Methods and systems for determining viscosity of photo-curing resin for vat photopolymerization printer
US11169067B2 · kind B2 · utility
3Cited by
1References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2020 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Nov 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2011/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems for forming 3D articles by vat photopolymerization processes in which resin viscosities are determined both prior to the commencement of the build process and, optionally, during the build process by measuring the torque required to raise and lower a build plate within the resin in the vat. The resin may be heated, and its viscosity thereby altered, by heating the resin in the vat using a light engine employed for fabricating the 3D articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.