Method for calibrating an apparatus for producing an object by means of additive manufacturing, and apparatus for the method
US11718021B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2019 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Oct 6, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for calibrating an apparatus for producing an object by means of additive manufacturing including a process chamber for receiving a bath of material which can be solidified by exposure to electromagnetic radiation, a support for positioning the object in relation to the surface level of the bath of material, and a solidifying device for solidifying a selective layer-part of the material on the surface level by means of electromagnetic radiation. A method including providing, on or near the support, a calibration marker that faces the solidifying device, and providing a calibration system with an imaging unit that can be directed to the support. The method further includes a determining step of the position of the calibration marker, making a solidifying marker that relates to the calibration marker and determining a measure for the position thereof, and determining, with the calibration system, at least a correction vector based on the positions of both the calibration marker and the solidifying marker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.