Presented are systems and methods for creating a set of signatures including acquiring a data set and converting the data set into a plurality of data matrices. An operator first enters the manual operational mode and manually sets the height of the blade. The cup support assembly is connected at the proximal end of the clamp assembly, and comprises a body portion and a pair of arcuate cup-encircling arms having respective spaced-apart free ends. A device for protecting the transformer is further provided. The electric field has a field distribution that creates a stronger field gradient at a region proximate to the tips than at other portions of the substrate. This eliminates the need to reset the workpiece between the machining of the two sets of teeth, thereby shortening the overall machining time substantially, and allowing the avoidance of accuracy losses due to the resetting of the workpiece.