Patent ID: 8459760
Filing Date: 2013-06-11
Classification: B41F,B41J,B41M

Abstract:
1. A method for printing on an article having a non-planar surface, the method comprising: obtaining coordinates or a geometry for a non-planar surface of an article; determining a tangent orientation for a print head in three dimensions; and using the tangent orientation and positioning the print head relative to the non-planar surface of the article, wherein the positioning of the print head involves a sabre angle, a cross process angle, and a process angle; and the sabre angle is used to calculate the cross process angle and the process angle; and based on the desired print resolution, sabre angle, and print dimensions, points are selected along or about a sabre line; and a minimum or specified number of points are used to refine tangents at one or more points on the non-planar surface.