METHOD AND APPARATUS FOR CORRECTIVELY GUIDING A CUTTING DEVICE ON A PREDETERMINED PATH ALONG A SHEET MATERIAL

A method and apparatus for correctively guiding an item on a desired path along a material is provided wherein a guide path matching a desired path for an item to be guided along a material and a plurality of templates containing images of the material are inputted into a computer. The item is guided along the material in a path following the inputted guide path, and a need for correction of the actual path of the item along the material is checked and, where necessary, correction is made at predetermined, inputted intervals. Self-correction of the path the item follows along material is accomplished by visual recognition of templates containing images of the material matching previously inputted templates.