KR102248246B1 - Manufacturing method of three-dimensional structures using room temperature hardening ceramic material - Google Patents

Abstract

In the present invention, by controlling any one of the extrusion speed of the room temperature curable ceramic material, the moving speed of the nozzle, and the moving path of the nozzle, the ceramic laminated layer including the reinforcing node is repeatedly laminated. It relates to a method for manufacturing a three-dimensional structure using a room temperature curable ceramic material that can be formed to be integrally formed.
To this end, the method for manufacturing a three-dimensional structure using a room temperature-curable ceramic material of the present invention comprises: a condition setting step of setting an extrusion path and an extrusion condition based on a cross-sectional layer including a portion in which a reinforcing node is to be formed; And a lamination step of forming a ceramic laminate layer including a linear portion and a reinforcing node by spraying a room temperature-curable ceramic material while the main material jet nozzle moves according to the extrusion path and extrusion conditions.

Description

Manufacturing method of three-dimensional structures using room temperature hardening ceramic material}

The present invention relates to a method for manufacturing a three-dimensional structure using a room temperature curing ceramic material, and more particularly, by controlling any one of the extrusion speed of the room temperature curing ceramic material, the moving speed of the nozzle, and the moving path of the nozzle, The present invention relates to a method for manufacturing a 3D structure using a room temperature curing ceramic material that can be formed such that a reinforcing node is integrally formed in the final 3D structure by repeatedly stacking the included ceramic layered layers.

3D printing is a technology that cuts and analyzes a three-dimensional object according to a three-dimensional design drawing as if it is integrating, and then a thin layer is injected with plastic liquid or other raw materials, solidified, and sequentially laminated to produce a three-dimensional solid object.

The above-described 3D printing has an advantage over traditional material processing technology in various aspects such as speed, price, and ease of use.

Meanwhile, 3D printing has various methods depending on raw materials such as liquids, powders, and solids, or curing sources such as laser, heat, and light, and largely, FDM (Fused Deposition Modeling), DLP (Digital Light Processing), SLA (Stereolithography) ), SLS (Selective Laser Sintering), PolyJet (Photopolymer Jetting Technology), DMT (Direct Metal Tooling), PBP (Powder Bed & inkjet head 3d printing), LOM (Laminated Object Manufacturing).

In general, a solidification modeling material such as wire and filament formed of thermoplastic plastic is supplied through a supply reel and a transfer reel, and the supplied modeling material is melted in a heater nozzle mounted on a transfer mechanism that moves three-dimensionally with respect to the workbench. The molten resin extrusion molding method (FDM), in which a two-dimensional planar shape is formed by discharging and is laminated one by one and molded into three dimensions, is widely used.

Recently, a three-dimensional concrete printing system for manufacturing a building or a part of a building by using a concrete mixture as a solidifying modeling material has been developed.

However, in the conventional 3D concrete printing system, a plurality of layers corresponding to the cross section of the target structure are sequentially stacked and formed to complete the target structure. As the joint surface is formed between the layers and the layers, the overall rigidity of the structure decreases. There was a serious problem.

In order to solve the above-described problem, Patent No. 10-1828907 discloses a'method for manufacturing a concrete structure using a three-dimensional concrete print system'.

In the'method of manufacturing a concrete structure using a three-dimensional concrete print system', a first step of setting a layer path corresponding to each section of a three-dimensional concrete structure, and a first spray nozzle for ejecting a concrete mixture along the layer path A second step of forming a bridging layer by being moved to form a concrete layer, wherein bridging aggregate is sprayed through a second spray nozzle that is moved along a path overlapping with the first spray nozzle on the surface of the formed concrete layer. It is configured to contain.

However, the above-described manufacturing method consists of a first spray nozzle for spraying a concrete mixture and a second spray nozzle for spraying a bridging aggregate, and as a result of spraying two different materials with a plurality of spray nozzles, the mechanical configuration is complex. There is a disadvantage that a separate aggregate must be prepared for strength reinforcement.

Registered Patent No. 10-1828907 (2018. 02. 07)

An object of the present invention for solving the problems according to the prior art is to repeat the ceramic laminated layer including the reinforcing node by controlling any one of the extrusion speed of the room temperature curing ceramic material, the moving speed of the nozzle, and the moving path of the nozzle. By stacking, the reinforcing nodes can be formed integrally with the final 3D structure, and through this, the structure of the final 3D structure is reinforced, the cracks are prevented during the curing process of the ceramic material, and the protruding design is formed by the reinforcing nodes. It relates to a method for manufacturing a three-dimensional structure using a room temperature curable ceramic material capable of implementing the same.

A method for manufacturing a three-dimensional structure using a room temperature-curable ceramic material of the present invention for solving the above technical problem comprises: a condition setting step of setting an extrusion path and an extrusion condition based on a cross-sectional layer including a portion in which a reinforcing node is to be formed; And a lamination step of forming a ceramic laminate layer including a linear portion and a reinforcing node by spraying a room temperature-curable ceramic material while the main material jet nozzle moves according to the extrusion path and extrusion conditions.

Preferably, the cross-sectional layer including the portion in which the reinforcing node is to be formed may be formed through a slicing process of a reinforcing 3D structure model including a portion in which the reinforcing node is to be formed in the original 3D structure model.

Preferably, the cross-sectional layer including the portion in which the reinforcing node is to be formed may be formed by reinforcing the portion in which the reinforcing node is to be formed in the cross-sectional layer formed through a slicing process of the original 3D structure model.

Preferably, the lamination of the reinforcing nodes in the lamination step is performed by controlling the extrusion speed of the room temperature-curable ceramic material extruded through the main material injection nozzle while the movement speed of the main material injection nozzle is constant. I can.

Preferably, the stacking of the reinforcing nodes in the stacking step may be performed by controlling the moving speed of the main material injection nozzle while the extrusion speed of the main material injection nozzle is constant.

Preferably, the stacking of the reinforcing nodes in the stacking step may be performed by controlling the movement path of the main material injection nozzle while the extrusion speed of the main material injection nozzle is constant.

Preferably, in the condition setting step, an extrusion path and extrusion conditions are set for a plurality of cross-sectional layers formed through a slicing process of a three-dimensional structure model, and in the stacking step, each ceramic corresponding to the plurality of cross-sectional layers is set. It may be made to repeatedly stack the stacked layers.

Preferably, a reinforcing node of a lower layer ceramic multilayer layer and a reinforcement node of an upper ceramic multilayer layer stacked up and down adjacent to each other may be formed to overlap at least some areas.

The present invention as described above, by controlling any one of the extrusion speed of the room temperature curable ceramic material, the moving speed of the nozzle, and the moving path of the nozzle to repeatedly stack the ceramic laminated layer including the reinforcing node, the final three-dimensional structure The reinforcing node can be formed to be integrally formed, and this has the advantage of realizing the structural reinforcement of the final 3D structure, the prevention of cracks during the curing process of the ceramic material, and the formation of a protruding design by the reinforcing node. .

On the other hand, as the reinforcing node is formed, the advantage of reinforcing the 3D structure generated after the final lamination manufacturing in terms of shape without a separate reinforcement material, and discontinuity defects occurring at the interface between stacks by increasing the continuity of the interface through the stacking of compression nodes. There are advantages of minimizing the occurrence of or suppressing the propagation of generated defects, and improving aesthetics through the application of a pattern using a support and a node when implementing the vertical inclination of the wall.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a view showing a linear portion constituting a cross-sectional layer of a general three-dimensional structure.
2 is a view showing a linear portion constituting a cross-sectional layer of a three-dimensional structure according to an embodiment of the present invention.
3 and 4 are flow charts showing a process of a method of manufacturing a three-dimensional structure using a room temperature curing ceramic material according to an embodiment of the present invention.
5 is a diagram illustrating a method of implementing a reinforcing node in a method for manufacturing a 3D structure using a room temperature curing ceramic material according to an embodiment of the present invention.
6 is a view showing the shape of an extruded product implemented by a method of manufacturing a three-dimensional structure using a room temperature curing ceramic material according to an embodiment of the present invention.
7 and 8 are views showing a schematic configuration of a nozzle device for a method of manufacturing a three-dimensional structure using a room temperature curing ceramic material according to an embodiment of the present invention.

The present invention can be implemented in various other forms without departing from the technical idea or main features thereof. Accordingly, the embodiments of the present invention are merely illustrative in all respects and should not be interpreted as limiting.

Terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms.

The above terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

The term and/or includes a combination of a plurality of items or any of a plurality of items.

When an element is referred to as being'connected' or'connected' to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be.

On the other hand, when a component is referred to as being'directly connected' or'directly connected' to another component, it should be understood that there is no other component in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In the present application, terms such as'include','include','have', etc. are intended to designate the existence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification. It is to be understood that the possibility of the presence or addition of other features or numbers, steps, actions, components, parts, or combinations thereof beyond that is not preliminarily excluded.

Unless otherwise defined, all terms used herein including technical or scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs.

Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in the present application. Does not.

Room temperature curing ceramic extrusion lamination manufacturing technology is a technology that produces a linear extrudate through extrusion of raw materials in the form of a slurry or paste, and manufactures a two-dimensional or three-dimensional part or product through lamination along a designated transport path.

The ceramic product produced through this process is called a green molded body, and in order to finally give strength, a sintering process known as a densification process through mutual material diffusion between ceramic particles is performed.The sintering process is mainly heat or thermo-mechanical energy. It consists in the process of imparting to the molded body.

On the other hand, a material such as cement has a feature of realizing high strength through a chemical reaction at room temperature known as a hydration reaction, and by this feature, a material such as cement is extruded to create and laminate a linear extrudate. Or, when manufacturing a three-dimensional part or product, the manufactured molded body can be made into a final product having strength at room temperature.

As described above, architectural 3D printing technology for manufacturing buildings through extrusion-type lamination manufacturing by utilizing the room temperature hardening properties of materials such as cement is being commercialized.

Room temperature curing ceramic extrusion-type additive manufacturing technology varies in quality depending on the characteristics of the extruded material, the additive manufacturing process, and the three-dimensional shape of the object.

Specifically, the extrudability of the material, the ability to maintain the shape of the extruded laminate, the interfacial continuity between the laminates forming a three-dimensional shape, and the ability to maintain the macroscopic shape of the part in the three-dimensional lamination process should be considered in the entire cycle of extrusion laminate manufacturing.

In addition, the structural strength of the final product varies depending on the shape of the product.

If a process construction method that can be universally applied to various products produced in small quantities due to such a complex correlation is difficult to resolve the uncertainty of high material-process-product characteristics, there is a limit to the commercialization of the technology.

In order to overcome this limitation, in the present invention, in the method of forming a three-dimensional structure by stacking a plurality of layers formed by forming a linear portion 100 formed by extrusion of a room temperature curable ceramic material in a predetermined path, the By including the reinforcing node 100n in the linear part 100, it is intended to reinforce the structure of the 3D structure, prevent cracks during the curing process of ceramic materials, and form a protruding design.

For example, as shown in FIG. 1, a typical extrusion-type laminate implements a linear linear portion 10 having a uniform width and thickness, but as shown in FIG. 2, in the present invention, a certain period or A three-dimensional structure is formed by generating a reinforcing node 100n having a selective period.

As the reinforcing node 100n performs a function of reinforcing strength in a three-dimensional structure and is configured to overlap vertically in a height direction, it is possible to secure quality reliability of a three-dimensional structure through a function of securing the bonding strength. I can.

Meanwhile, a model of a 3D structure can generally be created through a CAD method.

The node reinforcement method in the model created from the CAD file is: First, a method of designing an optimal node through CAE and manufacturing a 3D model with reinforced nodes through it, and second, a node creation algorithm in the step of slicing the CAD file. There may be a way to directly edit G-Code by using.

In the first method, the node reinforcement step using CAE goes through a process of optimizing structural stability through the size and pattern of the node, and through this, a 3D model to which the node is reinforced is determined.

In the node reinforcement 3D model, the product is manufactured through the process of determining the operating conditions of the extruder, the transfer driving unit, and the node generation device through the standard algorithm for forming a node in the slicing process and implementing it as a process.

In the second method, when node reinforcement is performed in the slicing process, the node is reinforced through a relatively simple shape but a standardized node generation algorithm based on an existing database.

The node generation algorithm calculates the volume of the extrudate according to the node spacing and derives pulsed driving information to implement the calculated volume for each position of the stack during the stacking process.

It is an automated method that generates G-Code through the process of integrating pulse drive information for each node into extrusion drive or transfer structure information.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the same or corresponding components are assigned the same reference numerals regardless of the reference numerals, and redundant descriptions thereof will be omitted.

In describing the present invention, when it is determined that a detailed description of a related known technology may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

A method for manufacturing a 3D structure using a room temperature curable ceramic material according to an embodiment of the present invention includes an extrusion path and an extrusion path based on a cross-sectional layer of a 3D structure model including a portion Ns in which a reinforcing node 100n is to be formed. A condition setting step of setting extrusion conditions, and a ceramic laminate layer (100+100n) including a reinforcing node (100n) by spraying a room temperature-curable ceramic material while the main material spraying nozzle 200 moves along the extrusion path and extrusion conditions. It comprises a lamination step to form.

The reinforcing node 100n refers to a portion formed in a circular or elliptical shape that is integrally included on the linear portion 100 formed by extrusion of a room temperature-curable ceramic material, and the reinforcing node 100n is the linear It is formed wider than the width of the part 100.

First, the condition setting step is a step of setting the extrusion path and extrusion conditions based on the cross-sectional layer of the 3D structure model including the portion where the reinforcing node 100n will be formed, and will be described in detail. .

As an example, as shown in FIG. 3, a cross-sectional layer of a 3D structure model including a portion in which the reinforcing node 100n is to be formed is a reinforcing node 100n in the original 3D structure model M. A reinforced 3D structure model M′ including a portion to be formed may be formed through a slicing process.

Specifically, after forming a reinforced 3D structure model (M`) to which the part where the reinforcing node 100n will be formed is added based on the original 3D structure model (A), the reinforced 3D structure model (M`) The extrusion path of the room temperature-curable ceramic material is divided into a plurality of single-sided layers (Ms+Ns) through the slicing process of, and corresponds to the linear counterpart (Ms) and the node counterpart (Ns) of each single-sided layer (Ms+Ns). And setting the extrusion conditions.

Here, the extrusion path is a movement path of the main material injection nozzle 200 for extruding the room temperature curable ceramic material, and the extrusion condition is the movement speed of the main material injection nozzle 200 and the main material injection nozzle 200 extruded through the Includes the material's extrusion rate.

As another example, as shown in FIG. 4, the cross-sectional layer of the 3D structure model including the portion where the reinforcing node 100n is to be formed is a cross section formed through a slicing process of the original 3D structure model M It may be formed by reinforcing a portion of the layer where the reinforcing node 100n is to be formed.

Specifically, the original three-dimensional structure model (M) is divided into a plurality of cross-sectional layers through a slicing process, and a node corresponding portion (Ns) in which a reinforcing node (100n) is to be formed in the linear corresponding portion (Ms) of each cross-sectional layer. After reinforcing so that the reinforcing node 100n is formed, the extrusion path of the room temperature curing ceramic material corresponding to the correspondence to the linear counterpart Ms and the node counterpart Ns of each cross-sectional layer to which the reinforcing node 100n is formed is added, and Set the extrusion conditions.

Here, the extrusion path is a movement path of the main material injection nozzle 200 for extruding the room temperature curable ceramic material, and the extrusion condition is the movement speed of the main material injection nozzle 200 and the main material injection nozzle 200 extruded through the Includes the material's extrusion rate.

Meanwhile, in the condition setting step, it is preferable that the extrusion path and extrusion conditions are set for all cross-sectional layers of the three-dimensional structure model including the portion in which the reinforcing node 100n is to be formed.

Next, in the lamination step, the main material injection nozzle 200 sprays the room temperature-curable ceramic material while moving according to the extrusion path and extrusion conditions to form a ceramic laminate layer (100+100n) including a reinforcing node 100n. As a step, this will be described in detail.

The lamination step is a step of forming a ceramic laminate layer (100+100n) by extruding a room temperature curable ceramic material through the main material spray nozzle 200.

The ceramic multilayer layer (100+100n) includes a linear portion 100 and a reinforcing node 100n, and in the lamination step, the linear portion 100 and the reinforcing node 100n may be formed. The room temperature curable ceramic material is extruded to form the ceramic multilayer layer (100+100n).

Specifically, the method of forming the ceramic multilayer layer (100+100n) is made to extrude the room temperature-curable ceramic material while the main material spray nozzle 200 moves in response to the extrusion path and extrusion conditions set in the condition setting step. .

At this time, in the lamination step, as shown in FIG. 5, by controlling any one of the extrusion speed of the room temperature curing ceramic material, the movement speed of the main material injection nozzle 200, and the movement path of the main material injection nozzle 200, the A ceramic multilayer layer 100+100n including the linear portion 100 and the reinforcing node 100n may be formed.

For example, in a state in which the moving speed of the main material injection nozzle 200 is constant, the ceramic laminate layer (100+100n) by controlling the extrusion speed of the room temperature-curable ceramic material extruded through the main material injection nozzle 200 Can be formed.

Specifically, when the main material injection nozzle 200 moves along the extrusion path set in the condition setting step to form the linear part 100, when it reaches the formation point of the reinforcing node 100n, the main material injection nozzle By increasing the extrusion speed of the room temperature curable ceramic material extruded through 200 to temporarily increase the amount of extrusion, the reinforcing node 100n may be formed at the corresponding point.

As another example, the ceramic multilayer layer 100+100n may be formed by controlling the moving speed of the main material injection nozzle 200 while the extrusion speed of the main material injection nozzle is constant.

Specifically, when the main material injection nozzle 200 moves along the extrusion path set in the condition setting step to form the linear part 100, when it reaches the formation point of the reinforcing node 100n, the main material injection nozzle As the movement speed of 200 is controlled to temporarily slow or stop, the amount of extrusion of the room temperature curable ceramic material is temporarily increased at the corresponding point, thereby forming the ceramic multilayer layer 100+100n.

As another example, the reinforcing node 100n may be formed by controlling the movement path of the main material injection nozzle 200 while the extrusion speed of the main material injection nozzle is constant.

Specifically, when the main material injection nozzle 200 moves along the extrusion path set in the condition setting step to form the linear part 100, when it reaches the formation point of the reinforcing node 100n, the main material injection nozzle As 200 moves in a circular or elliptical path at least once or more in response to the shape of the reinforcing node 100n, the ceramic laminate layer ( 100+100n) can be formed.

6 is a diagram showing a pattern of a reinforcing node 100n, in which (a), (b), and (c) of FIG. 6 is a reinforcing node 100n formed at a predetermined period in one linear part 100 The case was illustrated, and FIG. 6D illustrates a case in which a reinforcing node 100n is formed when a pattern for reinforcing the interior of the double wall structure and the double wall structure is applied.

Through the above-described process, a ceramic multilayer layer 100+100n consisting of the linear part 100 and the reinforcing node 100n can be formed, and by repeating this process, a plurality of ceramic multilayer layers 100+100n ) Can be continuously stacked to form a three-dimensional structure.

At this time, at least a partial area overlaps the reinforcement node 100n of the lower ceramic multilayer layer (100+100n) stacked up and down adjacent to each other and the reinforcement node 100n of the upper ceramic multilayer layer (100+100n) It is preferable that it be made so that the stacking area of the upper and lower ceramic stacked layers (100+100n) is increased through such overlapping, thereby reinforcing the structure of the final 3D structure.

On the other hand, in addition to the three formation methods of the reinforcing node 100n described above, the formation of the reinforcing node 100n is a normalized node formation extrusion cycle, a transfer cycle, and a transfer at the formation point of the reinforcing node 100n. It can be applied to additive manufacturing through an algorithm that enables convenient path design by implementing a path cycle by G-coded and generating extrusion and transfer information between a plurality of nodes.

In addition, since each reinforcing node (100n) can be used as a reference point for productization and productization, it is possible to quickly designate the work location when modifying G-Code for monitoring and solving problems of stacking that occurs in the additive manufacturing process. It has the advantage of making it easy to generate G-Code for modification work.

In fact, in the 3D stacking model, each reinforcement node (100n) is given a unique address value for each location, and if an error code occurs in the process, G It is necessary to modify the -code.

In this case, using the address of the reinforcement node (100n) to select a healing region speeds up the decision of the feedback process, and restricts G-code information between the subsequent reinforcement nodes (100n) of the designated reinforcement node (100n). Through the method of modifying with the method, the diagnosis-process information modification-correction information use stacking can proceed quickly.

Meanwhile, a nozzle for implementing a method for manufacturing a 3D structure using a room temperature curing ceramic material according to the present embodiment may be configured as shown in FIGS. 7 and 8.

Specifically, a main material injection nozzle 200 formed in a cylindrical shape so that the material can be sprayed downward in the central portion, and an additional attachment device 300 in the form of a ring to surround the main material injection nozzle 200 may be configured. have.

The additional attachment device 300 may be configured to rotate by using the main material spray nozzle 200 as a rotation axis through means such as a guide and a motor, and the additional attachment device 300 includes an auxiliary spray nozzle 310, 320) may be provided, and an interfacial lubricant, a hardening retardant, or an additional particulate additive may be sprayed through the auxiliary spray nozzles 310 and 320.

In addition, the additional attachment device 300 may be provided with a position sensor 330 for detecting a position on a plane, the position sensor 330 is used for the purpose of controlling the position at the initial position and the node formation position. At the same time, it includes a sensor and communication module with additional functions to check the relative position in the space of the extruder by using the condition of moving the position from the node formation position to the node formation as a switch. The ability to monitor the condition may be possible.

Although the present invention has been described based on a preferred embodiment with reference to the accompanying drawings, it is apparent to those skilled in the art that many various and obvious modifications are possible without departing from the scope of the present invention from this description. Accordingly, the scope of the present invention should be construed by the claims described to include many of these variations.

100: linear part
100n: node for reinforcement
Ms: Linear counterpart
Ns: node counterpart

Claims (8)

A condition setting step of setting an extrusion path and an extrusion condition based on a cross-sectional layer including a portion in which a reinforcing node is to be formed; And
Including; a lamination step of forming a ceramic laminate layer including a linear portion and a reinforcing node by spraying a room temperature-curable ceramic material while the main material jet nozzle moves according to the extrusion path and extrusion conditions,
In the laminating step, at least two laminating layers are formed,
The linear portion and the reinforcing node are formed of the main material,
The reinforcing node is formed to be wider than the width of the linear part,
A method for manufacturing a three-dimensional structure using a room temperature curable ceramic material in which a reinforcing node of a lower ceramic multilayer layer and a reinforcement node of an upper ceramic multilayer layer stacked up and down adjacent to each other are laminated to overlap at least some areas. The method of claim 1,
A cross-sectional layer including a portion in which the reinforcing node is to be formed,
A method for manufacturing a 3D structure using a room temperature curing type ceramic material, characterized in that a reinforced 3D structure model including a portion in which a reinforcing node is to be formed in the original 3D structure model is formed through a slicing process. The method of claim 1,
A cross-sectional layer including a portion in which the reinforcing node is to be formed,
3D structure manufacturing method using a room temperature curing type ceramic material, characterized in that formed by reinforcing a portion in which a reinforcing node is to be formed on a cross-sectional layer formed through a slicing process of an original 3D structure model. The method of claim 1,
The stacking of the reinforcing nodes in the stacking step,
A method for manufacturing a three-dimensional structure using a room temperature-curable ceramic material, characterized in that lamination is performed by controlling the extrusion speed of the room-temperature-curable ceramic material extruded through the main-material spray nozzle while the movement speed of the main material spray nozzle is constant. . The method of claim 1,
The stacking of the reinforcing nodes in the stacking step,
3D structure manufacturing method using a room temperature curing type ceramic material, characterized in that the lamination is performed by controlling the moving speed of the main material injection nozzle while the extrusion speed of the main material injection nozzle is constant. The method of claim 1,
The stacking of the reinforcing nodes in the stacking step,
3D structure manufacturing method using a room temperature curing type ceramic material, characterized in that the lamination is performed by controlling the movement path of the main material injection nozzle while the extrusion speed of the main material injection nozzle is constant. The method of claim 1,
In the condition setting step, an extrusion path and an extrusion condition are set for a plurality of cross-sectional layers formed through a slicing process of a three-dimensional structure model,
In the lamination step, a method for manufacturing a three-dimensional structure using a room temperature curable ceramic material, characterized in that the ceramic laminate layers corresponding to the plurality of cross-sectional layers are repeatedly laminated. delete

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