Rapid digital light 3D printing enabled by a soft and deformable hydrogel separation interface.

ABSTRACT: The low productivity of typical 3D printing is a major hurdle for its utilization in large-scale manufacturing. Innovative techniques have been developed to break the limitation of printing speed, however, sophisticated facilities or costly consumables are required, which still substantially restricts the economic efficiency. Here we report that a common stereolithographic 3D printing facility can achieve a very high printing speed (400 mm/h) using a green and inexpensive hydrogel as a separation interface against the cured part. In sharp contrast to other techniques, the unique separation mechanism relies on the large recoverable deformation along the thickness direction of the hydrogel interface during the layer-wise printing. The hydrogel needs to be extraordinarily soft and unusually t

SUBMITTER: Wu J 

PROVIDER: S-EPMC8523520 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature