Beam lattice data in additive manufacturing - WO2021011049A1

Abstract

In an example a method includes receiving, at processing circuitry, beam lattice data modelling at least part of a three-dimensional object to be generated using additive manufacturing as a beam lattice. A volumetric data model may be determined from the beam lattice data. Determining the volumetric data model may comprise dividing a volume containing the beam lattice data into sub-volumes and categorising the sub- volumes into (I) interior sub-volumes, which are wholly within a beam of the beam lattice; (ii) exterior sub-volumes which are wholly outside the beams of the beam lattice; and (ii) boundary sub-volumes which partially coincide with a beam of the beam lattice. The method may further comprise subdividing boundary sub-volumes and categorising the subdivided sub-volumes until a threshold volume size of boundary sub-volume is reached.