin in 2014.