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Scalable 3D printing of aperiodic cellular structures by rotational stacking of integral image formation.
Kim, Seok; Handler, Jordan J; Cho, Young Tae; Barbastathis, George; Fang, Nicholas X.
Afiliación
  • Kim S; Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
  • Handler JJ; Department of Mechanical Engineering, Changwon National University, Changwon, South Korea.
  • Cho YT; Sloan School of Management, Massachusetts Institute of Technology, Cambridge, MA 02142, USA.
  • Barbastathis G; Department of Mechanical Engineering, Changwon National University, Changwon, South Korea.
  • Fang NX; Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Sci Adv ; 7(38): eabh1200, 2021 Sep 17.
Article en En | MEDLINE | ID: mdl-34533994
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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos