JP6624907B2 - 3D data creation device and 3D modeling system - Google Patents

Description

  The present invention relates to a three-dimensional data creation device and a three-dimensional printing system.

  2. Description of the Related Art Conventionally, there has been known a three-dimensional modeling apparatus that models a three-dimensional model by curing a resin material and sequentially laminating a resin cured layer having a predetermined cross-sectional shape. In this kind of three-dimensional printing apparatus, data of a three-dimensional model for forming a three-dimensional printing object is created using, for example, a computer program. Then, based on a plurality of slice models created by slicing the three-dimensional model at predetermined intervals, a plurality of slice images corresponding to the cross-sectional shape of the three-dimensional structure are created.

  In order to create a slice image, STL data is usually used as data of a three-dimensional model. In the STL data, a normal vector of a surface of each triangle constituting the three-dimensional model and coordinate values of three vertexes of each triangle are recorded.

  Conventionally, STL data has been created by dedicated software, regardless of whether the three-dimensional object to be formed has a simple shape or a complicated shape. When modeling a three-dimensional structure, it is necessary to be familiar with software that handles STL data. However, STL data is data indicating a three-dimensional shape displayed in an XYZ coordinate space, and is advanced and specialized. . For this reason, it was relatively difficult for a general user to create STL data and form a three-dimensional structure.

  The present invention has been made in view of such a point, and an object of the present invention is to provide a three-dimensional data creation device capable of relatively easily creating three-dimensional data required for modeling a three-dimensional structure, and a three-dimensional data creation device. It is to provide a molding system.

  The three-dimensional data creating apparatus according to the present invention is a three-dimensional modeling apparatus that forms a three-dimensional structure by curing a resin material and sequentially laminating a resin cured layer having a predetermined cross-sectional shape. A three-dimensional data creation device for creating three-dimensional data for modeling, wherein the three-dimensional data is created based on a two-dimensional figure input by a user, and is an XY plane in an XYZ coordinate space. A display device that has graphic information for displaying the graphic of FIG. 3 and height information for displaying the height in the Z-axis direction, and a display device that displays the information; A creation support device that supports creation of three-dimensional data, wherein the creation support device is configured to display the three-dimensional data on the XY plane in the XYZ coordinate space based on the graphic information input by the input device. A figure creation unit for creating a shape; and a similar figure in which the created figure and / or the created figure are similarly enlarged or reduced based on the height information input by the input device. And a data creating unit that creates the three-dimensional data by copying in the Z-axis direction by the amount of the information.

  According to the three-dimensional data creation device according to the present invention, the figure creation unit creates a predetermined figure on the XY plane in the XYZ coordinate space based on the figure information input by the input device. Then, the data creation unit converts, based on the height information input by the input device, the created figure and / or a similar figure obtained by enlarging or reducing the created figure to the Z-axis by the height information. Create three-dimensional data by replicating in the direction. As described above, the data creating unit can create three-dimensional data as data of a three-dimensional model by using the two-dimensional figure created on the XY plane in the XYZ coordinate space and the height information. . Therefore, the user can use the input device to create a two-dimensional figure on the XY plane in the XYZ coordinate space, and determine the height information. Necessary three-dimensional data can be created.

  According to the present invention, three-dimensional data required for forming a three-dimensional structure can be relatively easily created.

It is a perspective view showing the structure of the three-dimensional fabrication system concerning one embodiment. It is a block diagram of a control device concerning one embodiment. It is a block diagram of a three-dimensional data creation device concerning one embodiment. FIG. 3 is a conceptual diagram illustrating a display device. FIG. 11 is an explanatory diagram showing a state where a modeling tab is selected on an editing screen. It is explanatory drawing which shows the state in which the support member was arrange | positioned in the internal space of the figure on XY plane. FIG. 9 is an explanatory diagram showing a state where a processing tab is selected on an editing screen. It is explanatory drawing which shows the modification of a three-dimensional model. It is an explanatory view showing a modification on a figure and a three-dimensional model on an XY plane. It is explanatory drawing which shows the modification of a three-dimensional model.

  Hereinafter, a three-dimensional printing system including a three-dimensional data creation device according to an embodiment of the present invention will be described with reference to the drawings. Note that the embodiments described here are not intended to limit the present invention in particular. Further, members / parts having the same action are denoted by the same reference numerals, and redundant description will be omitted or simplified as appropriate.

  FIG. 1 is a perspective view of a three-dimensional printing system 10 according to the present embodiment. The three-dimensional printing system 10 is a system for printing a three-dimensional printing object. The three-dimensional printing system 10 includes a three-dimensional printing device 20 and a three-dimensional data creation device 70. The three-dimensional printing apparatus 20 prepares a slice image representing the cross-sectional shape of the three-dimensional structure, cures the resin material, and sequentially laminates a resin cured layer having a cross-sectional shape along the slice image, thereby forming a three-dimensional structure. This is a device for modeling objects. Here, the “cross-sectional shape” is a cross-sectional shape when the three-dimensional structure is sliced at a predetermined thickness (for example, 0.1 mm). In the present embodiment, a case where a thermoplastic resin is used as a resin material will be described as an example.

  In the following description, left, right, upper, and lower refer to left, right, upper, and lower, respectively, as viewed from a worker in front of the three-dimensional printing apparatus 20. Further, the direction approaching the worker from the three-dimensional printing apparatus 20 is referred to as front, and the direction away from the worker is referred to as rear. Symbols F, Rr, L, R, U, and D in the drawings represent front, rear, left, right, upper, and lower, respectively. However, these are only directions for convenience of description, and do not limit the installation mode of the three-dimensional printing apparatus 20 at all.

  As shown in FIG. 1, the three-dimensional printing apparatus 20 includes a housing 22, a printing head 30, a processing head 40, a printing table 50, a control device 55, and a carriage 60.

  As shown in FIG. 1, the housing 22 includes a right side wall 22A, a left side wall 22B, a bottom wall 22C, a rear wall 22D, and an upper wall 22E. An opening 23 is formed in the housing 22 from the upper side to the front side. The housing 22 is provided with a cover (not shown) that covers the opening 23.

  As shown in FIG. 1, the carriage 60 is disposed inside the housing 22. The carriage 60 is movably provided on a pair of first guide rails 61 disposed in the housing 22. The carriage 60 is movable in the left-right direction along the first guide rail 61. The first guide rail 61 extending in the left-right direction is connected to the right side wall 22A and the left side wall 22B. The carriage 60 moves in the left-right direction by receiving the driving force of the first motor 60A (see FIG. 2). The first motor 60A is controlled by the control device 55. The carriage 60 includes a pair of second guide rails 62 and a pair of third guide rails 63. The second guide rail 62 and the third guide rail 63 extend in the up-down direction. The second guide rail 62 is arranged on the right side of the third guide rail 63.

  The modeling head 30 discharges a thermoplastic resin 38. As shown in FIG. 1, the modeling head 30 is disposed inside the housing 22. The modeling head 30 is provided on the carriage 60. When the carriage 60 moves in the left-right direction, the modeling head 30 also moves in the left-right direction. The modeling head 30 is movably provided on the second guide rail 62. The modeling head 30 includes a modeling head main body 32, a nozzle 34 for discharging a thermoplastic resin 38, a heater 35, and a pair of roller gears 36. The modeling head main body 32 is movably provided on the second guide rail 62. The modeling head main body 32 receives the driving force of the second motor 30A (see FIG. 2) and moves in the vertical direction. Thereby, the modeling head 30 moves in the up-down direction. The second motor 30A is controlled by the control device 55. A cartridge 37 is arranged above the carriage 60. The cartridge 37 contains a thermoplastic resin 38. The nozzle 34 discharges the thermoplastic resin 38 transported from the cartridge 37 to the modeling table 50. The nozzle diameter of the nozzle 34 is configured to be changeable. By increasing the diameter of the nozzle, modeling of a three-dimensional model can be performed quickly. In addition, by reducing the nozzle diameter, a three-dimensional structure can be more accurately formed. The heater 35 applies heat to the thermoplastic resin 38 transported from the cartridge 37. The heater 35 is attached to the modeling head main body 32. The heater 35 is disposed above the nozzle 34. The roller gear 36 is provided on the modeling head main body 32. The pair of roller gears 36 are arranged apart from each other. The roller gear 36 rotates by receiving the driving force of the third motor 36A (see FIG. 2). The third motor 36A is controlled by the control device 55. The thermoplastic resin 38 transported from the cartridge 37 passes between the pair of roller gears 36. As the roller gear 36 rotates, the thermoplastic resin 38 is conveyed to the nozzle 34 and discharged from the nozzle 34 to the modeling table 50. The thermoplastic resin 38 is softened by the heat of the heater 35 and is discharged from the nozzle 34 to the molding table 50 in a soft state. The thermoplastic resin 38 discharged to the modeling table 50 is then cured. The modeling head 30 sequentially stacks a resin cured layer having a predetermined cross-sectional shape corresponding to the slice image created by the control device 55. Thus, a desired three-dimensional structure is formed.

  The processing head 40 processes the surface of the three-dimensional structure formed from the cured thermoplastic resin 38. As shown in FIG. 1, the processing head 40 is disposed in the housing 22. The processing head 40 is provided on the carriage 60. As the carriage 60 moves in the left-right direction, the processing head 40 also moves in the left-right direction. The processing head 40 is provided movably on the third guide rail 63. The processing head 40 is disposed on the left side of the modeling head 30. The processing head 40 moves integrally with the modeling head 30. The processing head 40 includes a processing head body 42, a spindle 44, a processing tool 45 detachably attached to the spindle 44, and a motor 46 for rotating the spindle 44. The spindle 44 rotates the processing tool 45. The processing head main body 42 is movably provided on the third guide rail 63. The processing head body 42 moves in the vertical direction by receiving the driving force of the fourth motor 40A (see FIG. 2). Thereby, the processing head 40 moves in the up-down direction. The fourth motor 40A is controlled by the control device 55. The spindle 44 is attached to the processing head body 42. The motor 46 is attached to the processing head main body 42. The motor 46 is arranged above the spindle 44.

  The modeling table 50 holds the thermoplastic resin 38 discharged from the nozzle 34. A three-dimensional model is formed on the modeling table 50. The modeling table 50 is arranged in the housing 22. The modeling table 50 is disposed below the modeling head 30 and the processing head 40. The modeling table 50 is provided above the bottom wall 22C. The modeling table 50 is movably provided on a guide rail (not shown) provided on the bottom wall 22C. The modeling table 50 receives the driving force of the fifth motor 50A (see FIG. 2) and moves in the front-rear direction. The fifth motor 50A is controlled by the control device 55.

  The control device 55 controls the formation of the three-dimensional structure and the processing of the three-dimensional structure. Specifically, the control device 55 controls the modeling head 30, the processing head 40, the modeling table 50, the carriage 60, and the like. The control device 55 controls the modeling head 30 and the processing head 40 based on the three-dimensional data created by the three-dimensional data creation device 70. The configuration of the control device 55 is not particularly limited. For example, the control device 55 is a computer, and may include a central processing unit (hereinafter, referred to as a CPU), a ROM storing programs executed by the CPU, a RAM, and the like.

  As shown in FIG. 2, the control device 55 includes a storage unit 56, a slice image creation unit 57, a first pass data creation unit 58A, a second pass data creation unit 58B, and a third pass data creation unit 58C. It has. Note that the three-dimensional data is point group data, that is, three-dimensional coordinate data representing XYZ coordinate values.

  The storage unit 56 stores the three-dimensional data created by the three-dimensional data creation device 70. The storage unit 56 stores position information of a three-dimensional structure formed based on the three-dimensional data. Here, the position information of the three-dimensional structure includes, for example, both origin information of the three-dimensional structure and outer shape information representing the surface shape of the three-dimensional structure based on the origin information. The position information of the three-dimensional structure is three-dimensional coordinate data based on the surface shape of the three-dimensional structure.

  The slice image creation unit 57 slices the three-dimensional model represented by the three-dimensional data created by the three-dimensional data creation device 70 at predetermined intervals, and generates a plurality of slice images corresponding to the cross-sectional shape of the three-dimensional structure. create.

  The first path data creation unit 58A creates first path data indicating the movement path of the modeling head 30 based on the created plurality of slice images. The created first path data is stored in the storage unit 56. The control device 55 controls the modeling head 30 and the like using the first path data to model a three-dimensional model.

  The second path data creation unit 58B creates second path data indicating the movement path of the processing head 40 with respect to the formed three-dimensional object based on the created three-dimensional data. The second path data indicates a movement path along which the processing tool 45 of the processing head 40 traces the entire surface of the three-dimensional structure. That is, if the actually formed three-dimensional object is larger than the three-dimensional object theoretically formed based on the three-dimensional data, the difference is cut off by the processing tool 45. The created second path data is stored in the storage unit 56. The control device 55 controls the processing head 40 and the like using the second pass data, and processes the surface of the three-dimensional structure.

  The third pass data creation unit 58C indicates a third movement path of the machining head 40 with respect to the three-dimensional object whose surface has been machined, based on a machining graphic created in a graphic display unit 75e (see FIG. 7) described later. Create path data. The third path data indicates a moving path when the processing tool 45 creates a processing figure on a predetermined portion of the three-dimensional structure. The created third pass data is stored in the storage unit 56. The control device 55 controls the processing head 40 and the like using the third pass data, and adds a pattern or the like to the surface of the three-dimensional structure.

  The configuration of the three-dimensional printing apparatus 20 according to the embodiment has been described above. The three-dimensional printing apparatus 20 needs three-dimensional data indicating how the control device 55 controls the printing head 30 and the processing head 40. In the present embodiment, prior to the formation of the three-dimensional structure by the three-dimensional formation device 20, the three-dimensional data of the three-dimensional structure to be formed is created by the three-dimensional data creation device 70. The three-dimensional modeling device 20 discharges the thermoplastic resin 38 from the modeling head 30 based on the three-dimensional data created by the three-dimensional data creation device 70, and processes the surface of the three-dimensional modeled object by the processing head 40. By doing so, a desired three-dimensional structure is formed.

  Next, the three-dimensional data creation device 70 will be described. As shown in FIG. 1, the three-dimensional data creating device 70 is separate from the three-dimensional printing device 20. The three-dimensional data creation device 70 may be built in the three-dimensional printing device 20. For example, the three-dimensional data creation device 70 is a known computer, and may include a CPU, a ROM storing programs executed by the CPU, a RAM, and the like. Here, three-dimensional data used by the three-dimensional printing apparatus 20 is created using a program stored in the computer. The three-dimensional data creation device 70 may be a dedicated computer for the three-dimensional printing device 20 or a general-purpose computer.

  Three-dimensional data is data created before forming a three-dimensional structure. The three-dimensional data is created based on a two-dimensional figure input by a user. The three-dimensional data has graphic information, height information, and support information. The graphic information is information for displaying a graphic on an XY plane in an XYZ coordinate space. The graphics on the XY plane include a two-dimensional graphic input by the user and a similar graphic in which the two-dimensional graphic input by the user is similarly enlarged or reduced. The graphic information includes thickness information in the X-axis direction and / or the Y-axis direction based on the outer surface of the graphic. The height information is information indicating the height in the Z-axis direction. That is, the height information is information indicating the height of the three-dimensional model 74Y (see FIG. 5) in the Z-axis direction. The support information is information for displaying a support member arranged in a part of the internal space of the figure.

  FIG. 3 is a block diagram of the three-dimensional data creation device 70. As shown in FIG. 3, the three-dimensional data creation device 70 includes a display device 71, an input device 78, and a creation support device 80.

  As shown in FIG. 4, the display device 71 includes, for example, a screen 72. Here, by pressing a button 72a displayed on the screen 72, an editing screen 73 is displayed on the screen 72 as shown in FIG. The editing screen 73 includes a modeling tab 74 and a processing tab 75.

  As shown in FIG. 5, by selecting the modeling tab 74, a screen for setting each information of the three-dimensional data is displayed. On the edit screen 73, a figure selecting section 74a for displaying a two-dimensional figure registered in advance, a tool selecting section 74b for displaying an editing tool used for editing the figure, and setting a height in the Z-axis direction. Height setting section 74c, a thickness setting section 74d for setting a thickness based on the outer surface of the figure, a figure display section 74e for displaying a figure created on the XY plane, and modeling based on three-dimensional data. And a support selection unit 74g for displaying a support member registered in advance. When the modeling tab 74 is selected on the editing screen 73, a graphic selecting section 74a and the like are displayed on the editing screen 73.

  Specifically, for example, a figure such as a square, a trapezoid, a circle, or a star is displayed on the figure selecting unit 74a. The tool selection unit 74b displays a tool for adding a straight line, a tool for enlarging a figure, and the like. In the figure display section 74e, a figure created on the XY plane and a figure being created (hereinafter, these are collectively referred to as an XY figure 74X) are displayed. That is, the user creates a desired XY figure 74X on the figure display section 74e. In the example shown in FIG. 5, the XY graphic 74X has an internal space 74XX. The height setting section 74c is provided with a height input slider 74ca and a height input box 74cb. The user can set the height h in the Z-axis direction by moving the height input slider 74ca in the vertical direction. The user can set the height h in the Z-axis direction by inputting a desired dimension into the height input box 74cb. The thickness setting section 74d is provided with a thickness input slider 74da and a thickness input box 74db. The user can set the thickness t of the XY graphic 74X by moving the thickness input slider 74da in the left-right direction. The user can set the thickness t of the XY graphic 74X by inputting a desired dimension into the thickness input box 74db. Thereby, the size of the internal space 74XX of the XY figure 74X can be changed. The three-dimensional model 74Y of the three-dimensional model obtained by copying the XY figure 74X created in the figure display part 74e in the Z-axis direction by the height h set in the height setting part 74c is displayed in the model display 74f. Is displayed as a preview. As shown in FIG. 6, when the height h is increased, the three-dimensional model 74Y is also increased in the Z-axis direction by the height h. As shown in FIG. 5, the support selection unit 74g includes a pattern selection unit 74ga and a pattern thickness input box 74gb. The pattern selection unit 74ga displays a plurality of support member templates 79A to 79E arranged in the internal space 74XX of the XY graphic 74X created on the XY plane. For example, the template 79A of the support member is a pattern having a honeycomb structure. The user can set the thickness of the pattern by inputting a desired dimension into the pattern thickness input box 74gb. As shown in FIG. 6, when one of the templates 79A to 79E is selected by the user and the thickness of the pattern is input, the support member 74Z is arranged in the internal space 74XX of the XY graphic 74X. You. Here, the template 79A is selected.

  As shown in FIG. 7, by selecting the processing tab 75, a screen for setting a predetermined cutting processing at a desired position of the created three-dimensional data is displayed. The editing screen 73 displays a processing selection unit 75a that displays the type of cutting processing, a graphic selection unit 75b that displays a pre-registered two-dimensional processing graphic, and an editing tool used when editing the processing graphic. There is provided a tool selection unit 75c for performing the processing, a depth setting unit 75d for setting the depth at the time of processing, and a graphic display unit 75e for displaying the processed graphic. When the processing tab 75 is selected on the editing screen 73, a processing selecting section 75a and the like are displayed on the editing screen 73.

  Specifically, for example, “cutting out”, “drilling”, “line”, and the like are displayed on the processing selection unit 75a. “Cutout” means cutting a part of a predetermined surface of a three-dimensional structure to form a convex portion or cutting off a predetermined portion. “Drilling” means forming a hole or a long hole in a predetermined surface of a three-dimensional structure. The “line” means that a linear groove having a desired length is formed in the three-dimensional structure. In the figure selecting section 75b, processed figures such as a square, a trapezoid, a circle, and a star are displayed. A tool for adding a straight line, a tool for enlarging a figure, and the like are displayed in the tool selection unit 75c. The depth setting section 75d is provided with a depth input slider 75da and a depth input box 75db. The user can set the depth of the processed figure by moving the depth input slider 75da in the vertical direction. The user can set the depth of the processed figure by inputting a desired dimension in the depth input box 75db. The graphic display section 75e displays the graphic and the processed graphic created on the XY plane, and allows the user to preview. That is, the user creates a desired processed figure on the figure display section 75e. The created data of the processed figure is transmitted to the control device 55.

  The input device 78 (see FIG. 3) is a device to which an operation regarding information of three-dimensional data is input by a user. That is, the device is used to input an operation related to each item provided on the edit screen 73 when the modeling tab 74 and the processing tab 75 are selected. The input device 78 is not particularly limited, and is, for example, a keyboard and a mouse. The user operates the input device 78 to select, for example, the modeling tab 74 or the processing tab 75, create the XY graphic 74X on the graphic display 74e, or operate the height input slider 74ca to set the Z. The height h in the axial direction (that is, the height h of the three-dimensional model 74Y) can be set.

  As shown in FIG. 3, the creation support device 80 is a device that supports creation of three-dimensional data used for forming a three-dimensional structure based on a two-dimensional XY graphic 74X input by a user. . Here, the creation support device 80 is connected to the control device 55 (see FIG. 1) of the three-dimensional printing device 20. The three-dimensional data created by the three-dimensional data creation device 70 is transmitted to the control device 55 through the creation support device 80. The creation support device 80 includes a storage unit 82, a figure creation unit 84, a support creation unit 86, a data creation unit 88, and a display unit 90. Each of the above-described units may be configured by software or may be configured by hardware.

  The storage unit 82 stores a plurality of two-dimensional figures displayed on the figure selection unit 74a (see FIG. 5). The storage unit 82 stores a plurality of support member templates 79A to 79E displayed on the support selection unit 74g (see FIG. 5). The two-dimensional figures and the templates 79A to 79E of the support members are, for example, downloaded from a storage medium or a WEB site or read from another computer (not shown) into the storage unit 82 by a user operation. Further, the storage unit 82 stores a two-dimensional figure created by a user operation, a template of a support member, and the like.

  The figure creating unit 84 creates a figure on the XY plane in the XYZ coordinate space based on the figure information input by the input device 78. Thereby, as shown in FIG. 5, the XY figure 74X created by the figure creating unit 84 is displayed on the figure display unit 74e. As the graphic information, for example, a two-dimensional graphic selected in the graphic selecting unit 74a, a graphic created or modified by using the tool of the tool selecting unit 74b, a thickness of the graphic set in the thickness setting unit 74d, Also, an internal space provided inside the figure is included.

  The support creating unit 86 creates a support member corresponding to the support information in a part of the internal space of the graphic created by the graphic creating unit 84 based on the support information input by the input device 78. Thereby, as shown in FIG. 5, the support member 74Z created by the support creation section 86 is displayed in the internal space 74XX of the XY figure 74X on the figure display section 74e (see FIG. 5). When the support member 74Z is disposed in the internal space 74XX, the support member 74Z is not densely filled in the entire internal space 74XX, and the internal space 74XX still exists. The support information includes, for example, a support member created by using the tool of the tool selection unit 74b, a template selected by the user among a plurality of templates 79A to 79E displayed on the pattern selection unit 74ga, and a pattern thickness. The thickness of the pattern set in the input box 74gb is included.

  The data creation unit 88 creates three-dimensional data by copying the figure including the support member in the Z-axis direction by the height information based on the height information in the Z-axis direction. The height information in the Z-axis direction is input by, for example, the input device 78. The height information includes the height h in the Z-axis direction of the three-dimensional model 74Y set in the height input slider 74ca or the height input box 74cb of the height setting unit 74c. When the support creating unit 86 does not create a support member, the data creating unit 88 creates three-dimensional data by copying the figure created by the figure creating unit 84 in the Z-axis direction by the height information. .

  The display unit 90 displays a three-dimensional model 74Y of a three-dimensional structure formed based on the three-dimensional data created by the data creation unit 88 on the display device 71. More specifically, as shown in FIG. 6, the display unit 90 displays the three-dimensional model 74Y on the model display unit 74f of the editing screen 73.

  Next, a procedure in which a user creates three-dimensional data using the three-dimensional data creation device 70 will be described. Here, the editing screen 73 is not displayed on the screen 72 of the display device 71, but a button 72a is displayed. First, when the user operates the input device 78 and presses the button 72a, an editing screen 73 is displayed on the screen 72 as shown in FIG. Next, the user operates the input device 78 to create a desired two-dimensional figure on the figure display section 74e using the figure selection section 74a and the tool selection section 74b as appropriate. The user operates the input device 78 to set the thickness t of the figure in the thickness setting unit 74d. As a result, the figure creating unit 84 creates an XY figure 74X having the internal space 74XX on the XY plane in the XYZ coordinate space. Next, the user selects, for example, the template 79A from the plurality of templates 79A to 79E displayed on the pattern selection unit 74ga, and inputs the pattern thickness in the pattern thickness input box 74gb. Accordingly, the support creating unit 86 creates the support member 74Z in a part of the internal space 74XX of the XY graphic 74X.

  Thereafter, the user sets the height h in the height setting section 74c. Thus, the data creation unit 88 creates three-dimensional data by copying the XY graphic 74X including the support member 74Z by the height h in the Z-axis direction. At this time, the display unit 90 displays a three-dimensional model 74Y formed based on the created three-dimensional data on the model display 74f. The created three-dimensional data is transmitted to the storage unit 56 of the control device 55.

  As described above, according to the three-dimensional data creation device 70 of the present embodiment, the figure creation unit 84 creates the XY figure 74X on the XY plane in the XYZ coordinate space based on the figure information input by the input device 78. create. Then, based on the height information (height h) input by the input device 78, the data creation unit 88 duplicates the created XY figure 74X by the height information in the Z-axis direction, thereby obtaining a three-dimensional image. Create data. As described above, the data creating unit 88 creates three-dimensional data as data of a three-dimensional model using the two-dimensional XY figure 74X created on the XY plane in the XYZ coordinate space and the height information. be able to. Therefore, the user can use the input device 78 to create a two-dimensional XY graphic 74X on the XY plane in the XYZ coordinate space and determine the height information, thereby performing a three-dimensional object by a relatively simple operation. It is possible to create three-dimensional data necessary for modeling.

  In the present embodiment, as shown in FIG. 3, the creation support device 80 includes a support creation unit 86. As shown in FIG. 6, the support creation unit 86 corresponds to a part of the created internal space 74XX of the XY graphic 74X based on the support information input by the input device 78 (see FIG. 3). The support member 74Z is created. As described above, since the three-dimensional structure formed using the three-dimensional data has the internal space, it is possible to reduce the amount of the thermoplastic resin 38 used at the time of the formation and to form the three-dimensional structure. Can be lightened. Further, since the support member is formed in a part of the internal space, sufficient strength is ensured even if the three-dimensional structure has the internal space.

  In the present embodiment, as shown in FIG. 3, the creation support device 80 includes templates 79A to 79E (see FIG. 6) of support members 74Z (see FIG. 6) arranged in a part of the internal space 74XX (see FIG. 6). ) Is stored. Thus, when creating the support member 74Z in the internal space 74XX, the user only has to select one of the templates 79A to 79E stored in the storage unit 82 in advance. As described above, since the user does not need to create the support member 74Z from scratch in the internal space 74XX of the XY graphic 74X using the input device 78, three-dimensional data having support information can be easily created.

  In the present embodiment, as shown in FIG. 3, the creation support device 80 displays the three-dimensional model 74Y (see FIG. 5) of the three-dimensional structure formed based on the created three-dimensional data on the display device 71 (see FIG. 5). 5) is provided. Thereby, the user can confirm the three-dimensional model 74Y formed based on the three-dimensional data before forming, and can correct the XY figure 74X and the like as necessary.

  In the present embodiment, as shown in FIG. 1, the three-dimensional printing system 10 includes a three-dimensional printing device 20 and a three-dimensional data creation device 70. The three-dimensional modeling device 20 includes a control device 55 that controls the modeling head 30 and the processing head 40 based on the three-dimensional data created by the three-dimensional data creation device 70. When a three-dimensional structure including a plurality of resin cured layers is formed by curing a thermoplastic resin, irregularities may be generated on the surface of the formed three-dimensional structure. In particular, this may occur when the three-dimensional printing is performed faster by increasing the nozzle diameter of the nozzle 34. Since the three-dimensional printing apparatus 20 of the present embodiment includes the processing head 40, the surface of the three-dimensional printing object can be processed. That is, after performing the three-dimensional structure quickly, by processing the surface of the three-dimensional structure by the processing head 40, a desired three-dimensional structure can be rapidly and accurately formed. Further, the three-dimensional data used in the shaping head 30 when shaping a three-dimensional structure is also used in the processing head 40. For this reason, the surface of the three-dimensional structure can be machined without preparing new three-dimensional data for the machining head 40.

  In the present embodiment, as shown in FIG. 1, the modeling head 30 and the processing head 40 are provided on a carriage 60. Thereby, the modeling head 30 and the processing head 40 can be moved integrally. The structure and control are simpler than in the case where the modeling head 30 and the processing head 40 are independently moved. In addition, since the modeling head 30 and the processing head 40 move integrally, the origin may be adjusted in one of the modeling head 30 and the processing head 40.

  In the above-described embodiment, the data creation unit 88 copies the three-dimensional data by copying the figure including the support member in the Z-axis direction by the height information based on the input height information in the Z-axis direction. Was created, but is not limited to this. Based on the height information in the Z-axis direction, the data creating unit 88 converts the figure including the support member and / or the similar figure in which the figure including the support member is similarly enlarged or reduced in the Z-axis direction by the height information. By duplicating, three-dimensional data may be created. The edit screen 73 (see FIG. 6) is provided with a graphic enlargement / reduction unit (not shown) that can set the degree of enlargement or reduction of the XY graphic 74X (see FIG. 6) including the support member 74Z (see FIG. 6). I have. The graphic enlarging / reducing unit can set the degree of enlargement or reduction of the XY graphic 74X for each height in the Z-axis direction.

  For example, as shown in FIG. 8, the XY graphic 74 </ b> X (see FIG. 6) including the support member 74 </ b> Z (see FIG. 6) is reduced by the data creating unit 88 in a similar manner as it goes upward in the Z-axis direction. By duplication, a three-dimensional model 74Y of a quadrangular pyramid can be created.

  Further, for example, as shown in FIG. 9, by copying the similar figure 174X in which the circular XY figure 74X including the support member 74Z is similarly enlarged toward the upper side in the Z-axis direction by the data creating unit 88, A three-dimensional model 74Y of a truncated cone can be created. A similar figure 174X in FIG. 9 is an example of a similar figure in which the XY figure 74X is similarly enlarged.

  Further, for example, as shown in FIG. 10, the XY figure 74X including the support member 74Z is copied by a predetermined height by the data creation unit 88 to a similar height as the XY figure 74X including the support member 74Z goes upward in the Z-axis direction. The first part 74YA is created, and the XY figure 74X including the support member 74Z is duplicated by a predetermined height to create the second part 74YB, and the XY figure 74X including the support member 74Z is copied in the Z-axis direction. By duplicating, by a predetermined height, a similar figure enlarged in a similar manner as it goes upward, a third portion 74YC is created, and is arranged between the two truncated cones 74YA, 74YC and the two truncated cones 74YA, 74C. A three-dimensional model 74Y including the obtained cylinder 74B can be created.

Reference Signs List 30 modeling head 40 processing head 55 control device 70 three-dimensional data creation device 71 display device 78 input device 80 creation support device 82 storage unit 84 figure creation unit 86 support creation unit 88 data creation unit 90 display unit

Claims (5)

In a three-dimensional printing apparatus for forming a three-dimensional structure by curing a resin material and sequentially laminating a resin cured layer having a predetermined cross-sectional shape, a three-dimensional forming device for forming three-dimensional data for forming the three-dimensional structure Source data creation device,
The three-dimensional data is created based on a two-dimensional graphic input by a user, and includes graphic information for displaying a graphic on an XY plane in an XYZ coordinate space including an internal space, and a height in a Z-axis direction. Has height information to display, and support information to display a support member arranged in a part of the internal space ,
A display device for displaying the information,
An input device to which an operation related to the information by a user is input;
A creation support device that supports creation of the three-dimensional data,
With
The creation support device,
A figure creating unit that creates the figure having the internal space on the XY plane in the XYZ coordinate space based on the figure information input by the input device;
A support creation unit that creates a support member corresponding to the support information in a part of the internal space of the created graphic, based on the support information input by the input device;
Based on the height information inputted by the input device, the similarity figure the created figure is enlarged or reduced similarity including the created graphics and / or the support member including said support member A data creation unit that creates the three-dimensional data by replicating the height information in the Z-axis direction. The creation support device further includes a storage unit that stores a plurality of support member templates arranged in a part of the internal space,
2. The support creation unit according to claim 1 , wherein a support member corresponding to the template is created in a part of the internal space of the created figure based on a template selected by a user among the plurality of templates. 3. The three-dimensional data creation device described. The creation support apparatus includes a display unit for displaying a three-dimensional model of the three dimensional model to be shaped on the basis of the three-dimensional data created in the above on the display device, tertiary according to claim 1 or 2 Original data creation device. The three-dimensional modeling device,
A three-dimensional modeling system comprising: the three-dimensional data creation device according to any one of claims 1 to 3 ;
The three-dimensional printing apparatus,
A modeling head that discharges a thermoplastic resin as a resin material,
A modeling table that holds the thermoplastic resin discharged from the modeling head,
A processing head for processing the surface of a three-dimensional structure formed from the cured thermoplastic resin,
A control device for controlling the modeling head and the processing head based on the three-dimensional data created by the three-dimensional data creation device. The three-dimensional modeling apparatus includes a carriage movable in a predetermined direction,
The three-dimensional modeling system according to claim 4 , wherein the modeling head and the processing head are provided on the carriage.

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