Window variability correction in additive manufacturing
US12240164B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2021 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Mar 4, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y50/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of making an object on a bottom-up stereolithography apparatus is provided. The apparatus includes a light source, a drive assembly, and a controller operatively associated with the light source and the drive assembly, with the light source and/or the drive assembly having at least one adjustable parameter that is adjustable by the controller. The method includes installing a removable window cassette on the apparatus in a configuration through which the light source projects, the window cassette comprising an optically transparent member having a build surface on which an object can be produced, and with the optically transparent member having and at least one variable property therein; and then modifying the at least one adjustable parameter by the controller based on the at least one variable optical property of the window; and then producing the object on the build surface from a light-polymerizable liquid by bottom-up stereolithography.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.