JP6565370B2 - 3D modeling apparatus, 3D modeling method, 3D modeling program, and information processing apparatus - Google Patents

Description

  The present invention relates to a three-dimensional modeling apparatus, a three-dimensional modeling method, a three-dimensional modeling program, and an information processing apparatus.

  A three-dimensional modeling apparatus using an inkjet method is known. For example, a series of processes such as supplying powder, leveling the surface of the powder to form a powder layer, and discharging the modeling liquid onto the powder layer to form dots are repeatedly executed. A three-dimensional modeling apparatus that models a three-dimensional model is known.

  Moreover, in order to suppress the deformation | transformation by drying and sintering of a three-dimensional molded item, the technique which correct | amends the printing data used for modeling of a three-dimensional molded item is disclosed using the variation | change_quantity by drying, sintering, etc. of a molded item. Yes. And the technique of modeling a three-dimensional molded item using the corrected printing data is disclosed.

  However, when the three-dimensional model is modeled by repeatedly executing the above-described series of processes for discharging the modeling liquid onto the powder layer, the spatial ratio of the modeled three-dimensional model may be uneven. However, with the conventional technology, it has been difficult to suppress non-uniformity in the spatial ratio of the three-dimensional structure.

  In order to solve the above-described problems and achieve the object, the present invention provides a supply unit for supplying powder, and the surface of the supplied powder is flattened by leveling in a first direction, whereby the powder A flattening part for forming a layer, a discharge part for discharging a modeling liquid to a position corresponding to a modeling object on the surface of the powder layer to form dots, supply of the powder, and formation of the powder layer And control of forming the three-dimensional model corresponding to the modeling object by controlling the supply unit, the flattening unit, and the discharge unit so as to repeat a series of processes of discharging the modeling liquid. A first direction, a third direction orthogonal to the first direction and coinciding with the thickness direction of the powder layer in the three-dimensional structure, the first And at least two of a second direction orthogonal to the third direction As the direction of the voidage matching, with an adjusting unit for adjusting at least one of the discharge gap in the discharge amount and the modeling liquid in the shaping mixture, a stereolithographic apparatus.

  According to the present invention, it is possible to suppress the non-uniformity of the space ratio of the three-dimensional structure.

FIG. 1 is a schematic diagram illustrating an example of a three-dimensional modeling apparatus. FIG. 2 is a schematic diagram illustrating an example of a flow of a series of processes. Drawing 3 is a mimetic diagram showing an example of the flow of modeling of a solid modeling thing. FIG. 4 is a schematic diagram illustrating an example of a three-dimensional structure. FIG. 5 is a schematic diagram illustrating an example of the space ratio of the XY plane of the three-dimensional structure. FIG. 6 is an explanatory diagram illustrating an example of the space ratio in the third direction of the three-dimensional structure. FIG. 7 is a functional block diagram of the three-dimensional modeling apparatus. FIG. 8 is a schematic diagram illustrating an example of a data structure of the condition information. FIG. 9 is a diagram illustrating an example of a data configuration of management information. FIG. 10 is a flowchart illustrating an example of the procedure of the modeling process. FIG. 11 is a hardware configuration diagram of the information processing apparatus.

  Embodiments of a three-dimensional modeling apparatus, a three-dimensional modeling method, a three-dimensional modeling program, and an information processing apparatus will be described in detail below with reference to the accompanying drawings.

  FIG. 1 is a schematic diagram illustrating an example of the three-dimensional modeling apparatus 10.

  The three-dimensional modeling apparatus 10 includes a modeling apparatus 12, an information processing apparatus 14, and a UI (user interface) unit 36. The modeling apparatus 12 and the UI unit 36 are connected to the information processing apparatus 14 so as to be able to exchange data and signals.

  The UI unit 36 receives various operation instructions from the user and displays various information. The UI unit 36 is, for example, a keyboard, a display with a touch panel, or the like. The UI unit 36 may have a configuration in which an operation unit that receives an operation instruction from a user and a display unit that displays various types of information are separated.

  The information processing apparatus 14 controls the modeling apparatus 12. The modeling apparatus 12 models a three-dimensional modeled object under the control of the information processing apparatus 14. The modeling apparatus 12 includes a supply unit 18, a flattening unit 16, a discharge unit 26, and a modeling unit 22.

  The supply unit 18 stores the powder 20 to be supplied to the modeling unit 22. In the present embodiment, the supply unit 18 and the modeling unit 22 are continuously arranged in a first direction (refer to the arrow X direction in FIG. 1, hereinafter sometimes referred to as the first direction X). Yes. In the present embodiment, the first direction X is described as being one direction on the horizontal plane. Further, in the present embodiment, the first direction X is a direction in which the supply unit 18 side is the upstream side and the modeling unit 22 side is the downstream side among the supply unit 18 and the modeling unit 22 that are continuously arranged. It is assumed that

  The supply unit 18 includes a supply tank 18A, a stage 18C, and a support member 18B. The supply tank 18A stores the powder 20 inside. Supply tank 18A is open in the anti-vertical direction (in the direction of arrow ZA in FIG. 1). In the present embodiment, the supply tank 18 </ b> A has an opening having the same shape and the same area as the opening of the modeling tank 22 </ b> A (detailed later) in the modeling unit 22, and is continuous in the first direction X with respect to the modeling unit 22. Are arranged.

  The supply tank 18A is separately provided so that a predetermined amount of the powder 20 is stored in the supply tank 18A when the storage amount of the powder 20 in the supply tank 18A is equal to or less than a predetermined amount. Powder 20 is supplied from the powder supply mechanism.

  The stage 18C constitutes a bottom portion inside the supply tank 18A. The stage 18C is supported by the support member 18B. The support member 18B supports the stage 18C so as to be movable in a direction orthogonal to the horizontal direction (refer to the arrow Z direction in FIG. 1, hereinafter referred to as the third direction Z).

  In the present embodiment, the support member 18B moves the stage 18C by a predetermined amount in the anti-vertical direction (see the arrow ZA direction in FIG. 1) under the control of the information processing device 14. Accordingly, a part of the powder 20 stored in the supply tank 18A protrudes from the opening side of the supply tank 18A. When supplying powder from the powder supply mechanism to the supply tank 18A, the support member 18B can move the stage 18C in the vertical direction (in the direction of arrow ZB in FIG. 1) under the control of the information processing device 14. Good.

  A three-dimensional model is modeled in the modeling unit 22. The modeling unit 22 includes a modeling tank 22A, a support member 22B, and a stage 22C.

  The modeling tank 22A stores the powder 20 supplied from the supply unit 18. A three-dimensional model is modeled in the modeling tank 22A by discharging the modeling liquid 28 to the powder 20 stored in the modeling tank 22A. The modeling tank 22A opens in the anti-vertical direction (the direction of the arrow ZA in FIG. 1). The opening of the modeling tank 22A is continuously arranged in the first direction X with respect to the opening of the supply tank 18A.

  The stage 22C constitutes the bottom part inside the modeling tank 22A. The stage 22C is supported by the support member 22B. The support member 22B supports the stage 22C so as to be movable in the third direction Z.

  In the present embodiment, the support member 22B moves the stage 22C by a predetermined amount in the vertical direction (refer to the arrow ZB direction in FIG. 1) under the control of the information processing device 14. Thus, a space for holding the powder 20 newly supplied from the supply unit 18 is formed on the opening side of the modeling tank 22A.

  The flattening portion 16 is a direction orthogonal to the first direction X (the Y direction in FIG. 1, hereinafter, the second direction) in the opening of the supply tank 18A, which is the arrangement direction of the supply portion 18 and the shaping portion 22. It is a member that is long in the direction Y). The flattening portion 16 is, for example, a columnar shape or a plate shape.

  The flattening portion 16 is supported so as to be capable of reciprocating toward the upstream side and the downstream side in the first direction X. The flattening unit 16 reciprocates toward the upstream side and the downstream side in the first direction X under the control of the information processing device 14. In the present embodiment, the flattening portion 16 has a columnar shape, and a case where the flattening portion 16 moves in the first direction X while rotating around the longitudinal direction (second direction Y) as an axis of rotation will be described as an example. The moving speed (flattening speed), moving direction, and rotation direction of the flattening unit 16 are controlled by the control of the information processing device 14 and are variable.

  The flattening unit 16 sets the upstream side in the first direction X from the supply unit 18 as an initial position, and moves in the first direction X toward the downstream side in the first direction X under the control of the information processing device 14. . Thereby, the powder 20 protruding from the opening of the supply tank 18 </ b> A is supplied to the modeling unit 22 side and supplied to the modeling unit 22.

  Further, the flattening unit 16 moves downstream in the first direction X under the control of the information processing device 14. Thereby, the flattening unit 16 flattens the surface of the powder 20 supplied to the modeling unit 22 by leveling in the first direction X, and forms a powder layer 24 having a layer thickness J in the modeling tank 22A. To do.

  The flattening unit 16 moves from the upstream side in the first direction X from the supply unit 18 to the downstream side in the first direction X from the modeling unit 22, thereby forming the powder layer 24. 1 moves upstream in the direction X and returns to the reference position.

  In the present embodiment, the supply unit 18 stores the powder 20 supplied to the modeling unit 22, and the powder stored in the supply unit 18 as the planarization unit 16 moves in the first direction X. The case where the body 20 is supplied to the modeling part 22 and the powder layer 24 is formed will be described. However, the supply unit 18 supplies the powder 20 to the modeling unit 22, and the powder layer 24 is formed by the leveling unit 16 leveling the surface of the powder 20 supplied to the modeling unit 22. Also good.

  The discharge unit 26 discharges the modeling liquid 28 to the position corresponding to the modeling target on the surface of the powder layer 24 to form the dots 30.

  The discharge unit 26 includes a mechanism using a known inkjet method. The discharge unit 26 is supported so as to be movable in each of the first direction X, the second direction Y, and the third direction Z. In addition, the color of the modeling liquid 28 which the discharge part 26 discharges is not limited. Moreover, the color of the modeling liquid 28 which the discharge part 26 discharges may be one type (one color), and may be multiple types (multiple colors).

  The discharge part 26 forms the dot 30 by discharging the modeling liquid 28 to the position according to the modeling object in the surface of the powder layer 24 by control of the control part 14C. Specifically, the discharge unit 26 forms dots 30 by discharging droplets of the modeling liquid 28 from each of the plurality of nozzles.

  The modeling apparatus 12 may be configured to further include a maintenance mechanism that maintains the discharge unit 26. The maintenance mechanism may be a known mechanism that maintains the inkjet head.

  The information processing apparatus 14 repeats a series of processes of supplying the powder 20, forming the powder layer 24, and discharging the modeling liquid 28 in this order, so that the supply unit 18, the flattening unit 16, and the discharge unit 26. By controlling, a three-dimensional object corresponding to the object to be formed is formed.

  Here, the powder 20 has a configuration in which the surface of a particulate or powdery substrate is covered with a coating layer (details will be described later). The modeling liquid 28 is a liquid having a function of solidifying after the coating layer is dissolved (details will be described later).

  For this reason, in the powder layer 24, the powder 20 in the region where the modeling liquid 28 is discharged and the dots 30 are formed is bonded to each other by dissolving at least a part of the coating layer of the powder 20. Then, the formation of the powder layer 24 and the formation of the dots 30 by the modeling liquid 28 are repeated, so that the dot areas formed by the dots 30 formed on the powder layers 24 are continuously solidified to be modeled as a three-dimensional modeled object. The Rukoto.

  FIG. 2 is a schematic diagram showing an example of a flow of a series of processes of supplying the series of powders 20, forming the powder layer 24, and discharging the modeling liquid 28. This series of processing is performed under the control of the information processing apparatus 14.

The powder 20 is supplied to the modeling unit 22 by the supply unit 18 and the planarization unit 16, and is planarized in the first direction X by the planarization unit 16, for example, the first powder layer 24 (powder) The body layer 24 ₁ ) is formed (see FIG. 2A).

Then, the discharge unit 26, the surface of the powder layer 24 _1, ejecting the shaped solution 28 to a position corresponding to the shaped object (FIG. 2 (A)). Thus, on the powder layer 24 _1, dot 30 is formed by molding liquid 28 (see FIG. 2 (B)).

  Next, under the control of the information processing device 14, the support member 22B moves the stage 22C by a predetermined amount in the vertical direction (arrow ZB direction) (see FIG. 2C). Accordingly, a space for holding the powder 20 newly supplied from the supply unit 18 is formed on the opening side of the modeling tank 22A. The predetermined amount may be an amount equal to or greater than the layer thickness J of the powder layer 24 to be formed.

  The layer thickness J of the powder layer 24 is, for example, a thickness at which one drop of the modeling liquid 28 discharged from the discharge unit 26 penetrates from one end to the other end of the one powder layer 24 in the thickness direction. That's fine. The layer thickness J varies depending on the type of the powder 20, the type of the modeling liquid 28, the discharge characteristics of the discharge unit 26, and the like. The layer thickness J is, for example, several tens to 100 μm.

  Next, under the control of the information processing device 14, the support member 18B moves the stage 18C by a predetermined amount in the anti-vertical direction (arrow ZA direction). The predetermined amount may be an amount that allows the powder 20 of an amount necessary for forming the powder layer 24 having the layer thickness J to be formed on the modeling portion 22 to protrude toward the opening side of the supply tank 18A. Thereby, a part of the powder 20 stored in the supply tank 18A protrudes from the opening side of the supply tank 18A (see FIG. 2C).

  Then, the flattening unit 16 moves in the first direction X from the initial position upstream in the first direction X from the supply unit 18 toward the downstream side in the first direction X under the control of the information processing device 14. To do. Thereby, the powder 20 protruding from the opening of the supply tank 18A is supplied to the modeling unit 22 side and supplied to the modeling unit 22 (see FIGS. 2C and 2D).

Further, the flattening unit 16 moves to the downstream side in the first direction X. Thus, flattening unit 16 is planarized by leveling the surface of the powder 20 supplied to the shaping part 22 in the first direction X, to form a powder layer 24 ₂ having a thickness of J (FIG. 2 (D)). Thus, on the powder layer 24 ₁ formed of dots 30 by a series of processes of previous powder layer 24 ₂ is laminated by a series of processes of this time.

  And the information processing apparatus 14 controls the modeling apparatus 12 so that the process of FIG. 2 (A)-FIG.2 (D) may be repeated. In addition, the information processing apparatus 14 performs the powder layer 24 by the previous series of processes (the series of processes in this order in FIGS. 2C, 2D, 2A, and 2B). Before the surface of the dots 30 formed on the surface is dried, a series of processes is performed so that a new powder layer 24 is formed and the modeling liquid 28 is discharged onto the powder layer 24 by the following series of processes. Controls the timing of repetition.

  By controlling the modeling apparatus 12 so that the information processing apparatus 14 repeats the above-described series of processing, the powder layer 24 in which the dots 30 are formed is stacked on the modeling unit 22, and the formation of the dots 30 in the powder layer 24 is performed. The formed areas are combined to form a three-dimensional structure 32.

  Next, the flow of modeling the three-dimensional modeled object 32 will be described in more detail. Drawing 3 is a mimetic diagram showing an example of the flow of modeling of a solid modeling thing.

When the modeling liquid 28 is discharged onto the powder layer 24 ₁ formed by the planarization unit 16, dots 30 ₁ (dots 30) are formed on the powder layer 24 ₁ (see FIG. 3A). Then, further formed powder layer 24 ₂ on the powder layer 24 ₁ formed of dots 30 ₁ (see FIG. 3 (B)), a powder layer 24 ₂ into shaped liquid 28 is ejected by dot 30 ₂ Is formed (see FIG. 3C).

Furthermore, the powder layer 24 ₃ is formed on the powder layer 24 ₂ formed of dots 30 _2, shaped liquid 28 to the powder layer 24 ₃ is discharged by dots 30 ₃ is formed (FIG. 3 (D )reference).

The powder 20 contained in the dots 30 (dots 30 ₁ to 30 ₃ ) by the modeling liquid 28 discharged to each of the powder layers 24 (powder layers 24 ₁ to 24 ₃ ) is powder 20. At least a part of the coating layer of the resin dissolves and bonds to each other. For this reason, before the surface of the dot 30 formed on the powder layer 24 is dried, the formation of the next powder layer 24 and the formation of the dot 30 on the powder layer 24 are performed. The dot area formed by the dots 30 formed on the layer 24 is a continuously solidified area. This continuously solidified area (in FIG. 3, the area formed by the dots 30 ₁ to 30 ₃ ) is the three-dimensional structure 32.

  3A to 3D show an example in which one dot 30 is formed so as to overlap in the thickness direction of the powder layer 24 (third direction Z). However, a plurality of dots 30 may be formed along the horizontal direction of the powder layer 24 (a plane in the first direction X and the second direction Y) according to the modeling object.

FIG. 4 is a schematic diagram illustrating an example of the three-dimensional structure 32 formed by the three-dimensional modeling apparatus 10. The three-dimensional structure 32 is discharged from the modeling liquid 28 in each powder layer 24 by discharging the modeling liquid 28 to each of the plurality of powder layers 24 (powder layers 24 ₁ to 24 ₅ ). It is shaped by combining the dot areas of the dots 30. For this reason, the three-dimensional modeled object 32 is formed by leveling the plurality of powder layers 24 (powder layers 24 ₁ to 24 ₅ ) formed in the first direction X in the thickness direction of the powder layer 24. Are formed in the third direction Z, and are formed by dots 30 formed by the modeling liquid 28 discharged to each powder layer 24.

  For this reason, conventionally, at least one space ratio in the first direction X, the second direction Y, and the third direction Z in the three-dimensional modeled object 32 that has been formed is different from the space ratio in the other directions. It may be a thing.

  The space ratio indicates a ratio of space per unit area. In other words, the space ratio is a value obtained by subtracting the density from 100%. That is, a space ratio of 10% has the same meaning as a density of 90%. The space ratio can be obtained, for example, by observing a cross section of the three-dimensional structure 32 with an electron microscope or the like.

  FIG. 5 is a schematic diagram illustrating an example of the space ratio of the XY plane in the three-dimensional structure 32 in the first direction X and the second direction Y.

  At the time of modeling the three-dimensional model 32, the planarizing unit 16 levels the powder layer 24 in the first direction X, thereby forming the powder layer 24. For this reason, the space ratio in the first direction X and the space ratio in the second direction Y in the three-dimensional modeled object 32 that is formed may be different.

  For example, the spatial ratio in the first direction X, which is the direction in which the flattening portion 16 leveles the powder layer 24, in the three-dimensional structure 32 may be larger than that in the second direction Y. The space ratio and the difference in the space ratio depend on, for example, modeling conditions (details will be described later).

  FIG. 6 is an explanatory diagram illustrating an example of the spatial ratio in the third direction Z in the three-dimensional structure 32. In the present embodiment, the space ratio in the third direction Z indicates the space ratio in the third direction Z of the first region A corresponding to the layer of the powder layer 24 in the three-dimensional structure 32. The interlayer of the powder layer 24 is a region between the powder layers 24 adjacent in the thickness direction of the powder layer 24.

  At the time of modeling the three-dimensional model 32, a series of processes for forming the dots 30 by discharging the modeling liquid 28 is repeated each time one powder layer 24 is formed. For this reason, the space ratio of the first region A corresponding to the layer of the powder layer 24 (the layer of the powder layer 24 adjacent in the third direction Z) in the three-dimensional modeled object 32 that has been modeled is in other regions. It may be larger than that.

  For this reason, conventionally, the space in at least one direction among the space ratio in the first direction X, the space ratio in the second direction Y, and the space ratio in the third direction Z in the three-dimensional modeled object 32 that has been formed. The rate may be inconsistent with other spatial factors.

  Therefore, in the three-dimensional modeling apparatus 10 of the present embodiment, the information processing apparatus 14 performs specific control in order to adjust the spatial rate of the three-dimensional modeled object 32.

  FIG. 7 is a functional block diagram of the three-dimensional modeling apparatus 10 of the present embodiment. The three-dimensional modeling apparatus 10 includes a UI unit 36, a storage unit 38, an information processing apparatus 14, and a modeling apparatus 12. The UI unit 36, the storage unit 38, and the modeling apparatus 12 are connected to the information processing apparatus 14 so as to be able to exchange data and signals. The storage unit 38 stores various data.

  The information processing apparatus 14 is a computer that includes a CPU (Central Processing Unit) and the like, and controls the entire three-dimensional modeling apparatus 10. Note that the information processing apparatus 14 may be configured other than a general-purpose CPU. For example, the information processing apparatus 14 may be configured with a circuit or the like.

  The information processing apparatus 14 includes a reception unit 14A, an acquisition unit 14B, and a control unit 14C. Part or all of the reception unit 14A, the acquisition unit 14B, and the control unit 14C may be realized by causing a processing device such as a CPU to execute a program, that is, by software, an IC (Integrated Circuit), or the like. It may be realized by hardware, or may be realized by using software and hardware together.

  The control unit 14C controls the supply unit 18, the flattening unit 16, and the discharge unit 26 so as to repeat a series of processes of supplying the powder 20, forming the powder layer 24, and discharging the modeling liquid 28. . The three-dimensional model 32 corresponding to the modeling target is modeled by the control of the control unit 14C.

  Specifically, the control unit 14C generates print data capable of modeling the three-dimensional modeled object 32 by the modeling apparatus 12 from the image data indicating the modeling target. A known method may be used to generate the print data. The control unit 14C may acquire image data from an external device or the like via a communication line, or may acquire image data from the storage unit 38. Then, the control unit 14C may generate print data using the acquired image data.

  The control unit 14C uses the print data to control the modeling apparatus 12 so as to repeat the series of processes according to the print data, thereby modeling the three-dimensional modeled object 32 corresponding to the modeling target. 12 is controlled.

  Specifically, the control unit 14C discharges the modeling liquid 28 to a position corresponding to the modeling object on the surface of the powder layer 24 in accordance with the print data for forming the modeling object in the series of processes. Then, the ejection unit 26 is controlled to form the dots 30. Thereby, the modeling liquid 28 is discharged to the area | region according to the modeling target object shown by printing data in each of the some powder layer 24 laminated | stacked, and the three-dimensional molded item 32 will be modeled.

  Here, when the control unit 14C controls the modeling apparatus 12 according to the print data in a series of processes, the spatial ratio of the three-dimensional modeled object 32 to be modeled may be uneven as described above (FIG. 5 and FIG. 6).

  Specifically, the spatial rate of the three-dimensional modeled object 32 that is modeled by discharging the modeling liquid 28 according to the print data may vary depending on the modeling conditions.

  The modeling conditions include, for example, at least one of a flattening speed of the powder layer 24 by the flattening unit 16, a discharge environment of the modeling liquid 28, a layer thickness per layer of the powder layer 24, and a type of the powder 20. .

  The flattening speed of the powder layer 24 by the flattening portion 16 is the moving speed in the first direction X of the flattening portion 16 when the powder layer 24 is leveled to form the powder layer 24. The spatial rate of the first direction X with respect to the second direction Y of the three-dimensional structure 32 varies depending on the flattening speed.

  The discharge environment of the modeling liquid 28 is temperature and humidity when the discharge unit 26 discharges the modeling liquid 28 in the above series of processes.

  The types of the powder 20 include the type of the coating layer that covers the substrate constituting the powder layer 24, the thickness of the coating layer, the coverage of the substrate by the coating layer, the average particle diameter of the powder 20, and the like.

  Therefore, in the present embodiment, control unit 14C includes adjustment unit 14D. The adjusting unit 14D is configured so that the volume of the modeling liquid 28 in the three-dimensional structure 32 is equal to the space ratio in at least two directions of the first direction X, the second direction Y, and the third direction Z. At least one of the discharge intervals of the modeling liquid 28 is adjusted. Note that “the space ratios match” indicates that the difference in the space ratios is within a range of ± 5%.

  As described above, the first direction X is a direction in which the flattening portion 16 levels the powder layer 24. The third direction Z is a direction that is orthogonal to the first direction X and coincides with the thickness direction of the powder layer 24. The second direction Y is a direction orthogonal to the first direction X and the third direction Z. An XY plane according to the first direction X and the second direction Y coincides with the surface of the powder layer 24.

  In the present embodiment, the adjustment unit 14D performs printing so that the space ratios in at least two directions of the first direction X, the second direction Y, and the third direction Z in the three-dimensional structure 32 coincide. By correcting the data, at least one of the discharge amount of the modeling liquid 28 and the discharge interval of the modeling liquid 28 is adjusted.

  It is preferable that the adjustment unit 14D adjusts at least one of the discharge amount of the modeling liquid 28 and the discharge interval of the modeling liquid 28 by using the spatial information of the modeling target that is the three-dimensional modeled object 32 to be modeled.

  The spatial information includes at least a space ratio in the first direction X of the modeling object and a space ratio in the second direction Y of the modeling object. Note that the spatial information includes a space ratio in the first direction X of the modeling object, a space ratio in the second direction Y of the modeling object, and a first region corresponding to the interlayer of the powder layer 24 in the modeling object. It is preferable that the space ratio in the third direction Z of A is included.

  Spatial information may be acquired by the acquisition unit 14B. The acquisition unit 14B acquires spatial information. The acquisition unit 14B may acquire the spatial information from the UI unit 36 or may acquire the spatial information from the storage unit 38. The acquisition unit 14B may acquire spatial information from an external device via a communication line.

  For example, the user operates the UI unit 36 to input spatial information of a modeling target that is the three-dimensional modeling target 32 to be modeled. In this case, the acquisition unit 14B acquires the spatial information from the UI unit 37.

  Further, spatial information may be stored in advance in the storage unit 38, and the acquisition unit 14B may acquire the spatial information by reading the spatial information from the storage unit 38.

  As described above, the space ratio of the three-dimensional structure 32 varies depending on the modeling conditions. For this reason, it is preferable that the acquisition part 14B acquires the spatial information according to modeling conditions.

  In this case, the storage unit 38 stores in advance condition information that associates the modeling information with the spatial information. FIG. 8 is a schematic diagram illustrating an example of a data configuration of the condition information 40.

  The condition information 40 is a correspondence between modeling conditions and spatial information. FIG. 8 shows a case where the spatial information includes a spatial ratio in the first direction X, a spatial ratio in the second direction Y, and a spatial ratio in the third direction Z.

  In the three-dimensional modeling apparatus 10, for example, the three-dimensional model 32 is modeled under each of different modeling conditions. Then, the user measures the spatial ratios of the first direction X, the second direction Y, and the third direction Z in each of the three-dimensional structure 32 using an electron microscope or the like. Then, the user operates the UI unit 36 to register the spatial information as the measurement result in the UI unit 36 in association with the corresponding modeling condition. Thereby, the memory | storage part 38 should just memorize | store the condition information 40 previously.

  Returning to FIG. 7, the receiving unit 14 </ b> A receives the modeling conditions. For example, the user operates the UI unit 36 to input the modeling conditions for the three-dimensional modeled object 32 (modeling target object) to be modeled. The receiving unit 14A receives a modeling condition from the UI unit 36. Regarding the items that can be detected by the sensor among the modeling conditions, the receiving unit 14A may receive the modeling conditions from the sensor. In this case, what is necessary is just to set it as the structure which provided the well-known sensor which can detect modeling conditions in the three-dimensional modeling apparatus 10. FIG.

  And the acquisition part 14B should just acquire space information by reading the space information corresponding to the modeling conditions received in 14 A of reception parts from the condition information 40 (refer FIG. 8).

  For example, the adjustment unit 14D performs the first operation so that the spatial ratio in the first direction X and the spatial ratio in the second direction Y indicated by the spatial information acquired by the acquisition unit 14B become the predetermined reference spatial ratio. At least one of the discharge interval of the modeling liquid 28 in the direction X, the discharge interval of the modeling liquid 28 in the second direction Y, and the discharge amount per discharge of the modeling liquid 28 is adjusted.

  The reference space ratio may be set in advance and stored in the storage unit 38. The reference space ratio may be appropriately changed by an operation instruction of the UI unit 36 by the user.

  As the reference space ratio, for example, a space ratio necessary for realizing the predetermined strength of the three-dimensional structure 32 to be formed may be determined in advance.

  In addition, when the spatial information includes the spatial rate in the first direction X and the spatial rate in the second direction Y, the reference spatial rate is the spatial rate in the first direction X and the spatial rate in the second direction Y. Of these, the smaller space ratio is preferable. For example, when the spatial rate in the first direction X included in the spatial information is larger than the second direction Y, the spatial rate in the second direction Y included in the spatial information is preferably set as the reference spatial rate.

  In addition, when the spatial information includes a spatial rate in the first direction X, a spatial rate in the second direction Y, and a spatial rate in the third direction Z, the reference spatial rate is determined based on these spatial rates. Of these, the smallest space ratio is preferable.

  For example, when the space ratio in the second direction Y is the smallest among the space ratio in the first direction X, the space ratio in the second direction Y, and the space ratio in the third direction Z, the second direction Y It is preferable that the space ratio is a reference space ratio. Note that any one of the spatial ratio in the first direction X and the second direction Y indicated by the spatial information and the spatial ratio in the third direction Z may be determined as the reference spatial ratio. Good.

  It is assumed that the spatial information includes a spatial ratio in the first direction X and a spatial ratio in the second direction Y. In this case, the adjustment unit 14D grasps the space ratio in one of the first direction X and the second direction Y, which is indicated by the space information, in one direction with a small space ratio as the reference space ratio. For example, it is assumed that the space ratio in the first direction X is larger than the space ratio in the second direction Y. In this case, adjustment part 14D grasps | ascertains the space rate of the 2nd direction Y which is a direction with a small space rate as a reference | standard space rate.

  Then, the adjustment unit 14D compares the dot interval when the dots 30 are formed in succession in one direction (for example, the second direction Y having a small space ratio) in the other direction (for example, the space ratio). At least one of the discharge interval and the discharge amount of the modeling liquid 28 is adjusted so that the dot interval when the dots 30 are formed continuously in the first direction X) with a large.

  For example, the adjustment unit 14D adjusts the discharge interval of the modeling liquid 28 to be discharged in the other direction (for example, the first direction X having a large space ratio) to be narrower than the interval indicated by the print data, and At least one of adjustment to increase the ejection amount from the amount indicated in the print data is performed. What is necessary is just to adjust the amount which narrows a dot space | interval, and discharge amount according to spatial information.

  That is, the adjustment unit 14D corrects the print data so that such a discharge amount and a discharge interval are realized.

  As a result, the adjustment unit 14D adjusts the space ratio in the first direction X and the space ratio in the second direction Y in the three-dimensional structure 32 to be the reference space ratio.

  Note that the adjusting unit 14D has a spatial ratio in the third direction Z indicated by the spatial information (that is, a spatial ratio in the third direction Z of the first region A corresponding to the layer of the powder layer 24 in the modeling object). However, it is preferable to further adjust so as to coincide with the reference space ratio. In this case, in the series of processes, the adjustment unit 14D further discharges the modeling liquid 28 with a discharge amount corresponding to the spatial information onto the dots 30 discharged according to the print data on the surface of the powder layer 24. The discharge amount of the modeling liquid 28 is adjusted. By this adjustment, the adjustment unit 14D further adjusts so that the space ratio in the third direction Z becomes the reference space ratio.

  For example, the spatial information includes a space ratio in the first direction X of the modeling object, a space ratio in the second direction Y of the modeling object, and a space ratio in the third direction Z (that is, powder in the modeling object). It is assumed that the first region A corresponds to the space between the body layers 24 in the third direction Z). In this case, the adjustment unit 14D determines the smallest space ratio among the space ratio in the first direction X, the space ratio in the second direction Y, and the space ratio in the third direction Z indicated by the spatial information as the reference space. To grasp as a rate. For example, it is assumed that the adjustment unit 14D has grasped the space ratio in the second direction Y as the reference space ratio.

  And adjustment part 14D adjusts the space rate of the 1st direction X and the 2nd direction Y like the above. Then, in the series of processes, the adjustment unit 14D further forms the modeling liquid 28 on the dots 30 ejected according to the print data on the surface of the powder layer 24 so that the modeling liquid 28 is ejected in accordance with the spatial information. The discharge amount of the liquid 28 is adjusted. By this adjustment, the adjustment unit 14D further adjusts so that the space ratio in the third direction Z becomes the reference space ratio.

  For this reason, by adjustment of the adjusting unit 14D, dots 30 corresponding to the print data are formed in each powder layer 24, and between the powder layers 24, the previously formed powder layer 24 A modeling liquid 28 is further discharged onto the dots 30.

  What is necessary is just to adjust the discharge amount of the modeling liquid 28 which adjustment part 14D discharges between the layers of each powder layer 24 according to spatial information.

  That is, the adjustment unit 14D corrects the print data so that such a discharge amount and a discharge interval are realized.

  Accordingly, the adjustment unit 14D causes the spatial ratio in the first direction X, the spatial ratio in the second direction Y, and the spatial ratio in the third direction Z to be the reference spatial ratio in the three-dimensional structure 32. Adjust to.

  For the adjustment value of the discharge amount and the discharge interval according to the spatial information, management information defining the adjustment value may be stored in the storage unit 38 in advance. Then, the adjustment unit 14D may correct the print data by adjusting the discharge amount and the discharge interval according to the adjustment value corresponding to the space ratio defined in the management information.

  FIG. 9 is a diagram illustrating an example of a data configuration of the management information 50.

  For example, the storage unit 38 stores the management information 50 corresponding to each reference space ratio having a different value in advance. FIG. 9 shows an example of the data configuration of the management information 50 corresponding to the reference space ratio 10%.

  The management information 50 includes first management information 46 (see FIG. 9A) and second management information 48 (see FIG. 9B).

  The first management information 46 is data in which the space ratio and the adjustment value of the discharge interval are associated with each other. The spatial rate defined in the first management information 46 is a spatial rate in a direction indicating a spatial rate different from the reference spatial rate among the spatial rate in the first direction X and the spatial rate in the second direction Y. It is.

  For this reason, in the case where the smaller one of the first direction X and the second direction Y is used as the reference spatial rate, the spatial rate defined in the first management information 46 is the higher spatial rate. It indicates the spatial ratio in the direction (for example, the spatial ratio in the first direction X).

  In other words, the space ratio defined in the first management information 46 indicates the space ratio in the direction in which the discharge interval is adjusted among the first direction X and the second direction Y.

  For example, when the space ratio in the direction in which the discharge interval is adjusted (for example, the first direction X having a large space ratio) is 30%, the adjustment unit 14D sets the discharge interval of the modeling liquid 28 in the first direction X. Then, at least one of the discharge interval and the discharge amount is adjusted so as to be reduced to an interval of 60% with respect to the interval indicated in the print data. In other words, the adjustment unit 14D corrects the print data so that the interval between the dots 30 formed in the first direction X is such an interval.

  In this case, the adjusting unit 14D sets the discharge interval when the dots 30 are continuously formed in the first direction X to the discharge interval when the dots 30 are recorded continuously in the second direction Y. The print data may be corrected so that the interval is 60%.

  Further, for example, when the space ratio in the target direction for adjusting the discharge interval (for example, the first direction X having a large space ratio) is 20%, the adjusting unit 14D causes the modeling liquid 28 in the first direction X to be adjusted. At least one of the discharge interval and the discharge amount is adjusted so that the discharge interval is narrowed to 80% of the interval indicated in the print data. In other words, the adjustment unit 14D corrects the print data so that the interval between the dots 30 formed in the first direction X is such an interval.

  In this case, the adjusting unit 14D sets the discharge interval when the dots 30 are continuously formed in the first direction X to the discharge interval when the dots 30 are recorded continuously in the second direction Y. The print data may be corrected so that the interval is 80%.

  The second management information 48 is data in which the space ratio in the third direction Z and the discharge amount of the modeling liquid 28 discharged between the powder layers 24 are associated with each other. FIG. 9B shows an example of the data configuration of the second management information 48 when the reference space ratio is 10%.

  For example, when the space ratio in the third direction Z is 30%, the adjusting unit 14D discharges the amount used to form the dots 30 on the dots 30 formed on the powder layer 24 according to the print data. After the molding liquid 28 is discharged twice, the print data is corrected so that the next powder layer 24 is formed.

  For example, when the space ratio in the third direction Z is 20%, the adjustment unit 14D is used to form the dots 30 on the dots 30 formed on the powder layer 24 according to the print data. After the discharge amount of the modeling liquid 28 is discharged once, the print data is corrected so that the next powder layer 24 is formed.

  As described above, the adjustment unit 14D corrects the print data according to the spatial information, so that at least two of the first direction X, the second direction Y, and the third direction Z in the three-dimensional structure 32 are obtained. At least one of the discharge amount of the modeling liquid 28 and the discharge interval of the modeling liquid 28 is adjusted so that the spatial ratio in the direction matches.

  Next, the procedure of the modeling process performed with the information processing apparatus 14 of this Embodiment is demonstrated. FIG. 10 is a flowchart illustrating an example of the procedure of the modeling process.

  First, the control unit 14C acquires image data indicating a modeling target (step S200). Next, the control unit 14C generates print data from the image data acquired in step S200 (step S202).

  Next, the receiving unit 14A receives the modeling conditions (step S204). The acquisition unit 14B acquires the spatial information by reading the spatial information corresponding to the modeling condition received in step S204 from the condition information 40 of the storage unit 38 (step S206).

  Next, the adjustment unit 14D grasps the reference space ratio (step S208). In this processing routine, it is assumed that the spatial information includes a spatial ratio in the first direction X, a spatial ratio in the second direction Y, and a spatial ratio in the third direction Z. In this case, the adjustment unit 14D determines the smallest space ratio among the space ratio in the first direction X and the second direction Y indicated by the space information and the space ratio in the third direction Z as the reference space. To grasp as a rate.

  As described above, the adjustment unit 14D may grasp a predetermined space ratio as the reference space ratio. The adjusting unit 14D is configured so that the adjusting unit 14D has one of the space ratio in the first direction X, the second direction Y, and the space ratio in the third direction Z indicated by the spatial information. The space ratio may be determined as the reference space ratio.

  Next, the adjustment unit 14D determines an adjustment value for the discharge interval in the first direction X (step S210). The adjustment unit 14D adjusts the ejection interval in the first direction X so that the spatial ratio in the first direction X included in the spatial information acquired in step S206 becomes the reference spatial ratio grasped in step S208. Determine the adjustment value for.

  For example, the adjustment unit 14D reads the management information 50 (see FIG. 9) corresponding to the reference spatial rate grasped in step S208 from the storage unit 38. Then, the adjustment unit 14D reads the adjustment value of the discharge interval corresponding to the space ratio that matches the space ratio in the first direction X from the first management information 46 included in the read management information 50, thereby adjusting the adjustment value. What is necessary is just to determine a value.

  Next, the adjustment unit 14D determines an adjustment value for the ejection interval in the second direction Y (step S212). The adjusting unit 14D adjusts the ejection interval in the second direction Y so that the spatial ratio in the second direction Y included in the spatial information acquired in step S206 becomes the reference spatial ratio grasped in step S208. Determine the adjustment value for.

  For example, the adjustment unit 14D reads the management information 50 (see FIG. 9) corresponding to the reference spatial rate grasped in step S208 from the storage unit 38. Then, the adjusting unit 14D reads the adjustment value of the discharge interval corresponding to the space ratio that matches the space ratio in the second direction Y from the first management information 46 included in the read management information 50, thereby adjusting the adjustment value. What is necessary is just to determine a value.

  Next, the adjusting unit 14D determines the discharge amount of the modeling liquid 28 to be discharged between the powder layers 24 corresponding to the space ratio in the third direction Z (Step S214).

  The adjustment unit 14D discharges the modeling liquid 28 between the powder layers 24 so that the spatial ratio in the third direction Z included in the spatial information acquired in step S206 becomes the reference spatial ratio grasped in step S208. The amount of discharge is determined.

  For example, the adjustment unit 14D reads the management information 50 (see FIG. 9) corresponding to the reference spatial rate grasped in step S208 from the storage unit 38. Then, the adjustment unit 14D determines the discharge amount of the modeling liquid 28 to be discharged between the powder layers 24 corresponding to the spatial ratio in the third direction Z from the second management information 48 included in the read management information 50. By reading, the amount of discharge between the powder layers 24 may be determined.

  Next, the adjusting unit 14D adjusts the discharge interval adjustment value in the first direction X determined in step S210, the discharge interval adjustment value in the second direction Y determined in step S212, and the powder determined in step S214. The print data generated in step S202 is corrected using the discharge amount of the modeling liquid 28 discharged between the layers 24 (step S216).

  That is, the adjustment unit 14D corrects the print data so that the spatial ratios in at least two directions of the first direction X, the second direction Y, and the third direction Z in the three-dimensional structure 32 match. As described above, at least one of the discharge amount of the modeling liquid 28 and the discharge interval of the modeling liquid 28 is adjusted.

  Then, the adjustment unit 14D outputs the corrected print data to the modeling apparatus 12 (Step S218). That is, the adjusting unit 14D controls the modeling apparatus 12 so as to model the three-dimensional modeled object 32 using the corrected print data. Then, this routine ends.

  By the processing in step S218, the modeling apparatus 12 models the three-dimensional model 32 using the corrected print data. For this reason, the modeling apparatus 12 can model the three-dimensional modeled object 32 in which the space ratios in at least two directions of the first direction X, the second direction Y, and the third direction Z coincide.

  As described above, the three-dimensional modeling apparatus 10 of the present embodiment includes the supply unit 18, the flattening unit 16, the discharge unit 26, and the control unit 14C. The supply unit 18 supplies the powder 20. The flattening unit 16 flattens the surface of the supplied powder 20 in the first direction X to form the powder layer 24. The discharge unit 26 discharges the modeling liquid 28 to a position corresponding to the modeling object on the surface of the powder layer 24 to form the dots 30.

  The control unit 14C controls the supply unit 18, the flattening unit 16, and the discharge unit 26 so as to repeat a series of processes of supplying the powder 20, forming the powder layer 24, and discharging the modeling liquid 28. Thereby, the three-dimensional molded item 32 corresponding to the modeling target is formed. The control unit 14C includes an adjustment unit 14D. The adjustment unit 14 </ b> D has a first direction X, a third direction Z that is orthogonal to the first direction X and coincides with the thickness direction of the powder layer 24, the first direction X, and the third in the three-dimensional structure 32. At least one of the discharge amount of the modeling liquid 28 and the discharge interval of the modeling liquid 28 is adjusted so that the space ratios in at least two directions of the second direction Y orthogonal to the direction Z of the modeling liquid 28 coincide.

  As described above, in the three-dimensional modeling apparatus 10 according to the present embodiment, the adjusting unit 14D has the spatial ratio in the first direction X, the spatial ratio in the second direction Y, and the third direction Z in the three-dimensional modeled object 32. At least one of the discharge amount of the modeling liquid 28 and the discharge interval of the modeling liquid 28 is adjusted so that the spatial ratios in at least two directions of the spatial ratio match.

  Therefore, in the three-dimensional model | molding apparatus 10 of this Embodiment, the nonuniformity of the spatial rate of the three-dimensional molded item 32 can be suppressed.

  Note that the three-dimensional modeling apparatus 10 preferably includes an acquisition unit 14B. Acquisition part 14B acquires the spatial information which shows the spatial rate of the 1st direction X of a modeling subject, and the spatial rate of the 2nd direction Y of a modeling subject. The adjustment unit 14D has the modeling liquid 28 in the first direction X so that the space ratio in the first direction X and the space ratio in the second direction Y indicated by the spatial information become the predetermined reference space ratio. At least one of the discharge interval, the discharge interval of the modeling liquid 28 in the second direction Y, and the discharge amount per discharge of the modeling liquid 28 may be adjusted.

  The reference space ratio is preferably the smaller one of the space ratio in the first direction X and the space ratio in the second direction Y.

  The adjustment unit 14D has the other direction compared to the dot interval when dots are successively formed in one of the first direction X and the second direction Y, which are indicated by the spatial information, in one direction having a small space ratio. Spatial information includes at least one of the discharge interval of the modeling liquid 28 in the other direction and the discharge amount per discharge of the modeling liquid 28 so that the dot interval when dots are continuously formed is narrowed. Adjust accordingly. As a result, the adjustment unit 14D adjusts the space ratio in the first direction X and the space ratio in the second direction Y in the three-dimensional structure 32 to be the reference space ratio.

  Further, the spatial information includes a space ratio in the first direction X of the modeling object, a space ratio in the second direction Y of the modeling object, and a first region corresponding to the interlayer of the powder layer 24 in the modeling object. It is preferable to include the space ratio in the third direction Z of A. In a series of processes, the control unit 14C discharges the modeling liquid 28 to the position corresponding to the modeling object on the surface of the powder layer 24 according to the print data for forming the modeling object, thereby forming the dots 30. Thus, the discharge unit 26 is controlled. In a series of processes, the adjusting unit 14D discharges dots 30 according to the print data on the surface of the powder layer 24 so that the spatial ratio in the third direction Z indicated by the spatial information matches the reference spatial ratio. Further, the discharge amount of the modeling liquid 28 is adjusted so as to discharge the modeling liquid 28 in an amount corresponding to the spatial information. By this adjustment, the adjustment unit 14D further adjusts so that the space ratio in the third direction Z becomes the reference space ratio.

  The reference spatial ratio is preferably the smallest spatial ratio among the spatial ratio in the first direction X, the spatial ratio in the second direction Y, and the spatial ratio in the third direction Z.

  The storage unit 38 stores condition information 40 in which spatial information is associated with modeling conditions. The accepting unit 14A accepts modeling conditions for the modeling object. The acquisition unit 14B preferably acquires the spatial information by reading the spatial information corresponding to the accepted modeling condition from the condition information 40.

  The modeling conditions may include at least one of a flattening speed by the flattening unit 16, a discharge environment of the modeling liquid 28, a layer thickness per layer of the powder layer 24, and a type of the powder 20. preferable.

  Moreover, the three-dimensional modeling method of this Embodiment is a three-dimensional modeling method performed with the three-dimensional modeling apparatus 10, and includes a control step. The control step controls the supply unit 18, the flattening unit 16, and the discharge unit 26 so as to repeat a series of processes of supplying the powder 20, forming the powder layer 24, and discharging the modeling liquid 28. Is a step of forming a three-dimensionally shaped object 32 corresponding to the object to be shaped. That is, the control step includes an adjustment step. The adjustment step includes a first direction X, a third direction Z that is orthogonal to the first direction X and coincides with the thickness direction of the powder layer 24, the first direction X, and the third direction in the three-dimensional structure 32. This is a step of adjusting at least one of the discharge amount of the modeling liquid 28 and the discharge interval of the modeling liquid 28 so that the space ratios in at least two directions of the second direction Y orthogonal to the direction Z coincide.

  In addition, the three-dimensional modeling program of the present embodiment is a three-dimensional modeling program that is executed by a computer (information processing apparatus 14) that controls the modeling apparatus 12, and includes a control step. The control step controls the supply unit 18, the flattening unit 16, and the discharge unit 26 so as to repeat a series of processes of supplying the powder 20, forming the powder layer 24, and discharging the modeling liquid 28. Is a step of forming a three-dimensionally shaped object 32 corresponding to the object to be shaped. That is, the control step includes an adjustment step. The adjustment step includes a first direction X, a third direction Z that is orthogonal to the first direction X and coincides with the thickness direction of the powder layer 24, the first direction X, and the third direction in the three-dimensional structure 32. This is a step of adjusting at least one of the discharge amount of the modeling liquid 28 and the discharge interval of the modeling liquid 28 so that the space ratios in at least two directions of the second direction Y orthogonal to the direction Z coincide.

  Further, the information processing apparatus 14 according to the present embodiment controls the modeling apparatus 12. The information processing apparatus 14 includes a control unit 14C. The control unit 14C controls the supply unit 18, the flattening unit 16, and the discharge unit 26 so as to repeat a series of processes of supplying the powder 20, forming the powder layer 24, and discharging the modeling liquid 28. Thereby, the three-dimensional molded item 32 corresponding to the modeling target is formed. The control unit 14C includes an adjustment unit 14D. The adjustment unit 14 </ b> D has a first direction X, a third direction Z that is orthogonal to the first direction X and coincides with the thickness direction of the powder layer 24, the first direction X, and the third in the three-dimensional structure 32. At least one of the discharge amount of the modeling liquid 28 and the discharge interval of the modeling liquid 28 is adjusted so that the space ratios in at least two directions of the second direction Y orthogonal to the direction Z of the modeling liquid 28 coincide.

  Next, the powder 20 and the modeling liquid 28 used in the present embodiment will be specifically described.

<Powder>
The powder 20 has a configuration in which the surface of a particulate base material is covered with a coating layer. Note that the powder 20 may further include other components.

-Base material-
First, the base material will be described. The substrate is in the form of powder or particles. Examples of the material of the base material include metals, ceramics, carbon, polymers, wood, biocompatible materials, and sand. From the viewpoint of manufacturing the three-dimensional model 32 having higher strength, it is preferable to use a metal that can be sintered or ceramics as the base material.

Examples of the metal include stainless steel (SUS) steel, iron, copper, titanium, and silver. The stainless steel (SUS) is, for example, SUS316L. The ceramic is, for example, a metal oxide. Specifically, the ceramic is silica (SiO ₂ ), alumina (Al ₂ O ₃ ), zirconia (ZrO ₂ ), titania (TiO ₂ ), or the like. Examples of the carbon include graphite, graphene, carbon nanotube, carbon nanohorn, and fullerene.

  The polymer is, for example, a known resin insoluble in water. The wood is, for example, wood chip, cellulose or the like. Examples of the biocompatible material include polylactic acid and calcium phosphate.

  The base material may be composed of one of the above materials, or may be a structure in which a plurality of the above materials are mixed.

Moreover, you may use the particle | grains and powder of the commercial item comprised with the said material for a base material. For example, as commercially available products, SUS316L (manufactured by Sanyo Special Steel Co., Ltd., PSS316L), SiO ₂ (manufactured by Tokuyama Co., Ltd., Excelica SE-15K), AlO ₂ (manufactured by Daimei Chemical Co., Ltd., Tymicron TM-5D), ZrO ₂ (manufactured by Tosoh Corporation, TZ-B53) and the like can be mentioned.

  The surface of the substrate may be subjected to a known surface (modification) treatment from the viewpoint of increasing the affinity with a coating layer that covers the surface of the substrate, which will be described later.

  The average particle diameter of the substrate can be appropriately selected according to the purpose and is not particularly limited. The average particle diameter of the substrate is, for example, preferably from 0.1 μm to 500 μm, more preferably from 5 μm to 300 μm, and still more preferably from 15 μm to 250 μm.

  When the average particle diameter of the base material is 0.1 μm or more and 500 μm or less, the manufacturing efficiency of the three-dimensional structure 32 is excellent, and the handleability and handling properties are good. When the average particle diameter of the base material is 500 μm or less, when the powder layer 24 is formed using the powder 20, the filling rate of the powder 20 in the powder layer 24 is improved, and the three-dimensional structure obtained It is difficult for air gaps or the like to occur in 32.

  The average particle size of the substrate can be measured according to a known method using a known particle size measuring device such as Microtrac HRA (manufactured by Nikkiso Co., Ltd.).

  The particle size distribution of the substrate can be appropriately selected depending on the purpose, and is not particularly limited. The outer shape, surface area, circularity, fluidity, wettability, and the like of the substrate can be appropriately selected according to the purpose and are not particularly limited.

―Coating layer―
Next, the coating layer that covers the surface of the substrate will be described. The coating layer may be a layer having a function of solidifying after being dissolved by the modeling liquid 28 and may be adjusted according to the type of the modeling liquid 28.

  For example, the coating layer is preferably composed of an organic material.

  As an organic material, it is preferable that it has a property which melt | dissolves in the modeling liquid 28 and can be bridge | crosslinked by action | operation of the crosslinking agent etc. which are contained in the modeling liquid 28.

  The dissolution in the modeling liquid 28 means that, for example, when 1 g of an organic material is mixed and stirred in 100 g of the solvent of the modeling liquid 28 at 30 ° C., 90% by mass or more of the organic material is dissolved.

  In addition, the organic material used for the coating layer preferably has a viscosity at 20 ° C. of a 4 mass% (w / w%) solution of the organic material of 40 mPa · s or less, more preferably 1 mPa · s or more and 35 mPa · s or less. 5 mPa · s or more and 30 mPa · s or less is particularly preferable.

  When the viscosity of the organic material used for the coating layer is 40 mPa · s or less, the strength and dimensional accuracy of the three-dimensional structure 32 formed from the dots 30 by the modeling liquid 28 discharged onto the powder 20 are improved. In addition, what is necessary is just to measure a viscosity based on JISK7117, for example.

  The organic material used for the coating layer may be a material having a function of solidifying after being dissolved by the modeling liquid 28, and may be appropriately selected according to the purpose, the type of the modeling liquid 28, and the like. However, the organic material used for the coating layer is preferably water-soluble from the viewpoints of handleability and environmental load. Examples of such organic materials are water-soluble resins and water-soluble prepolymers.

  When using the powder 20 which employ | adopted water-soluble organic material as a coating layer, an aqueous medium can be used for the modeling liquid 28. FIG. In addition, when a water-soluble organic material is employed as the coating layer, the organic material and the substrate can be separated by water treatment when the powder 20 is discarded or recycled.

  Examples of the water-soluble resin include polyvinyl alcohol resin, polyacrylic acid resin, cellulose resin, starch, gelatin, vinyl resin, amide resin, imide resin, acrylic resin, and polyethylene glycol.

  These water-soluble resins may be homopolymers (homopolymers), heteropolymers (copolymers), or may be modified as long as they exhibit water solubility. Moreover, a well-known functional group may be introduce | transduced into water-soluble resin, and the form of a salt may be sufficient.

  For example, when a polyvinyl alcohol resin is used for the coating layer, polyvinyl alcohol, modified polyvinyl alcohol by acetoacetyl group, acetyl group, silicone, etc. (acetoacetyl group-modified polyvinyl alcohol, acetyl group-modified polyvinyl alcohol, silicone-modified polyvinyl alcohol, etc.) Butanediol vinyl alcohol copolymer or the like may be used.

  Moreover, what is necessary is just to use salts, such as polyacrylic acid and sodium polyacrylate, when using a polyacrylic acid resin for a coating layer. Further, when a cellulose resin is used for the coating layer, cellulose, carboxymethyl cellulose (CMC), or the like may be used. Moreover, when using an acrylic resin for a coating layer, polyacrylic acid, an acrylic acid / maleic anhydride copolymer, etc. may be used, for example.

  When a water-soluble prepolymer is used for the coating layer, for example, an adhesive water-soluble isocyanate prepolymer contained in a water-stopping agent or the like may be used.

  Examples of organic materials and resins other than water-soluble that can form the coating layer include acrylic, maleic acid, silicone, butyral, polyester, polyvinyl acetate, vinyl chloride / vinyl acetate copolymer, polyethylene, polypropylene, polyacetal, Ethylene / vinyl acetate copolymer, ethylene / (meth) acrylic acid copolymer, α-olefin / maleic anhydride copolymer, α-olefin / maleic anhydride copolymer esterified product, polystyrene, poly ( (Meth) acrylic acid ester, α-olefin / maleic anhydride / vinyl group-containing monomer copolymer, styrene / maleic anhydride copolymer, styrene / (meth) acrylic acid ester copolymer, polyamide, epoxy resin, xylene resin , Ketone resin, petroleum resin, rosin or its derivatives, coumarone in Down resin, terpene resin, polyurethane resin, styrene / butadiene rubber, polyvinyl butyral, nitrile rubber, acrylic rubber, synthetic rubbers such as ethylene / propylene rubber, nitrocellulose, and the like.

  In addition, it is preferable to use the organic material which has a crosslinkable functional group for a coating layer. The crosslinkable functional group can be appropriately selected according to the purpose and is not particularly limited. Examples of the crosslinkable functional group include a hydroxyl group, a carboxyl group, an amide group, a phosphate group, a thiol group, an acetoacetyl group, and an ether bond.

  It is preferable to use an organic material having a crosslinkable functional group for the coating layer from the viewpoint that the organic material can be easily cross-linked to form a three-dimensional modeled object 32 as a cured product.

  As the organic material used for the coating layer, it is preferable to use a polyvinyl alcohol resin having an average degree of polymerization of 400 to 1,100. Furthermore, it is preferable to use a modified polyvinyl alcohol resin in which a crosslinkable functional group is introduced into the molecule as described above for the organic material used for the coating layer. In particular, it is preferable to use an acetoacetyl group-modified polyvinyl alcohol resin for the coating layer.

  For example, when a polyvinyl alcohol resin having an acetoacetyl group is used for the coating layer, a complex three-dimensional network structure (crosslinked structure) in which the acetoacetyl group is interposed via the metal due to the action of the metal in the crosslinking agent contained in the modeling liquid 28. Can be easily formed (excellent in cross-linking reactivity). For this reason, the three-dimensional modeled object 32 that has been modeled is very excellent in bending strength.

  As the polyvinyl alcohol resin having an acetoacetyl group (acetoacetyl group-modified polyvinyl alcohol resin), those having different properties such as viscosity and saponification degree may be used alone or in combination of two or more. Good. Moreover, it is more preferable to use an acetoacetyl group-modified polyvinyl alcohol resin having an average degree of polymerization of 400 or more and 1,100 or less for the coating layer.

  As an organic material used for the coating layer, the above-mentioned materials may be used alone or in combination of two or more, may be appropriately synthesized, or may be commercially available. It may be a product.

  Examples of commercially available products used for the coating layer include polyvinyl alcohol (manufactured by Kuraray Co., Ltd., PVA-205C, PVA-220C), polyacrylic acid (manufactured by Toagosei Co., Ltd., Jurimer AC-10), and sodium polyacrylate (Toago). Synthetic Co., Ltd., Jurimer AC-103P), acetoacetyl group-modified polyvinyl alcohol (manufactured by Nippon Synthetic Chemical Industry Co., Ltd., Gohsennex Z-300, Gohsenx Z-100, Gohsenx Z-200, Gohsenx Z-205, Gohsenx Z-210 , GOHSEX Z-220), carboxy group-modified polyvinyl alcohol (manufactured by Nippon Synthetic Chemical Industry Co., Ltd., GOHSEX T-330, GOHSEX T-350, GOHSEX T-330T), butanediol vinyl alcohol copolymer Nippon Synthetic Chemical Industry Co., Ltd., Nichigo G-Polymer OKS-8041), diacetone acrylamide-modified polyvinyl alcohol (Nippon Vinegar Poval Co., Ltd., DF-05), carboxymethylcellulose sodium (Daiichi Kogyo Seiyaku Co., Ltd., Serogen 5A, Serogen 6A), starch (manufactured by Sanwa Starch Kogyo Co., Ltd., Hystad PSS-5), gelatin (manufactured by Nitta Gelatin Co., Ltd., Bee Matrix Gelatin) and the like.

  Although the thickness of the coating layer is not limited, for example, the average thickness is preferably 5 nm to 1,000 nm, preferably 5 nm to 500 nm, more preferably 50 nm to 300 nm, and particularly preferably 100 nm to 200 nm.

  The intensity | strength of the three-dimensional molded item 32 formed from the dot 30 by the modeling liquid 28 discharged to the powder 20 improves that the average thickness of a coating layer is 5 nm or more. Moreover, the dimensional accuracy of the three-dimensional molded item 32 formed from the dot 30 by the modeling liquid 28 discharged to the powder 20 as the average thickness of a coating layer is 1,000 nm or less.

  The average thickness of the coating layer is, for example, after embedding the powder 20 in an acrylic resin or the like and then performing etching or the like to expose the surface of the substrate, followed by a scanning tunneling microscope STM, an atomic force microscope AFM, scanning It can be measured by using a scanning electron microscope SEM or the like.

  In addition, the thickness of a coating layer can be made thinner by using the material containing a crosslinking agent as a coating layer than the case where a crosslinking agent is not included. That is, it is possible to reduce the thickness of the coating layer by utilizing the curing action by the crosslinking agent, and it is possible to realize both the strength and accuracy of the three-dimensional structure 32 to be formed.

  The coverage (area ratio) of the surface of the base material by the coating layer may be appropriately adjusted according to the purpose, and is not particularly limited. For example, the coverage of the surface of the base material by the coating layer is preferably 15% or more, more preferably 50% or more, and particularly preferably 80% or more.

  The intensity | strength of the three-dimensional molded item 32 formed from the dot 30 by the modeling liquid 28 discharged to the powder 20 improves that a coverage is 15% or more. Moreover, the dimensional accuracy of the three-dimensional molded item 32 formed from the dot 30 by the modeling liquid 28 discharged to the powder 20 improves that the coverage is 15% or more.

  The coverage of the surface of the base material by the coating layer is, for example, by observing an electron micrograph of the powder 20 and covering the powder 20 in the photograph with the coating layer with respect to the entire area of the surface of the base material. The average value of the ratio (%) of the area of the part is calculated. And this average value may be used as the coverage. Moreover, you may measure a coverage by performing element mapping by energy dispersive X-ray spectroscopy, such as SEM-EDS, about the part coat | covered with the coating layer in the base material of the powder 20.

  The powder 20 may contain other components. Other components may be appropriately selected according to the purpose and are not particularly limited. For example, other components include a fluidizing agent, a filler, a leveling agent, and a sintering aid.

  By making the powder 20 contain a fluidizing agent, the powder layer 24 can be formed easily and efficiently. Generation | occurrence | production of a space | gap can be suppressed in the three-dimensional molded item 32 shape | molded by making the powder 20 the structure containing a filler. Moreover, by making the powder 20 contain a leveling agent, the wettability of the powder 20 is improved and handling can be facilitated. By making the powder 20 contain a sintering aid, it becomes possible to sinter at a lower temperature when the shaped three-dimensional object 32 is sintered.

-Powder manufacturing method-
The method for producing the powder 20 may be appropriately selected according to the purpose, and is not particularly limited.

  For example, the surface of the substrate particles (or powder) may be coated with a coating layer using a known coating method. Known coating methods include, for example, a rolling fluid coating method, a spray drying method, a stirring and mixing addition method, a dipping method, and a kneader coating method. Moreover, these coating methods can be implemented using various well-known commercially available coating apparatuses, granulating apparatuses, and the like.

-Physical properties of powder-
The average particle diameter of the powder 20 may be appropriately adjusted according to the purpose, and is not limited. The average particle size of the powder 20 is, for example, preferably 3 μm to 250 μm, more preferably 3 μm to 200 μm, still more preferably 5 μm to 150 μm, and particularly preferably 10 μm to 85 μm.

  When the average particle diameter of the powder 20 is 3 μm or more, the fluidity of the powder 20 is improved, the powder layer 24 is easily formed, and the smoothness of the surface of the powder layer 24 is improved. For this reason, it is possible to improve the modeling efficiency of the three-dimensional modeled object 32 and to improve the handling property and dimensional accuracy of the three-dimensional modeled object 32.

  When the average particle size of the powder 20 is 250 μm or less, the size of the space between the powders 20 in the powder layer 24 can be reduced. For this reason, the space ratio of the three-dimensional modeled object 32 can be reduced, and the strength of the three-dimensional modeled object 32 can be improved. From these viewpoints, the average particle diameter of the powder 20 is preferably 3 μm or more and 250 μm or less from the viewpoint of achieving both dimensional accuracy and strength.

  The particle size distribution of the powder 20 can be appropriately selected according to the purpose and is not particularly limited.

  The angle of repose of the powder 20 is preferably 60 degrees or less, more preferably 50 degrees or less, and still more preferably 40 degrees or less. When the angle of repose of the powder 20 is 60 degrees or less, the powder 20 can be efficiently and stably disposed at a desired location. The angle of repose can be measured using, for example, a powder property measuring device (Powder Tester PT-N type, manufactured by Hosokawa Micron Corporation).

<Modeling liquid>
Next, the modeling liquid 28 used in the present embodiment will be described. The modeling liquid 28 may be a liquid having a function of solidifying after the coating layer of the powder 20 is dissolved.

  For this reason, what is necessary is just to adjust the modeling liquid 28 suitably according to the material of the coating layer of the powder 20 used for modeling. For example, the modeling liquid 28 includes a solvent that dissolves the coating layer of the powder 20.

  The solvent which comprises the modeling liquid 28 should just be able to melt | dissolve the coating layer of the powder 20, and is not limited. For example, the solvent includes water, alcohols such as ethanol, hydrophilic solvents such as ether and ketone, ether solvents such as aliphatic hydrocarbons and glycol ethers, ester solvents such as ethyl acetate, ketone solvents such as methyl ethyl ketone, and higher solvents. Such as alcohol.

  Among these, from the viewpoint of environmental load and ejection stability of the modeling liquid 28, it is preferable to use a hydrophilic solvent, and water is more preferable. In addition, as a hydrophilic solvent, the solvent which mixed water and components other than water, such as alcohol, may be sufficient. Moreover, when using a hydrophilic solvent for the modeling liquid 28, it is preferable that the constituent material of the coating layer of the powder 20 is mainly composed of a water-soluble organic material.

  The hydrophilic solvent used for the modeling liquid 28 is water, alcohol, such as ethanol, ether, ketone, etc., for example. The hydrophilic solvent may be an organic solvent containing components other than water such as alcohol.

  The modeling liquid 28 preferably contains a cross-linking agent that cross-links the material constituting the coating layer of the powder 20. Further, the modeling liquid 28 may contain a solvent that dissolves the coating layer of the powder 20, a component that promotes dissolution by the solvent, a stabilizer that maintains the storage stability of the modeling liquid 28, and the like. Moreover, the structure which contains the other component further may be sufficient as the modeling liquid 28 as needed.

  When using the modeling liquid 28 containing a crosslinking agent, by discharging the modeling liquid 28 to the powder 20, the coating layer of the powder 20 (resin contained therein) is dissolved in the modeling liquid 28 and It crosslinks with the contained crosslinking agent. Thereby, the area | region where the modeling liquid 28 was discharged in the powder 20 will be in the state which the coating layer of the powder 20 connected and mutually solidified.

  The crosslinking agent contained in the modeling liquid 28 is not particularly limited as long as it has a property capable of crosslinking a resin such as an organic material contained in the coating layer of the powder 20, and can be appropriately selected according to the purpose. . Examples of the crosslinking agent include metal salts, metal complexes, organic zirconium compounds, organic titanium compounds, chelating agents, and the like.

  Examples of the organic zirconium compound include zirconium oxychloride, ammonium zirconium carbonate, and ammonium zirconium lactate.

  Examples of the organic titanium compound include titanium acylate and titanium alkoxide.

  The metal salt is, for example, one that ionizes a divalent or higher cation metal in water. Specific examples of the metal salt include zirconium oxychloride octahydrate (tetravalent), aluminum hydroxide (trivalent), magnesium hydroxide (divalent), titanium lactate ammonium salt (tetravalent), and basic aluminum acetate. (Trivalent), zirconium carbonate ammonium salt (tetravalent), titanium triethanolamate (tetravalent), and the like.

  In addition, you may use a commercial item as a metal salt. Commercially available products include, for example, zirconium oxychloride octahydrate (Daiichi Rare Element Chemical Co., Ltd., zirconium oxychloride), aluminum hydroxide (Wako Pure Chemical Industries, Ltd.), magnesium hydroxide (Wako Pure Chemical Industries, Ltd.) Manufactured by Kogyo Co., Ltd.), titanium lactate ammonium salt (Matsumoto Fine Chemical Co., Ltd., Olga Chicks TC-300), zirconium lactate ammonium salt (Matsumoto Fine Chemical Co., Ltd., Olga Chicks ZC-300), basic aluminum acetate (Wako Pure Chemicals) Industrial Co., Ltd.), bisvinylsulfone compound (Fuji Film Fine Chemicals Co., Ltd., VSB (K-FJC)), zirconium carbonate ammonium salt (Daiichi Rare Element Chemical Co., Ltd., Zircosol AC-20), titanium triethanol Aminate (Ma Moto Fine Chemicals Co., Ltd., ORGATICS TC-400), and the like.

  Among these, zirconium carbonate ammonium salt is more preferable in that the strength of the three-dimensional structure 32 to be obtained is excellent.

  The modeling liquid 28 may be configured to include one type of cross-linking agent, or may be configured to include a plurality of types of cross-linking agents. Among the above, the crosslinking agent contained in the modeling liquid 28 is more preferably a metal salt.

  Moreover, it is preferable that the modeling liquid 28 contains surfactant. By including the surfactant, the surface tension of the modeling liquid 28 can be adjusted.

  The surfactant is, for example, an anionic surfactant, a nonionic surfactant, or an amphoteric surfactant. In addition, it is preferable to select a surfactant that does not impair dispersion stability depending on the combination of the wetting agent and the water-soluble organic solvent.

  Although the viscosity of the modeling liquid 28 is not limited, For example, the viscosity at 25 ° C. is preferably 25 mPa · s or less, and more preferably 3 mPa · s or more and 20 mPa · s or less. It is preferable that the viscosity of the modeling liquid 28 at 25 ° C. is 25 mPa · s or less because the discharge unit 26 can stably discharge the modeling liquid 28.

  Moreover, it is preferable that the viscosity change rate before and after the modeling liquid 28 is left to stand at 50 degreeC for 3 days is less than 20%. When the viscosity change rate of the modeling liquid 28 is 20% or more, the ejection of the modeling liquid 28 by the ejection unit 26 may become unstable.

  Next, the hardware configuration of the information processing apparatus 14 in the present embodiment will be described.

  FIG. 11 is a hardware configuration diagram of the information processing apparatus 14. The information processing apparatus 14 includes a CPU 300, a ROM (Read Only Memory) 302, a RAM (Random Access Memory) 304, and an I / F (Interface) 306. The CPU 300, the ROM 302, the RAM 304, and the I / F 306 are connected to each other via a bus 308, and have a hardware configuration using a normal computer.

  A program for executing the modeling process executed by the information processing apparatus 14 according to the present embodiment is provided by being incorporated in advance in the ROM 302 or the like.

  The program for executing the modeling process executed by the information processing apparatus 14 according to the present embodiment is a file in a format that can be installed in these apparatuses or an executable format, and is a CD-ROM or a flexible disk (FD). , CD-R, DVD (Digital Versatile Disk), and the like may be recorded on a computer-readable recording medium and provided.

  Further, a program for executing the modeling process executed by the information processing apparatus 14 according to the present embodiment is stored on a computer connected to a network such as the Internet and provided by being downloaded via the network. It may be configured. Moreover, you may comprise so that the program for performing the modeling process performed with the information processing apparatus 14 of this Embodiment may be provided or distributed via networks, such as the internet.

  The program for executing the modeling process executed by the information processing apparatus 14 according to the present embodiment has a module configuration including the above-described units. As actual hardware, the CPU 300 reads out each program from a storage medium such as the ROM 302 and executes the program, whereby the above-described units are loaded onto the main storage device and generated on the main storage device.

  In addition, although this Embodiment was described above, the said embodiment is shown as an example and is not intending limiting the range of invention. The above-described novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. The above embodiments are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 Three-dimensional modeling apparatus 14 Information processing apparatus 14A Reception part 14B Acquisition part 14C Control part 14D Adjustment part 16 Flattening part 18 Supply part 20 Powder 22 Modeling part 26 Discharge part

Japanese Patent No. 4792504 JP 2012-139855 A

Claims (11)

A supply unit for supplying powder;
Leveling the surface of the supplied powder by leveling in the first direction to form a powder layer; and
A discharge part that discharges a modeling liquid to a position corresponding to a modeling object on the surface of the powder layer to form dots;
The modeling is performed by controlling the supply unit, the planarization unit, and the discharge unit so as to repeat a series of processes of supplying the powder, forming the powder layer, and discharging the modeling liquid. A control unit for forming a three-dimensional object corresponding to the object;
With
The controller is
In the three-dimensional object, the first direction, the third direction orthogonal to the first direction and the thickness direction of the powder layer, orthogonal to the first direction and the third direction. An adjustment unit that adjusts at least one of the modeling liquid discharge amount and the modeling liquid discharge interval so that the space ratios in at least two directions of the second direction coincide with each other;
Solid modeling device. An acquisition unit that acquires spatial information indicating the spatial ratio of the modeling target in the first direction and the spatial ratio of the modeling target in the second direction;
The adjustment unit is
An ejection interval of the modeling liquid in the first direction, so that the space ratio in the first direction and the space ratio in the second direction indicated by the spatial information become a predetermined reference space ratio, Adjusting at least one of a discharge interval of the modeling liquid in the second direction and a discharge amount per discharge of the modeling liquid;
The three-dimensional modeling apparatus according to claim 1.   3. The three-dimensional modeling apparatus according to claim 2, wherein the reference spatial ratio is a smaller one of the spatial ratio in the first direction and the spatial ratio in the second direction. The adjustment unit is
Compared to the dot interval when dots are continuously formed in one of the first direction and the second direction indicated by the spatial information and in which the space ratio is small, it is continuously in the other direction. In accordance with the spatial information, at least one of the discharge interval of the modeling liquid in the other direction and the discharge amount per discharge of the modeling liquid in the other direction is adjusted so that the dot interval when forming dots is narrowed By adjusting, the space ratio in the first direction and the space ratio in the second direction in the three-dimensional modeled object are adjusted to be the reference space ratio.
The three-dimensional modeling apparatus according to claim 3. The spatial information corresponds to a space ratio of the modeling object in the first direction, a space ratio of the modeling object in the second direction, and a layer between the powder layers in the modeling object. Including a space ratio in the third direction of one region;
In the series of processes, the control unit discharges the modeling liquid to a position corresponding to the modeling object on the surface of the powder layer in accordance with print data for forming the modeling object. Controlling the ejection part to form dots,
The adjustment unit is
In the series of processing, on the dots ejected in accordance with the print data on the surface of the powder layer in the series of processes so that the spatial ratio in the third direction indicated by the spatial information matches the reference spatial ratio. Furthermore, by adjusting the discharge amount of the modeling liquid so as to discharge the modeling liquid in the discharge amount according to the spatial information, the space ratio in the third direction is further adjusted to become the reference spatial ratio. The three-dimensional modeling apparatus according to claim 2.   The three-dimensional object according to claim 5, wherein the reference spatial ratio is the smallest spatial ratio among the spatial ratio in the first direction, the spatial ratio in the second direction, and the spatial ratio in the third direction. Modeling equipment. A storage unit that stores condition information in which the spatial information is associated with modeling conditions;
A reception unit for receiving the modeling condition of the modeling object;
With
The acquisition unit acquires the spatial information by reading the spatial information corresponding to the received modeling condition from the condition information.
The three-dimensional modeling apparatus of any one of Claims 2-6.   The modeling conditions include at least one of a flattening speed by the flattening unit, a discharge environment of the modeling liquid, a layer thickness per layer of the powder layer, and a type of the powder. The three-dimensional modeling apparatus according to claim 7. A supply unit that supplies powder, a flattening unit that forms a powder layer by leveling the surface of the supplied powder in a first direction, and a modeling target on the surface of the powder layer A three-dimensional modeling method that is executed by a three-dimensional modeling apparatus including a discharge unit that discharges a modeling liquid to a position according to an object to form dots,
The modeling is performed by controlling the supply unit, the planarization unit, and the discharge unit so as to repeat a series of processes of supplying the powder, forming the powder layer, and discharging the modeling liquid. Including a control step of forming a three-dimensional object corresponding to the object,
The control step includes
In the three-dimensional object, the first direction, the third direction orthogonal to the first direction and the thickness direction of the powder layer, orthogonal to the first direction and the third direction. An adjustment step of adjusting at least one of the modeling liquid discharge amount and the modeling liquid discharge interval so that the space ratios in at least two directions of the second direction match.
Solid modeling method. A supply unit that supplies powder, a flattening unit that forms a powder layer by leveling the surface of the supplied powder in a first direction, and a modeling target on the surface of the powder layer A three-dimensional modeling program to be executed by a computer that controls a modeling apparatus including a discharge unit that discharges a modeling liquid to a position according to an object to form dots,
The modeling is performed by controlling the supply unit, the planarization unit, and the discharge unit so as to repeat a series of processes of supplying the powder, forming the powder layer, and discharging the modeling liquid. Including a control step of forming a three-dimensional object corresponding to the object,
The control step includes
In the three-dimensional object, the first direction, the third direction orthogonal to the first direction and the thickness direction of the powder layer, orthogonal to the first direction and the third direction. An adjustment step of adjusting at least one of the modeling liquid discharge amount and the modeling liquid discharge interval so that the space ratios in at least two directions of the second direction match.
Solid modeling program. A supply unit that supplies powder, a flattening unit that forms a powder layer by leveling the surface of the supplied powder in a first direction, and a modeling target on the surface of the powder layer An information processing apparatus that controls a modeling apparatus including a discharge unit that discharges a modeling liquid to a position according to an object to form dots,
The modeling is performed by controlling the supply unit, the planarization unit, and the discharge unit so as to repeat a series of processes of supplying the powder, forming the powder layer, and discharging the modeling liquid. A control unit for forming a three-dimensional object corresponding to the object;
The controller is
In the three-dimensional object, the first direction, the third direction orthogonal to the first direction and the thickness direction of the powder layer, orthogonal to the first direction and the third direction. An adjustment unit that adjusts at least one of the modeling liquid discharge amount and the modeling liquid discharge interval so that the space ratios in at least two directions of the second direction coincide with each other;
Information processing device.

Images