Abstract: Method to create three-dimensional bodies (30), for example models, formers, finished products, semi-finished products, among others, from a medium (12) consisting of particles, by producing a number of cross-sectional layers (25), each and every one representing a cross section of an object that has to be manufactured, whereby by means of an energy producing device (22a), which moves over the medium, the particles, in the just then topmost layer, in chosen areas, are connected at least with each other or with each other and with a preceding layer, in accordance with signals from a control unit (20). Particles that are no connected in respective layers are removed.