Method and system for additive manufacturing of peelable sacrificial structure
AssigneeStratasys, Inc.
InventorsMayan Rumbak, Eduardo Napadensky, Gavish Mida
Life of this patent
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Abstract
A method of additive manufacturing of a three-dimensional object includes sequentially dispensing and solidifying a plurality of layers. The plurality of layers may be formed with a plurality of different colored model materials, a flexible material arranged in a configured pattern to form a sacrificial structure at least partially encompassing the object, and a soft material. The soft material is arranged in a configured pattern to provide separation between the model material and the sacrificial structure. The plurality of different colored model materials is arranged in a configured pattern corresponding to the shape and color definition of the object.
Claims17
An additive manufacturing (AM) system for fabricating a three-dimensional colored object, the system comprising:
- a set of supply cartridges with different colored model materials, a cartridge containing a flexible material, and a cartridge containing a soft material, the soft material having an elastic modulus less than the flexible material;
- nozzle arrays mounted in dispensing heads configured to receive materials from the supply cartridges;
- a solidification system configured for solidifying the materials dispensed from the dispensing heads;
- and
- a computerized controller having a circuit configured for operating the dispensing heads and the solidification system to sequentially dispense and solidify a plurality of layers comprising (i) a plurality of different colored model materials received from said set of supply cartridges and arranged in a configured pattern corresponding to a shape and a color definition of the object, (ii) the flexible material arranged in a configured pattern to form a sacrificial structure at least partially encompassing the object, and (iii) the soft material arranged in a configured pattern to provide an intermediate structure between at least one model material of said plurality of different colored model materials and the sacrificial structure;
- wherein the flexible material is black and said circuit is configured to ensure that said nozzle arrays form a first black region of the object by an amount of said black flexible material, and a second black region of the object by digitally mixing the plurality of different colored model materials to create a black color.
Dependencies are inferred from the claim text.