The present disclosure sets forth a system and method for forming sheets of material, such as titanium mesh or plates, for surgical applications prior to surgery. The disclosed solutions provide this capability without incurring expense from use of PEEK or PEKK by manufacturing contoured plates based on a shape of an anatomical structure in a 3D image, such as a pre-defect MRI. The contoured plates are used to stamp the titanium mesh, plate, or other sheet of material into the shape of the bone prior to the defect. In some aspects, the mesh or other material layer can also be trimmed prior to surgery using, for example, a reproduction of the anatomical structure manufactured from a post-defect MRI of the same anatomical structure.