System and method for three-dimensional printing
US10493744B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2017 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Feb 20, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C64/264
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for preparing a three-dimensional object, in layers is described. The method may include forming a layer on a transparent substrate by selectively depositing liquid material on a transparent substrate based on image data of a cross section of the layer, the image data including at least a body region, wherein the material extends on the transparent tray outside a contour defining the body region; contacting the layer to a previously solidified layer attached to an elevated fabrication platform; and selectively curing the liquid material by irradiating the layer with curing radiation through the transparent substrate according to high-resolution image data of the cross section such that the material that extends outside the contour remains uncured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.