US 11,673,198 B2
System and method for reducing drop placement errors at perimeter features on an object in a three-dimensional (3D) object printer
Jack G. Elliot, Penfield, NY (US); Rachel L. Tanchak, Rochester, NY (US); Derek A. Bryl, Churchville, NY (US); Piotr Sokolowski, Webster, NY (US); Erwin Ruiz, Rochester, NY (US); David A. Mantell, Rochester, NY (US); Brendan McNamara, W. Henrietta, NY (US); Peter M. Gulvin, Webster, NY (US); and Christopher T. Chungbin, Rochester, NY (US)
Assigned to Xerox Corporation, Norwalk, CT (US)
Filed by Xerox Corporation, Norwalk, CT (US)
Filed on Jan. 30, 2021, as Appl. No. 17/163,368.
Prior Publication US 2022/0241866 A1, Aug. 4, 2022
Int. Cl. B22F 10/85 (2021.01); B33Y 10/00 (2015.01); B22F 10/22 (2021.01); B33Y 50/02 (2015.01); B33Y 30/00 (2015.01); B22F 12/53 (2021.01)
CPC B22F 10/85 (2021.01) [B22F 10/22 (2021.01); B22F 12/53 (2021.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12)] 13 Claims
OG exemplary drawing
 
1. A material drop ejecting three-dimensional (3D) object printer comprising:
an ejector having at least one nozzle that is configured to eject drops of a material;
a platform positioned opposite the ejector;
at least one actuator operatively connected to at least one of the platform and the at least one ejector, the at least one actuator being configured to move the at least one of the platform and the at least one ejector relative to one another; and
a controller operatively connected to the ejector and the at least one actuator, the controller being configured to:
identify a feature to be formed in an object layer of an object to be formed on a platform using an object data model of the object to be formed;
operate the ejector to eject drops of a material while operating the at least one actuator to move the ejector and the platform on which the object is being formed move relative to one another to form a first edge of the feature;
operate the at least one actuator to move the ejector and the platform relative to one another so the ejector moves away from an end of the first edge;
operate the at least one actuator to move the ejector and the platform relative to one another to return the ejector to the end of the first edge; and
operate the ejector to eject drops of the material while operating the at least one actuator to move the ejector and the platform relative to one another to form a second edge of the feature, the first edge and the second edge forming at least a portion of a perimeter of the feature.