Three-dimensional printing apparatus
US9415547B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 3, 2014 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Apr 23, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y50/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A three-dimensional printing apparatus is provided. The three-dimensional printing apparatus includes a tank, a movable platform, a light source, a detection module, and a control unit. The tank is filled with a liquid forming material, and the movable platform is movably disposed above the tank. The light source is disposed below the tank and configured to project light on the liquid forming material so as to form a three-dimensional object layer by layer on the movable platform. The detection module is disposed above the tank and includes a signal emitter and a signal receiver. The signal emitter is configured to emit a detection signal. The control unit activates an error-detection mechanism and controls the movable platform to move toward the detection module. The control unit determines whether the three-dimensional object is abnormal based on whether the detection signal is detected by the signal receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.