System and method for roll-to-roll film tensioning for reduced separation force during bottom-up stereolithography

Duoss, Eric B.; Oakdale, James; Rodriguez, Nicholas Anthony; Song, Hongtao; Crawford, Richard; Seepersad, Carolyn; Chen, Morgan

System and method for roll-to-roll film tensioning for reduced separation force during bottom-up stereolithography

Patent · Tue Apr 11 00:00:00 EDT 2023

OSTI ID:1998277

Duoss, Eric B.; Oakdale, James; Rodriguez, Nicholas Anthony; Song, Hongtao; Crawford, Richard; Seepersad, Carolyn; Chen, Morgan

The present disclosure relates to a tensioning system for use in a stereolithography manufacturing application. The system may have a build plate for supporting a three dimensional part being formed using a photo responsive resin, a base plate and a release element extending over the base plate. The release element is configured to receive a quantity of photo responsive resin for forming a new material layer of the three dimensional part. A pair of tensioning components are secured to opposite ends of the release element, and apply a controlled tension force to the release element during peeling of the release element to reduce a separation force required to separate the release element from the new material layer after the new material layer is cured.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Univ. of Texas, Austin, TX (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC52-07NA27344

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA); The Board of Regents of The University of Texas System (Austin, TX)

Patent Number(s):: 11,623,396

Application Number:: 17/028,543

OSTI ID:: 1998277

Country of Publication:: United States

Language:: English

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