Additive manufacturing method of manufacturing a boat

Abstract

The invention relates to an additive manufacturing method of manufacturing a boat; the method comprising, for manufacturing at least a part of the boat; the steps of: a) building up the part from a plurality of interconnected layers; b) leaving apertures in pre-selected positions of at least a plurality of the layers, the apertures in consecutive layers lining up to create at least one continuous tube in the part; c) running a tendon through each continuous tube; d) applying a tension on each tendon; and e) fixing each tendon in its respective continuous tube under said tension. The invention also relates to a boat produced by such an additive manufacturing method; having a stack of layers and a cross-layer tube; the boat further including a tensioned tendon extending through each tube.