Cross stitching control by QMM3D

US12017300B2 · kind B2 · utility

Assignee

• Concept Laser, GmbH · DE

Inventors

• Juergen Werner · Bruckmühl, DE
• Dominic Graf · Weitramsdorf, DE
• Jonathan William Ortner · Sharonville, US
• Lisa Pastuschka · Coburg, DE
• Tobias Bokkes · Untersiemau, DE

Key dates

• Filing date: Mar 12, 2020
• Grant date: Jun 25, 2024
• Expiry date: Jun 21, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An apparatus for additively manufacturing three-dimensional objects may include at least one calibration unit, at least one irradiation device, and a determination device. The least one calibration unit may include at least one calibration region arranged in the beam guiding plane, and the at least one calibration region may include a plurality of sub-regions differing in respect of at least one optical property. The at least one irradiation device may be configured to guide a plurality of energy beams across the at least one calibration region comprising the plurality of sub-regions, and a plurality of calibration signals may be generated by the plurality of sub-regions being irradiated with the plurality of energy beams. The determination device may be configured to determine the plurality of calibration signals and to determine a calibration status of the irradiation device based at least in part on the determined plurality of calibration signals.