Abstract: According to one example, a CNC machine tool system may perform error compensation for improving the accuracy of the geometry (or form) of a machined workpiece to, for example, better than 2 micrometers. To do so, a first machined workpiece may be created using the CNC machine tool system. The CNC machine tool system may create the machined workpiece by jig grinding. Following the creation of the first machined workpiece, metrology of the workpiece error may then be performed on the machined workpiece. The metrology of the workpiece error may be used to create a corrected toolpath trajectory for re-machining. This corrected toolpath trajectory may then be utilized by the CNC machine tool system to machine a second machined workpiece having a geometry (or form) with an accuracy of, for example, better than 2 micrometers.

Abstract: According to one example, a molding apparatus may be utilized to mold one or more glass elements by heating of one or more glass materials and pressing the one or more glass materials between an upper mold and a lower mold. The molding apparatus includes a radiant heating module comprising a plurality of radiant heating elements, an upper resistive heating module comprising a first plurality of independently controlled resistive heating elements, and a lower resistive heating module comprising a second plurality of independently controlled resistive heating elements.

Abstract: According to one example, a hydrostatic bearing includes a carriage, and a guide rail that, when combined with the carriage, provides for linear motion of the carriage with respect to the guide rail. The hydrostatic bearing is configured to transfer forces between the carriage and the guide rail without mechanical contact between the carriage and the guide rail by supplying pressurized, incompressible fluid to bearing pockets in the carriage. Each of the bearing pockets is enclosed by a bearing land of a bearing pad, and the bearing pad comprises the general shape of a parallelogram, a trapezoid, an arrow, or any other shape where the edges are generally not orthogonal to the direction of motion.

Abstract: According to one example, a CNC machine tool system may perform error compensation for improving the accuracy of the geometry (or form) of a machined workpiece to, for example, better than 2 micrometers. To do so, a first machined workpiece may be created using the CNC machine tool system. The CNC machine tool system may create the machined workpiece by jig grinding. Following the creation of the first machined workpiece, metrology of the workpiece error may then be performed on the machined workpiece. The metrology of the workpiece error may be used to create a corrected toolpath trajectory for re-machining. This corrected toolpath trajectory may then be utilized by the CNC machine tool system to machine a second machined workpiece having a geometry (or form) with an accuracy of, for example, better than 2 micrometers.