Method for build separation from a curing interface in an additive manufacturing process
AssigneeOrigin Laboratories, Inc.
InventorsChristopher Prucha, Joel Ong
Life of this patent
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Abstract
A layer-by layer method for additive manufacturing that includes: photocuring a first volume of resin to form a layer of a build at an upper surface of a separation membrane laminated over a build window; injecting a fluid into an interstitial region between the separation membrane and the build window; retracting the build from the build window; evacuating the fluid from the interstitial region; and photocuring a second volume of liquid resin to form a subsequent layer of the build between an upper surface of a separation membrane and the previous layer of the build.
Claims21
A method for additive manufacturing comprising:
- photocuring a first volume of a resin to form a first layer of a build at a surface of a separation membrane arranged across a build window;
- injecting a fluid into an interstitial region between the separation membrane and the build window to inflate the separation membrane and separate the separation membrane from the build window;
- retracting the first layer of the build from the build window to peel the separation membrane from the first layer of the build;
- evacuating the fluid from the interstitial region;
- and
- photocuring a second volume of the resin to form a second layer of the build between the surface of the separation membrane and the first layer of the build.
2-20. (canceled)
A method for additive manufacturing comprising:
- photocuring a first volume of a resin to form a first layer of a build at a surface of a separation membrane tensioned over a build window;
- pressurizing an interstitial region between the separation membrane and the build window to a first pressure to inflate the separation membrane;
- retracting the first layer of the build from the build window to peel the separation membrane from the first layer of the build;
- depressurizing the interstitial region to a second pressure;
- and
- photocuring a second volume of the resin to form a second layer of the build between the surface of the separation membrane and the first layer of the build.
A method for additive manufacturing comprising:
- photocuring a first volume of a resin to form a first layer of a build over a separation membrane arranged across a build window;
- injecting a fluid into an interstitial region between the separation membrane and the build window to inflate the separation membrane;
- retracting the first layer of the build from the build window;
- evacuating the fluid from the interstitial region;
- and
- photocuring a second volume of the resin to form a second layer of the build between the separation membrane and the first layer of the build.
Dependencies are inferred from the claim text.