Scalable 3D printing of aperiodic cellular structures by rotational stacking of integral image formation
Name
sciadv.abh1200.pdf
Description
Published version
Size
1 MB
Format
Adobe PDF
Checksum (MD5)
5d206763f5148c7b592da77bb6e405b9
Author(s)
Kim, Seok
Handler, Jordan J
Cho, Young Tae
Barbastathis, George
Fang, Nicholas X
Date Issued
September 17, 2021
Journal
Science Advances
Publisher
American Association for the Advancement of Science (AAAS)
Citation
Kim, Seok, Handler, Jordan J, Cho, Young Tae, Barbastathis, George and Fang, Nicholas X. 2021. "Scalable 3D printing of aperiodic cellular structures by rotational stacking of integral image formation." Science Advances, 7 (38).
Version
Final published version
Abstract
The limitation of projection microstereolithography in additive manufacturing methods is that they typically use a single-aperture imaging configuration, which restricts their ability to produce microstructures in large volumes owing to the trade-off between image resolution and image field area. Here, we propose an integral lithography based on integral image reconstruction coupled with a planar lens array. The individual microlenses maintain a high numerical aperture and are used to create digital light patterns that can expand the printable area by the number of microlenses (103 to 104), thereby allowing for the scalable stereolithographic fabrication of 3D features that surpass the resolution-to-area scaling limit. We extend the capability of integral lithography for programmable printing of deterministic nonperiodic structures through the rotational overlapping or stacking of multiple exposures with controlled angular offsets. This printing platform provides new possibilities for producing periodic and aperiodic microarchitectures spanning four orders of magnitude from micrometers to centimeters.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Sloan School of Management
Singapore-MIT Alliance in Research and Technology (SMART)
Terms of Use
Creative Commons Attribution NonCommercial License 4.0
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1126/sciadv.abh1200
