Abstract: A modular system for use with X-Y peripherals is provided. The system includes a master controller operatively connected to one or more slave X-Y peripherals in a network. Different types of slave X-Y peripherals are accommodated by the system, e.g. sewing machines and engravers. Each slave X-Y peripheral has a unique address for independent communication with the master controller. The master controller tracks the functional relationship existing between it and each slave X-Y peripheral using state architecture. Servo control of a tool or head in an X-Y peripheral is also disclosed. The tool is movable in a Z dimension relative to a workpiece residing in an X-Y plane. Method and apparatus are also provided for positioning a carriage of an X-Y peripheral at a home or reference position in one or more dimensions.

Abstract: A method and apparatus are provided for operator-controlled stitching of letters on materials wherein the letters have common stitch parameters. The operator selects desired stitch parameters, such as letter height, letter width, and stitch density, and stores the parameters in memory. In using the stored stitch parameters, the operator recalls them using a keyboard and also selects letters which are to be stitched using the stored and recalled stitch parameters. The apparatus is able to apply or use the recalled stitch parameters in connection with the selected letters to stitch the letters. In addition, the operator is able to define a number of different stitch patterns having selected and stored letters which can later be recalled for stitching thereof.