“A method for the manufacture of a plastics product (1) and a plastics product (1), which plastics product (1) comprises a first (2) and a second (3) component that are both manufactured completely or partially from moulding plastics, and which first component (2) is manufactured by moulding in a mould, such as by injection moulding, and which second component (3) is made by a process in which it is built in a layer-by-layer fashion, such as by 3D-printing, and having a mounting surface (7); and wherein the first component (2) is ready-moulded and ejected from the mould prior to it being joined with the second component (3) to form the plastics product (1). By the first layer of material formed in the 3D-printing process of manufacturing the second component (3) being formed on a surface having the same shape as the mounting surface (7) of the first component (2), it is enabled to manufacture a product with a high degree of design individuality, while simultaneously parts of the product can be made with very fine tolerances.”
And for a fun twist on this story, a 3d printer made of Legos:
Source: http://3dprint.com/1383/lego-awarded-3d-printing-patents-may-allow-users-to-print-own-bricks/