A method of making a medical or dental part may comprise creating a first digital model, manufacturing an initial embodiment of the part based on the first digital model using a layered manufacturing process, creating a second digital model of the initial embodiment of the part, determining the difference between the second digital model and the first digital model, and machining the initial embodiment of the part to create a final embodiment of the part by removing an amount of material substantially representative of the difference. A computer readable medium for performing such method is also disclosed.