Closed loop print process adjustment based on real time feedback
US11465340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2020 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Oct 21, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y50/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In some embodiments, a photoreactive 3D printing system and methods comprise providing a system with a resin tub comprising a membrane, wherein the membrane rests on a physical tension element such that increasing downward force on the resin tub induces increasing tension on the membrane. The system also comprises a plurality of sensors comprising a resin bulk temperature sensor, and a print recipe comprising information for each layer in a 3D printed part to be built on the print platform. In some embodiments, a resin bulk temperature is measured, and the information in the print recipe, including information related to the downward force on the resin tub, is updated during a printing run based on the resin bulk temperature measurement. In some embodiments, the print recipe can be updated during a printing run based on input from at least two sensors of the plurality of sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.