System and Method of Membrane Release in Resin 3D Printing

Abstract: a 3d printing system and method for mitigating the force needed to separate a transparent printing membrane from a most-recently photocured layer of resin on a sample secured to a platform. the membrane is coupled to an actuator and a pivot joint adapted to rotate the membrane into the resin, and the platform is coupled to a vertical stage adapted to translate the platform downward. through simultaneous activation of the actuator and the vertical stage, the membrane is progressively peeled away from the sample. the system and method are suitable for various membrane-based 3d printing technologies including large-area projection micro stereolithography (p�sl).

Inventor(s): Liangkang Fu, Chen Yang, Xiao Ding, Chunguang Xia

CPC Classification: B29C64/129 (characterised by the energy source therefor, e.g. by global irradiation combined with a mask)

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