Device for three-dimensional fabrication with cavity filling
First Claim
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1. A three-dimensional printer comprising:
- a first extruder configured to extrude a first build material;
a second extruder configured to extrude a second build material; and
a controller, the controller configured to fabricate a number of layers of an object from a computer model using a first material to provide an object having a number of layers including an exterior surface and an infill within the exterior surface, the controller further configured to deposit a second material within a void space defined by the infill within the exterior surface, and the controller further configured to fabricate at least one additional layer above the number of layers based on the computer model to enclose the second material within the void space.
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Abstract
A three-dimensional printer is configured to fill interior cavities of a fabricated object with functional or aesthetic materials during fabrication. In general, a number of layers can be fabricated with an infill pattern that leaves void space within an exterior surface of the object. These void spaces can receive a second material such as an epoxy or adhesive that spans multiple layers of the object to increase structural integrity. Similarly, aesthetic materials may be used to add color, opacity, or other desired properties to a fabricated object. The void spaces can also or instead form molds that are filled with a build material to provide a fabricated object.
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Citations
19 Claims
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1. A three-dimensional printer comprising:
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a first extruder configured to extrude a first build material; a second extruder configured to extrude a second build material; and a controller, the controller configured to fabricate a number of layers of an object from a computer model using a first material to provide an object having a number of layers including an exterior surface and an infill within the exterior surface, the controller further configured to deposit a second material within a void space defined by the infill within the exterior surface, and the controller further configured to fabricate at least one additional layer above the number of layers based on the computer model to enclose the second material within the void space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification