Abstract: The invention relates to a method for manufacturing parts of acetate eyeglass frames from an acetate plate. The plate is designed with length and height dimensions defining a surface area that encompasses the perimeter boundary of the body of the frame part to be manufactured, and with a thickness the value of which is at least equal to the maximum transverse dimensions of the three-dimensional shape of the body of the frame part itself and extends evenly over the entire surface defined by the length and the height of the plate. The method also comprises the step of forming a cut within the surface dimensions of the plate along the perimeter boundary of the body of the eyeglass part to be manufactured, excepting a pair of portions of said boundary, thereby leaving said portions connected to the plate, and the step of forming the three-dimensional shape of the frame part body by removing material from the thickness of the plate.