# US 12,179,416 B2 · Manufacturing systems and methods for three-dimensional printing

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- Number: US 12,179,416 B2
- Document ID: US12179416B2
- Status: Granted
- Kind: B2
- Application number: 17/420,643
- Filed: 2021-06-04
- Published: 2023-05-18
- Granted: 2024-12-31
- Earliest claimed: 2020-06-05
- Assignees: DC Precision Ceramics, LLC
- Applicants: DC Precision Ceramics, LLC
- Inventors: David Crenshaw
- Web page: https://patentgrep.com/patent/US12179416B2

## CPC

- B29C 48/02: Small extruding apparatus, e.g. handheld, toy or laboratory extruders
- B29C 64/118: using filamentary material being melted, e.g. fused deposition modelling [FDM]
- B22F 10/18: by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF]
- B22F 10/25: Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
- B22F 10/40: Structures for supporting workpieces or articles during manufacture and removed afterwards
- B22F 10/50: Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
- B22F 12/10: Auxiliary heating means
- B22F 12/226: {for rotary motion}
- B22F 12/53: Nozzles
- B22F 12/55: Two or more means for feeding material
- B22F 12/86: Serial processing with multiple devices grouped
- B29C 48/05: Filamentary, e.g. strands
- B29C 48/07: Flat, e.g. panels
- B29C 48/2566: {Die parts}
- B29C 48/91: Heating, e.g. for cross linking
- B29C 48/92: Measuring, controlling or regulating
- B29C 64/188: involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control (surface shaping B29C59/00; after-treatment of articles without altering their shape B29C71/00)
- B29C 64/194: during lay-up
- B29C 64/209: Heads; Nozzles
- B29C 64/227: Driving means
- B29C 64/295: Heating elements
- B29C 64/336: of two or more materials
- B29C 64/40: Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
- B33Y 10/00: Processes of additive manufacturing
- B33Y 30/00: Apparatus for additive manufacturing; Details thereof or accessories therefor
- B33Y 40/00: Auxiliary operations or equipment, e.g. for material handling
- B33Y 50/02: for controlling or regulating additive manufacturing processes
- B33Y 70/10: Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
- C04B 35/00: Shaped ceramic products characterised by their composition {(porous ceramic products C04B38/00; ceramic articles characterised by particular shape, see the relevant classes, e.g. linings for casting ladles, tundishes, cups or the like B22D41/02; ceramic substrates for microelectronic semi-conductors H10W70/692)}; Ceramics compositions ({shaping of ceramics B28B;} containing free metal bonded to carbides, diamond, oxides, borides, nitrides, silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides other than as macroscopic reinforcing agents C22C); Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products {(infiltration of sintered ceramic preforms with molten metal C04B41/51; chemical preparation of powders of inorganic compounds C01)}
- B29C 48/30: Extrusion nozzles or dies (extrusion characterised by the shape or cross-section of the extruded article B29C48/03)
- B29C 2948/92209: Temperature
- B29C 2948/926: Flow or feed rate
- B29C 2948/92704: Temperature
- C04B 2235/6022: Injection moulding
- C04B 2235/6026: Computer aided shaping, e.g. rapid prototyping
- Y02P 10/25: Process efficiency
- 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)
- 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
- 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
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A three-dimensional (3D) printing system may comprise a frame; and an additive component(s) configured to couple to the frame. The additive component(s) may comprise a first extrusion unit, a second extrusion unit, and/or a third extrusion unit. The 3D printing system may be a portion of a hybrid computer numerical control (CNC) machining/3D printing system and configured to manufacture a 3D component autonomously from start to finish. The additive component(s) may comprise a heating system including a hot-air blower.

## Claims

### Claim 1

A condensing device for use in a 3D printing system, the condensing device comprising:
a first spindle taper adaptable to be operably coupled to a spindle of a computer numerical control (CNC) machining device;
a tip comprising an aperture disposed at a most distal end of the tip and at least partially defining a longitudinal axis;
a housing coupled to the tip;
an air driving system disposed between the first spindle taper and the tip the air driving system configured to route air towards an air outlet disposed proximate the tip; and
a material forming apparatus disposed at least partially within the tip and protruding at least partially outward through the aperture, the material forming apparatus configured to conform a pre-deposited material;
wherein the air driving system comprises a turbine, and wherein the turbine is configured to rotate in response to the air blowing on a bucket of each blade of the turbine.

### Claim 2 (depends on 1)

The condensing device of claim 1, further comprising a plumbing system configured to couple to a heating system.

### Claim 3 (depends on 2)

The condensing device of claim 2, wherein the plumbing system is configured to receive hot-air from the heating system during operation of the condensing device via the CNC machining device.

### Claim 4 (depends on 1)

The condensing device of claim 1, further comprising a damping system coupled to the material forming apparatus.

### Claim 5 (depends on 4)

The condensing device of claim 4, wherein the damping system comprises a strut.

### Claim 6 (depends on 1)

The condensing device of claim 1, wherein the turbine is configured to rotate relative to the housing.

### Claim 7 (depends on 1)

The condensing device of claim 1, further comprising a damping system comprising a strut, wherein the material forming apparatus is coupled to the strut.

### Claim 8 (depends on 7)

The condensing device of claim 7, wherein the damping system is configured to dampen the material forming apparatus during operation of the condensing device.

### Claim 9 (depends on 7)

The condensing device of claim 7, wherein the damping system is configured to allow the material forming apparatus to move axially along a central axis of the strut during operation of the condensing device.

### Claim 10 (depends on 1)

The condensing device of claim 1, further comprising a plumbing system disposed at least partially within the housing, wherein the plumbing system comprises the air outlet, an air inlet, and a conduit extending from the air outlet to the air inlet.

### Claim 11 (depends on 10)

The condensing device of claim 10, further comprising a coupling disposed proximate the air inlet.

### Claim 12 (depends on 11)

The condensing device of claim 11, wherein the coupling is configured to removably couple to a heating system of a hybrid CNC machining/3D printing device with the 3D printing system.

### Claim 13 (depends on 1)

The condensing device of claim 1, wherein the air driving system comprises a fan configured to force the air through the air outlet.

### Claim 14 (depends on 13)

The condensing device of claim 13, wherein the fan is configured to direct the air through the housing and out the air outlet during operation of the condensing device.

### Claim 15 (depends on 14)

The condensing device of claim 14, further comprising bearings configured to facilitate rotation of the first spindle taper and the fan.

### Claim 16 (depends on 15)

The condensing device of claim 15, wherein the fan rotates relative to the housing.

### Claim 17 (depends on 1)

The condensing device of claim 1, wherein the turbine is configured to receive the air from the 3D printing system.

### Claim 18 (depends on 1)

The condensing device of claim 1, wherein the air is heated and oriented towards the pre-deposited material through the air outlet during operation of the condensing device.

### Claim 19 (depends on 1)

The condensing device of claim 1, further comprising a disengagement pin coupled to the housing, the disengagement pin configured to keep the housing in a stationary state during operation of the air driving system.
