# US 12,109,760 B2 · Three-dimensional objects printing method

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- Number: US 12,109,760 B2
- Document ID: US12109760B2
- Status: Granted
- Kind: B2
- Application number: 17/296,247
- Filed: 2019-10-30
- Published: 2022-04-28
- Granted: 2024-10-08
- Earliest claimed: 2018-11-28
- Assignees: Massivit 3D Printing Technologies Ltd
- Applicants: Massivit 3D Printing Technologies Ltd.
- Inventors: Gilad Arnon; Erez Zimerman; Ido De-La-Vega
- Web page: https://patentgrep.com/patent/US12109760B2

## CPC

- B22F 12/41: characterised by the type, e.g. laser or electron beam
- B29C 64/393: for controlling or regulating additive manufacturing processes
- B22F 10/38: to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
- B22F 10/80: Data acquisition or data processing
- B29C 64/209: Heads; Nozzles
- B29C 64/232: for motion along the axis orthogonal to the plane of a layer
- B29C 64/264: Arrangements for irradiation
- B29C 64/295: Heating elements
- B33Y 30/00: Apparatus for additive manufacturing; Details thereof or accessories therefor
- B33Y 50/00: Data acquisition or data processing for additive manufacturing
- B22F 10/14: by jetting of binder onto a bed of metal powder
- B22F 10/18: by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF]
- B22F 10/28: Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
- B22F 2999/00: Aspects linked to processes or compositions used in powder metallurgy
- B33Y 10/00: Processes of additive manufacturing
- B33Y 50/02: for controlling or regulating additive manufacturing processes
- Y02P 10/25: Process efficiency
- B22F: WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy C22C); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B29C: 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 B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

Described is an apparatus and method for the additive manufacturing of 3D objects. The apparatus includes a 3D object material deposition module configured to deposit a portion of material forming at least a layer of a 3D object, a 3D object material solidifying module configured to solidify at least the portion of material forming at least a layer of the 3D object and a control computer. The control computer includes a module configured to analyze the slope or curvature change ratio and operate material deposition module to deposit the 3D object material across the cross-section of the 3D object with at least one of a plurality of layers forming the 3D object that has different from other layers characteristics.

## Claims

### Claim 1

A method of 3D object printing, comprising:
providing a 3D object manufacturing apparatus including at least a module configured to analyze a slope or curvature change ratio of a 3D object surface and operate a material deposition module to deposit 3D object material across a cross-section of a 3D object with at least one of a plurality of layers forming the 3D object that has a characteristic different from other layers; and
manufacturing the 3D object by depositing, with the material deposition module, the 3D object material so that the 3D object includes the plurality of layers with the at least one layer that has a characteristic different from the other layers,
wherein the characteristic that the at least one layer that is different from the other layers is layer height and/or layer width,
wherein the at least one layer that has a characteristic different from the other layers is determined by the module analyzing at least three layers including the at least one layer prior to being printed, a layer above and a layer below the at least one layer.

### Claim 2

A method of 3D object printing, comprising:
providing a 3D object manufacturing apparatus including at least a module configured to analyze a slope or curvature change ratio of a 3D object surface and operate a material deposition module to deposit 3D object material across a cross-section of a 3D object with at least one of a plurality of layers forming the 3D object that has a characteristic different from other layers; and
manufacturing the 3D object by depositing, with the material deposition module, the 3D object material so that the 3D object includes the plurality of layers with the at least one layer that has a characteristic different from the other layers,
wherein the characteristic that the at least one layer that is different from the other layers is layer height and/or layer width,
wherein adaptation of the characteristic of layer height and/or width is performed by one of a group of parameters consisting of a change in a gap between the material deposition module and previously deposited material layer; material deposition module movement speed adjustment, and extrusion material temperature.

### Claim 3 (depends on 2)

The method, according to claim 2, wherein the layer height is shorter than a single regular layer height.

### Claim 4 (depends on 2)

The method, according to claim 2, wherein the layer height is greater than a single regular layer height.

### Claim 5 (depends on 1)

The method, according to claim 1, further comprising operating a 3D object material solidifying module configured to solidify at least the portion of the 3D object material forming at least a layer of the 3D object and forming at least a segment of the 3D object to be manufactured.

### Claim 6 (depends on 5)

The method, according to claim 5, wherein the 3D object material solidifying module solidifies the material by one of a group of radiations consisting of ultraviolet radiation, infrared radiation, microwave radiation, and heat.

### Claim 7 (depends on 5)

The method, according to claim 5, wherein the 3D object material solidifying module has a freedom of movement at least in one direction.

### Claim 8 (depends on 1)

The method, according to claim 1, wherein the 3D object material deposition module is at least one of a group of modules consisting of an inkjet module, extrusion module, and sintering module.

### Claim 9

A method of 3D object printing, comprising:
providing a 3D object manufacturing apparatus including at least a module configured to analyze a slope or curvature change ratio of a 3D object surface and operate a material deposition module to deposit 3D object material across a cross-section of a 3D object with at least one of a plurality of layers forming the 3D object that has a characteristic different from other layers; and
manufacturing the 3D object with the material deposition module by depositing the 3D object material from at least one nozzle of the material deposition module and without further mechanical manipulation of the material, so that the 3D object includes the plurality of layers with the at least one layer that has a characteristic different from the other layers,
wherein the characteristic that the at least one layer that is different from the other layers is layer height and/or layer width,
wherein the at least one layer that has a characteristic different from the other layers is determined by the module analyzing at least three layers including the at least one layer prior to being printed, a layer above and a layer below the at least one layer.

### Claim 10 (depends on 9)

The method, according to claim 9, further comprising operating a 3D object material solidifying module configured to solidify at least the portion of the 3D object material forming at least a layer of the 3D object and forming at least a segment of the 3D object to be manufactured.