Abstract: The invention relates to a method for computationally designing a number of re-usable two-pieced molds for the reproduction of an object, wherein each mold is fillable with filling material, in particular resin, to form the object or a part of the object to be reproduced, wherein each mold consists of rigid material.

Abstract: Methods and apparatus for designing a skull prosthesis are disclosed. In one arrangement, imaging data from a medical imaging process is received. The imaging data represents the shape of at least a portion of a skull. The imaging data is used to display on a display device a first virtual representation of at least a portion of the skull. User input defining a cutting line in the first virtual representation is received. A surgical operation of cutting through the skull along at least a portion of the defined cutting line to at least partially disconnect a target portion of the skull from the rest of skull is simulated. Output data is provided based on the simulation. The output data represents a simulated shape of at least a portion of the skull with the target portion at least partially disconnected from the rest of the skull, thereby defining the shape of an implantation site for a skull prosthesis to be manufactured.

Abstract: The invention relates to a method for computationally designing a number of re-usable two-pieced molds for the reproduction of an object, wherein each mold is fillable with filling material, in particular resin, to form the object or a part of the object to be reproduced, wherein each mold consists of rigid material.