Extrusion-based layered deposition systems using selective radiation exposure
AssigneeStratasys, Inc.
InventorsJames W. Comb, William R. Priedeman, JR.
Life of this patent
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Abstract
A system for building a three-dimensional object based on build data representing the three-dimensional object, the system comprising an extrusion head configured to deposit a radiation-curable material in consecutive layers, where the radiation-curable material of each of the consecutive layers is in a self-supporting state, and a radiation source configured to selectively expose a portion of at least one of the consecutive layers to radiation in accordance with the build data.
Claims20
A system for building a three-dimensional object based on build data representing the three-dimensional object, the system comprising:
- an extrusion head configured to deposit a radiation-curable material in consecutive layers, the deposited radiation-curable material of each of the consecutive layers being in a self-supporting state;
- and
- a radiation source configured to selectively expose a portion of at least one of the consecutive layers to radiation in accordance with the build data.
A system for building a three-dimensional object with a radiation-curable material based on a CAD model of the three-dimensional object, wherein the CAD model has a plurality of generated sliced layers, the system comprising:
- a build chamber configured to operate at a temperature that cools the radiation-curable material to a self-supporting state;
- at least one extrusion head configured to deposit the radiation-curable material as at least one layer within the build chamber;
- and
- a radiation source configured to selectively expose a portion of the at least one layer to radiation, wherein the exposed portion corresponds to one of the generated sliced layers.
A method for building a three-dimensional object based on build data representing the three-dimensional object, wherein the build data includes a plurality of generated sliced layer, the method comprising:
- (a) extruding a radiation-curable material to form a deposited layer;
- (b) cooling the extruded radiation-curable material to a self-supporting state;
- (c) selectively exposing a portion of the deposited layer to radiation in accordance with a first of the generated sliced layers, thereby forming a cured portion and an uncured portion of the deposited layer;
- (d) repeating steps (a)-(c) for the remainder of the generated sliced layers.
Dependencies are inferred from the claim text.