Geometric pattern generation by sewing machine

The authors propose a method for geometric pattern generation by using a sewing machine. Sewing machine equipment are mainly composed of mathematical models which may be constructed by computer programs or switching and other electric circuits. These models are called commutative linear representation systems and this method is a very different graphic generation scheme. Geometric pattern generation is a trial for a sort of graphic art, performed by using sewing machines with computers. Being executed in linear operations, this generation method may be very suitable for computer algorithms or electric circuits. The effectiveness of this method is illustrated with the use of several examples.