SYSTEM FOR BUILD SEPARATION FROM A CURING INTERFACE IN AN ADDITIVE MANUFACTURING PROCESS

Abstract: an additive manufacturing system including a base assembly and a tray assembly. the base assembly includes a build window, substantially transparent to electromagnetic radiation; a projection system configured to project electromagnetic radiation toward an upper surface of the build window; and a tray seat arranged around a perimeter of the build window. the tray assembly is configured to engage with the base assembly in an engaged configuration and includes: a tray structure defining a registration feature configured to engage the tray seat to locate an aperture proximal to the upper surface of the build window in the engaged configuration; and a separation membrane that is configured to laminate across the upper surface of the build window in response to an evacuation of gas from an interstitial region and configured to separate from the build window in response to injection of gas into the interstitial region.

Inventor(s): Christopher Prucha, Joel Ong, John Paton

CPC Classification: B29C64/364 (SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms ; making laminated products by combining previously unconnected layers which become one product whose layers will remain together - ))

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