Three dimensional printing system with improved surface properties

US11731348B2 · kind B2 · utility

Assignee

• LAYERWISE NV · BE

Inventors

• Ray Nachiketa · Leuven, BE
• Paggi Umberto · Leuven, BE

Key dates

• Filing date: Jun 29, 2020
• Grant date: Aug 22, 2023
• Expiry date: Dec 24, 2041

Classification

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

Abstract

A system for manufacturing a three-dimensional article includes a controller. The controller is configured to: (a) receive an input file defining a solid body; (b) slice the solid body into horizontal slices; (c) analyze the sliced body to identify downward-facing slice regions, a downward-facing slice region intersects with a downward-facing surface of the solid body; (d) for the individual slices, define a contour region to span a Boolean union between a default lateral peripheral contour and the downward-facing slice region; and (e) for the individual slices, define a hatch region that spans a Boolean difference between the slice and the contour region.