Patent attributes
A method and system for milling or engraving a workpiece provides improved throughput by varying one or both of a track speed or a rotational rate of a rotary cutting tool as the cutting tool cuts along a track. Multiple indications of material hardness are determined at a surface of the workpiece, movement of the cutting tool along a tool track is programmatically controlled to remove material from the workpiece, and one or both of a rotational rate of the tool or a track speed of the tool is adjusted along the tool track in conformity with the indications of material hardness, so that the rotational rate of the tool and/or the track speed is reduced at locations with harder material and increased at locations with softer material along the tool track.
