Three-Dimensional Printing of Large Objects with High Resolution by Dynamic Projection Scanning Lithography
Due to the development of printing materials, light-cured 3D printing is playing an increasingly important role in industrial and consumer markets for prototype manufacturing and conceptual design due to its advantages in high-precision and high-surface finish. Despite its widespread use, it is stil...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/14/9/1700 |
| _version_ | 1797578836169195520 |
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| author | Chunbo Lin Wenbin Xu Bochao Liu He Wang Haiping Xing Qiang Sun Jia Xu |
| author_facet | Chunbo Lin Wenbin Xu Bochao Liu He Wang Haiping Xing Qiang Sun Jia Xu |
| author_sort | Chunbo Lin |
| collection | DOAJ |
| description | Due to the development of printing materials, light-cured 3D printing is playing an increasingly important role in industrial and consumer markets for prototype manufacturing and conceptual design due to its advantages in high-precision and high-surface finish. Despite its widespread use, it is still difficult to achieve the 3D printing requirements of large volume, high resolution, and high speed. Currently, traditional light-cured 3D printing technologies based on stereolithography, such as regular DLP and SLA, can no longer meet the requirements of the processing size and processing rate. This paper introduces a dynamic projection of 3D printing technology utilizing a digital micro-mirror device (DMD). By projecting the ultraviolet light pattern in the form of “animation”, the printing resin is continuously cured in the exposure process to form the required three-dimensional structure. To print large-size objects, the three-dimensional model is sliced into high-resolution sectional images, and each layer of the sectional image is further divided into sub-regional images. These images are dynamically exposed to the light-curing material and are synchronized with the scanning motion of the projection lens to form a static exposure pattern in the construction area. Combined with the digital super-resolution, this system can achieve the layering and fine printing of large-size objects up to 400 × 400 × 200 mm, with a minimum feature size of 45 μm. This technology can achieve large-size, high-precision structural printing in industrial fields such as automobiles and aviation, promoting structural design, performance verification, product pre-production, and final part processing. Its printing speed and material bending characteristics are superior to existing DLP light-curing 3D printing methods. |
| first_indexed | 2024-03-10T22:27:24Z |
| format | Article |
| id | doaj.art-c108bf53afa5475c93bb4119945dce29 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-10T22:27:24Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-c108bf53afa5475c93bb4119945dce292023-11-19T11:59:26ZengMDPI AGMicromachines2072-666X2023-08-01149170010.3390/mi14091700Three-Dimensional Printing of Large Objects with High Resolution by Dynamic Projection Scanning LithographyChunbo Lin0Wenbin Xu1Bochao Liu2He Wang3Haiping Xing4Qiang Sun5Jia Xu6Research and Development Center of Precision Instruments and Equipment, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaResearch and Development Center of Precision Instruments and Equipment, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaResearch and Development Center of Precision Instruments and Equipment, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaResearch and Development Center of Precision Instruments and Equipment, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaState Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, ChinaResearch and Development Center of Precision Instruments and Equipment, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaResearch and Development Center of Precision Instruments and Equipment, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaDue to the development of printing materials, light-cured 3D printing is playing an increasingly important role in industrial and consumer markets for prototype manufacturing and conceptual design due to its advantages in high-precision and high-surface finish. Despite its widespread use, it is still difficult to achieve the 3D printing requirements of large volume, high resolution, and high speed. Currently, traditional light-cured 3D printing technologies based on stereolithography, such as regular DLP and SLA, can no longer meet the requirements of the processing size and processing rate. This paper introduces a dynamic projection of 3D printing technology utilizing a digital micro-mirror device (DMD). By projecting the ultraviolet light pattern in the form of “animation”, the printing resin is continuously cured in the exposure process to form the required three-dimensional structure. To print large-size objects, the three-dimensional model is sliced into high-resolution sectional images, and each layer of the sectional image is further divided into sub-regional images. These images are dynamically exposed to the light-curing material and are synchronized with the scanning motion of the projection lens to form a static exposure pattern in the construction area. Combined with the digital super-resolution, this system can achieve the layering and fine printing of large-size objects up to 400 × 400 × 200 mm, with a minimum feature size of 45 μm. This technology can achieve large-size, high-precision structural printing in industrial fields such as automobiles and aviation, promoting structural design, performance verification, product pre-production, and final part processing. Its printing speed and material bending characteristics are superior to existing DLP light-curing 3D printing methods.https://www.mdpi.com/2072-666X/14/9/17003D printingadditive manufacturingDLPdigital super resolution |
| spellingShingle | Chunbo Lin Wenbin Xu Bochao Liu He Wang Haiping Xing Qiang Sun Jia Xu Three-Dimensional Printing of Large Objects with High Resolution by Dynamic Projection Scanning Lithography Micromachines 3D printing additive manufacturing DLP digital super resolution |
| title | Three-Dimensional Printing of Large Objects with High Resolution by Dynamic Projection Scanning Lithography |
| title_full | Three-Dimensional Printing of Large Objects with High Resolution by Dynamic Projection Scanning Lithography |
| title_fullStr | Three-Dimensional Printing of Large Objects with High Resolution by Dynamic Projection Scanning Lithography |
| title_full_unstemmed | Three-Dimensional Printing of Large Objects with High Resolution by Dynamic Projection Scanning Lithography |
| title_short | Three-Dimensional Printing of Large Objects with High Resolution by Dynamic Projection Scanning Lithography |
| title_sort | three dimensional printing of large objects with high resolution by dynamic projection scanning lithography |
| topic | 3D printing additive manufacturing DLP digital super resolution |
| url | https://www.mdpi.com/2072-666X/14/9/1700 |
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