Born 1952 in London. Engineer and mathematician, currently an academic at the University of Bath. Educated at Woodroffe School, Lyme Regis and Imperial College London. In 1977 he joined the Mathematics Department at the University of Bath. Shortly after that he received a doctorate from Imperial College London for research in friction-induced vibration. Whilst working in the Mathematics Department he invented (at the same time as David Watson) the algorithm for computing Voronoi diagrams that bears their names (the Bowyer–Watson algorithm). He is currently a senior lecturer in the Mechanical Engineering Department at the University of Bath and a director of RepRap Ltd. He invented the RepRap Project - an open-source self-replicating 3D printer.