WO2011016188A1

WO2011016188A1 - Cad data processing device and cad data processing method

Info

Publication number: WO2011016188A1
Application number: PCT/JP2010/004598
Authority: WO
Inventors: 長尾良幸; 山崎公司; 佐藤昌康; 杉山淳
Original assignee: 株式会社コンピュータシステム研究所
Priority date: 2009-08-07
Filing date: 2010-07-15
Publication date: 2011-02-10
Also published as: CN102470610A; CN102470610B; JP2011039695A; JP5653011B2

Abstract

Provided are a CAD data processing device and a CAD data processing method suitable for producing a solid product by a three-dimensional printer. The CAD data processing device (100) comprises a control unit (110), an input unit (120), an output unit (130), a communication unit (140), a storage unit (150), and a display unit (160). The control unit (110) comprises an acquisition unit (111), an input reception unit (112), a processing unit (113), and a three-dimensional output control unit (114). The acquisition unit (111) acquires three-dimensional CAD data of a solid product, the input reception unit (112) receives an input operation designating at least one of division instruction surfaces which divide the solid product, and the processing unit (113) processes the three-dimensional CAD data so that the solid product is divided (cut) by the division instruction surface and a division area defined by a gap width.

Description

CAD data processing apparatus and CAD data processing method

The present invention relates to a CAD data processing apparatus and a CAD data processing method, and more particularly to a CAD data processing apparatus and a CAD data processing method for processing three-dimensional CAD data.

Conventionally, in product development, several prototypes have been created at the design and development stages to evaluate the appearance and performance. The most primitive prototype model includes a clay model made of clay and a wood model made by cutting wood. However, such model production has problems such as manpower, time and cost, poor reproducibility, and too much dependence on the skill of the model craftsman. Now that computer technology has advanced in place of the conventional prototype model production technology, the rapid development of the prototype product is created using 3D CAD data for the developed product, and a prototype model is created using this 3D CAD data. A technology called “typing” has been developed and put into practical use. This is a technique for creating a target “stereoscopic model” from three-dimensional CAD data at extremely high speed and low cost without manpower and time.

A typical technique for rapid prototyping is the “layer fabrication method”, which is based on the three-dimensional CAD data of an object and slice data (to be precise, a thin plate having a slight thickness constituting the object). The three-dimensional object (three-dimensional model) is formed by stacking the sliced data one layer at a time. And what is put to practical use in the layered modeling method is broadly divided into “photocontrast method” in which a photocurable resin is solidified with a laser, and a solidifying agent / binder supplied by an ink jet method or the like. There is a “powder-fixing-type lamination method” in which the shape is solidified, but the latter is superior in terms of low cost, high speed, and colorization. Regarding the “powder fixing type laminating method”, several related patents have been filed and acquired, and three-dimensional printers using the same have been put on the market. For example, as a conventional technique, there is a “method and apparatus for manufacturing a model of a three-dimensional object” (see Patent Document 1).

JP-T-2004-538191

Conventionally, the focus has been on modeling the desired three-dimensional object more accurately, cheaper and in a shorter time from the created three-dimensional data. This means that if the product being developed is a single product such as a machine part or a mobile phone terminal, that is, a model of a relatively small article, there is not much problem with setting such a development target. “Optical imaging” is suitable for various applications.

On the other hand, the “powder fixing type laminating method” has recently undergone technical innovation, and it has become possible to form “color solid objects” at extremely low cost and at high speed. For this reason, application to various fields other than shaped articles such as machine parts is being expected.

However, in the case of a three-dimensional model of a building, if a three-dimensional model is created using the three-dimensional CAD data of the building as it is, the user can observe only the “appearance” of the three-dimensional model created as an integral object. End up. In the case of buildings, civil engineering, and construction structures, the external structure that can be observed from the outside is also important, but the room layout, internal structure, cross-sectional structure, layer structure, and concrete bar arrangement are more important. There are many. However, in the prior art, if the three-dimensional data of the three-dimensional object is used as it is, the inside of the building or structure cannot be seen. That is, it is not possible to create a three-dimensional model capable of observing the room layout, internal structure, cross-sectional structure, and concrete bar arrangement of buildings and structures. Instructing a skilled operator of 3D CAD software who needs complicated operations to process the original 3D CAD data so that the room allocation, internal structure, cross-sectional structure, and concrete bar arrangement can be observed. Therefore, it is necessary to create CAD data for a “notched solid model” in which a part of the building is cut out so that the cross section of the building can be observed. As described above, even if CAD data for a “notched three-dimensional model” is created by bothering the hands of a CAD operator having specialized skills, and the internal structure can be observed, The “model” now has a dilemma in which the “whole” structure and appearance of buildings and civil engineering works cannot be observed.

Accordingly, an object of the present invention is to provide a CAD data processing apparatus and a CAD data processing method suitable for manufacturing a three-dimensional object by a three-dimensional printer, and in particular, dividing the one-piece object while preparing the target three-dimensional object as one. To provide a CAD data processing apparatus and CAD data processing method for processing three-dimensional CAD data so as to make it possible.

In order to solve the above-described problems, a CAD data processing apparatus according to the present invention includes:
A storage unit for storing the gap width;
An acquisition unit for acquiring three-dimensional CAD data of a three-dimensional object;
An input receiving unit for receiving an operation input for designating one or more division instruction surfaces for dividing the three-dimensional object;
A processing unit for processing the three-dimensional CAD data so as to divide (cut) the three-dimensional object in a divided region defined by the division instruction surface and the gap width;
Have

In the CAD data processing apparatus according to one embodiment of the present invention,
The gap width is defined according to a three-dimensional modeling resolution of a three-dimensional printer on which the three-dimensional object is printed (three-dimensional modeled).
For example, the three-dimensional printing resolution of a three-dimensional printer is as follows: In the case of a three-dimensional printer that uses powder as a base material and solidifies a part of the base material with a solidifying agent, the thickness of the base material spray layer once , And at least one of the penetration thickness of the solidifying agent (modeling agent, modeling ink). It is preferable to make the gap width as thin as possible.

In the CAD data processing apparatus according to one embodiment of the present invention,
The storage unit stores pattern data to be pasted on a surface in contact with the divided region,
The three-dimensional CAD data is set so that the processing unit pastes at least one pattern data on a surface in contact with the divided area of at least one object of two or more objects obtained by dividing (cutting) the three-dimensional object. Further processing,
It is characterized by that.

In the CAD data processing apparatus according to one embodiment of the present invention,
There are a plurality of the pattern data, and the pattern data is associated with each type of member,
The input receiving unit receives an operation input for designating a type of a member to be exposed on at least one surface in contact with the divided region;
The processing part is
Depending on the type of the designated member, the corresponding pattern data of the pattern data is read from the storage unit, and the three-dimensional CAD data is further pasted on at least one surface in contact with the divided area. It is characterized by processing.

In the CAD data processing apparatus according to one embodiment of the present invention,
The pattern data is
Consists of one or more selected from the group consisting of color, pattern, character, symbol, mark, figure, bar arrangement, structural cross section, map, design drawing, wiring diagram, and solid shape It is characterized by that.

In the CAD data processing apparatus according to one embodiment of the present invention,
The processing part is
Further processing the three-dimensional CAD data so that at least one shape that fits to each other is provided on both surfaces of the two or more objects that are divided (cut) of the three-dimensional object in contact with the divided region. Features.
For example, one is a concave portion and the other is a convex portion that can be accommodated in the concave portion. According to this configuration, after dividing / separating the three-dimensional object, “positioning” can be facilitated when the objects are combined again to make an apparent one-piece, and further, “slip” on the dividing surface, in particular division. It is possible to effectively prevent “slip” when the surface is specified obliquely. In addition, although the shape which mutually fits may be one, providing the shape can relieve the stress concerning the said shape, and can make it difficult to destroy the shape to fit, for example, a convex part.

In the CAD data processing apparatus according to one embodiment of the present invention,
The divided area is a flat area, a curved area, or a combination thereof.

In the CAD data processing apparatus according to one embodiment of the present invention,
The input receiving unit receives an operation input for designating a member included in the three-dimensional object as a movable member;
The processing part is
The movable member is divided (cut) from the three-dimensional object in a member-divided region defined by a surface where the designated movable member is in contact with the member of the three-dimensional object other than the movable member and the gap width, and the movable member is movable Processing the three-dimensional CAD data so that it can function as a member;
It is characterized by that.
The movable member is a door, a sliding door, or the like.

In the CAD data processing apparatus according to one embodiment of the present invention,
The processing part is
The movable member has a hole in which at least one retrofitting rotation support shaft for opening and closing the movable member and the three-dimensional object in contact with the movable member via the inter-member divided region is to be opened and closed. The three-dimensional shape is formed so that the three-dimensional object is formed at a first position where the three-dimensional object comes into contact with the movable member via the inter-member divided area, and the second position where the three-dimensional object comes into contact with the movable member via the inter-member divided area. Process CAD data,
It is characterized by that.

In the CAD data processing apparatus according to one embodiment of the present invention,
The processing part is
The movable member divides the two protrusions functioning as a pivot support shaft for opening and closing the movable member and the three-dimensional object contacting the movable member through the inter-member divided region. The protrusions are formed at first and second positions that contact the three-dimensional object through a region, and at the third and fourth positions that face the first and second positions through the inter-member region. Processing the three-dimensional CAD data so as to form two holes respectively for accommodating each;
Or
The movable member and the three-dimensional object that contacts the movable member via the inter-member divided area have two holes for accommodating a pivot support shaft for opening and closing, and the movable member is divided into the inter-member divided area. The first and second positions are in contact with the three-dimensional object through the first and second positions, and the holes are respectively formed in the third and fourth positions facing the first and second positions through the inter-member region. Processing the three-dimensional CAD data so as to form two protrusions to be accommodated, respectively;
It is characterized by that.

In the CAD data processing apparatus according to one embodiment of the present invention,
The input receiving unit receives an operation input for designating a member included in the three-dimensional object as an excluded member;
The processing part is
The three-dimensional CAD data is processed so as to exclude the specified exclusion member from the three-dimensional object, and a retrofit member (possible to a part of the frame of the three-dimensional object surrounding the space where the exclusion member exists). A guide slit for inserting a flexible plastic, glass plate, acrylic plate, etc.), and the retrofitting member is inserted into at least a portion of the three-dimensional object frame other than the portion provided with the guide slit. Processing the three-dimensional CAD data to form support grooves to be performed;
It is characterized by that.

As described above, the solution of the present invention has been described as an apparatus. However, the present invention can be realized as a method, a program, and a storage medium that stores the program substantially corresponding to these, and the scope of the present invention. It should be understood that these are also included. Each step of the following methods and programs uses a general-purpose or dedicated arithmetic processing unit such as a CPU or DSP as necessary for data processing. Are stored in a storage device such as a magnetic tape, HDD, or memory.

For example, a CAD data processing method using a computer according to another aspect of the present invention, in which the present invention is realized as a method,
A storage step of storing the gap width in the storage unit;
An acquisition step of acquiring three-dimensional CAD data of a three-dimensional object;
An input receiving step of receiving an operation input for designating one or more division instruction surfaces for dividing the three-dimensional object;
A processing step of processing the three-dimensional CAD data so as to divide (cut) the three-dimensional object in a division region defined by the division instruction surface and the gap width;
Have
In addition, each step includes a calculation unit (processor), a control unit (CPU), an input unit, an output unit, a display unit, a communication unit, a storage unit, an input reception unit, a processing unit, etc., which a computer or a CAD data processing apparatus has. Or two or more parts shall execute suitably in cooperation. The following method is the same.

A CAD data processing method according to an embodiment of the present invention includes:
The gap width is defined according to a three-dimensional modeling resolution of a three-dimensional printer on which the three-dimensional object is printed.
It is characterized by that.

A CAD data processing method according to an embodiment of the present invention includes:
Further storing in the storage unit pattern data to be attached to the surface in contact with the divided region;
A processing step of further processing the three-dimensional CAD data so that at least one pattern data is pasted on a surface in contact with the divided region of at least one object of the two or more divided objects of the three-dimensional object;
It further has these.

A CAD data processing method according to an embodiment of the present invention includes:
There are a plurality of the pattern data, and the pattern data is associated with each type of member,
A receiving step for further receiving an operation input for designating a type of a member to be exposed on at least one surface in contact with the divided region;
Depending on the type of the designated member, the corresponding pattern data of the pattern data is read from the storage unit, and the three-dimensional CAD data is further pasted on at least one surface in contact with the divided area. Processing steps to process;
It further has these.

A CAD data processing method according to an embodiment of the present invention includes:
The pattern data is
Consists of one or more selected from the group consisting of color, pattern, character, symbol, mark, figure, bar arrangement, structural cross section, map, design drawing, wiring diagram, and solid shape ing,
It is characterized by that.

A CAD data processing method according to an embodiment of the present invention includes:
A processing step of further processing the three-dimensional CAD data so as to provide at least one shape to be fitted to each other on both surfaces of the two or more objects that are divided into the three-dimensional object, which are in contact with the divided region;
It further has these.

A CAD data processing method according to an embodiment of the present invention includes:
The divided region is a flat region or a curved region, or a combination of these,
It is characterized by that.

A CAD data processing method according to an embodiment of the present invention includes:
A reception step of receiving an operation input for designating a member included in the three-dimensional object as a movable member;
The movable member is divided (cut) from the three-dimensional object in a member-divided region defined by a surface where the designated movable member is in contact with the member of the three-dimensional object other than the movable member and the gap width, and the movable member is movable It further has a processing step of processing the three-dimensional CAD data so that it can function as a member.

A CAD data processing method according to an embodiment of the present invention includes:
The movable member has a hole in which at least one retrofitting rotation support shaft for opening and closing the movable member and the three-dimensional object in contact with the movable member via the inter-member divided region is to be opened and closed. The three-dimensional shape is formed so that the three-dimensional object is formed at a first position where the three-dimensional object comes into contact with the movable member via the inter-member divided area, and the second position where the three-dimensional object comes into contact with the movable member via the inter-member divided area. Processing steps for processing CAD data;
It further has these.

A CAD data processing method according to an embodiment of the present invention includes:
The movable member divides the two protrusions functioning as a pivot support shaft for opening and closing the movable member and the three-dimensional object contacting the movable member through the inter-member divided region. The protrusions are formed at first and second positions that contact the three-dimensional object through a region, and at the third and fourth positions that face the first and second positions through the inter-member region. Processing the three-dimensional CAD data so as to form two holes respectively for accommodating each;
Or
The movable member and the three-dimensional object that contacts the movable member via the inter-member divided area have two holes for accommodating a pivot support shaft for opening and closing, and the movable member is divided into the inter-member divided area. The first and second positions are in contact with the three-dimensional object through the first and second positions, and the holes are respectively formed in the third and fourth positions facing the first and second positions through the inter-member region. Processing the three-dimensional CAD data so as to form two protrusions to be accommodated, respectively;
It further has these.

A CAD data processing method according to an embodiment of the present invention includes:
A reception step of receiving an operation input for designating a member included in the three-dimensional object as an excluded member;
The three-dimensional CAD data is processed so as to exclude the specified exclusion member from the three-dimensional object, and a retrofit member (possible to a part of the frame of the three-dimensional object surrounding the space where the exclusion member exists). A guide slit for inserting a flexible plastic, glass plate, acrylic plate, etc.), and the retrofitting member is inserted into at least a portion of the three-dimensional object frame other than the portion provided with the guide slit. Processing the three-dimensional CAD data to form support grooves to be performed;
It further has these.

Alternatively, a program according to another aspect of the present invention, which realizes the present invention as a method,
A CAD data processing program for causing a computer to execute a CAD data processing method,
A storage step of storing the gap width in the storage unit;
An acquisition step of acquiring three-dimensional CAD data of a three-dimensional object;
An input receiving step of receiving an operation input for designating one or more division instruction surfaces for dividing the three-dimensional object;
A processing step of processing the three-dimensional CAD data so as to divide (cut) the three-dimensional object in a division region defined by the division instruction surface and the gap width;
Have
In addition, each step is appropriately executed by a calculation unit (processor), a control unit (CPU), an input unit, an output unit, a display unit, a communication unit, a storage unit, or the like included in the computer alone or in cooperation with two or more units. It shall be. The same applies to the subsequent programs.

A CAD data processing program according to an embodiment of the present invention is:
The gap width is defined according to a three-dimensional modeling resolution of a three-dimensional printer on which the three-dimensional object is printed.
It is characterized by that.

A CAD data processing program according to an embodiment of the present invention is:
Further storing in the storage unit pattern data to be attached to the surface in contact with the divided region;
A processing step of further processing the three-dimensional CAD data so that at least one pattern data is pasted on a surface in contact with the divided region of at least one object of the two or more divided objects of the three-dimensional object;
It further has these.

A CAD data processing program according to an embodiment of the present invention is:
There are a plurality of the pattern data, and the pattern data is associated with each type of member,
A receiving step for further receiving an operation input for designating a type of a member to be exposed on at least one surface in contact with the divided region;
Depending on the type of the designated member, the corresponding pattern data of the pattern data is read from the storage unit, and the three-dimensional CAD data is further pasted on at least one surface in contact with the divided area. Processing steps to process;
It further has these.

A CAD data processing program according to an embodiment of the present invention is:
The pattern data is
Consists of one or more selected from the group consisting of color, pattern, character, symbol, mark, figure, bar arrangement, structural cross section, map, design drawing, wiring diagram, and solid shape ing,
It is characterized by that.

A CAD data processing program according to an embodiment of the present invention is:
A processing step of further processing the three-dimensional CAD data so as to provide at least one shape to be fitted to each other on both surfaces of the two or more objects that are divided into the three-dimensional object, which are in contact with the divided region;
It further has these.

A CAD data processing program according to an embodiment of the present invention is:
The divided region is a flat region or a curved region, or a combination of these,
It is characterized by that.

A CAD data processing program according to an embodiment of the present invention is:
A reception step of receiving an operation input for designating a member included in the three-dimensional object as a movable member;
The movable member is divided (cut) from the three-dimensional object in a member-divided region defined by a surface where the designated movable member is in contact with the member of the three-dimensional object other than the movable member and the gap width, and the movable member is movable It further has a processing step of processing the three-dimensional CAD data so that it can function as a member.

A CAD data processing program according to an embodiment of the present invention is:
The movable member has a hole in which at least one retrofitting rotation support shaft for opening and closing the movable member and the three-dimensional object in contact with the movable member via the inter-member divided region is to be opened and closed. The three-dimensional shape is formed so that the three-dimensional object is formed at a first position where the three-dimensional object comes into contact with the movable member via the inter-member divided area, and the second position where the three-dimensional object comes into contact with the movable member via the inter-member divided area. Processing steps for processing CAD data;
It further has these.

A CAD data processing program according to an embodiment of the present invention is:
The movable member divides the two protrusions functioning as a pivot support shaft for opening and closing the movable member and the three-dimensional object contacting the movable member through the inter-member divided region. The protrusions are formed at first and second positions that contact the three-dimensional object through a region, and at the third and fourth positions that face the first and second positions through the inter-member region. Processing the three-dimensional CAD data so as to form two holes respectively for accommodating each;
Or
The movable member and the three-dimensional object that contacts the movable member via the inter-member divided area have two holes for accommodating a pivot support shaft for opening and closing, and the movable member is divided into the inter-member divided area. The first and second positions are in contact with the three-dimensional object through the first and second positions, and the holes are respectively formed in the third and fourth positions facing the first and second positions through the inter-member region. Processing the three-dimensional CAD data so as to form two protrusions to be accommodated, respectively;
It further has these.

A CAD data processing program according to an embodiment of the present invention is:
A reception step of receiving an operation input for designating a member included in the three-dimensional object as an excluded member;
The three-dimensional CAD data is processed so as to exclude the specified exclusion member from the three-dimensional object, and a retrofit member (possible to a part of the frame of the three-dimensional object surrounding the space where the exclusion member exists). A guide slit for inserting a flexible plastic, glass plate, acrylic plate, etc.), and the retrofitting member is inserted into at least a portion of the three-dimensional object frame other than the portion provided with the guide slit. Processing the three-dimensional CAD data to form support grooves to be performed;
It further has these.

According to the present invention, it is possible to make it possible to divide the integrated object while producing the target three-dimensional object as an integrated object.

FIG. 1 is a block diagram showing an outline of a CAD data processing apparatus according to Embodiment 1 of the present invention. FIG. 2 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the first embodiment. FIG. 3 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the first embodiment is projected onto a two-dimensional plane. FIG. 4 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the first embodiment is projected onto a two-dimensional plane. FIG. 5 is a projection view in which the three-dimensional CAD data processed by the CAD data processing apparatus according to the first embodiment is projected onto a two-dimensional plane. FIG. 6 is a lamination transition diagram showing the principle of the powder fixing type lamination method. FIG. 7 is a stacking transition diagram illustrating a state in which a three-dimensional object is formed by a three-dimensional printer based on the powder fixing type stacking method using the three-dimensional CAD data processed by the CAD data processing apparatus according to the first embodiment. FIG. 8 is a projection view showing the thickness of the divided area set in the three-dimensional object processed by the CAD data processing apparatus of the first embodiment. FIG. 9 is a block diagram showing an outline of a CAD data processing apparatus according to Embodiment 2 of the present invention. FIG. 10 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the second embodiment. FIG. 11 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the second embodiment is projected onto a two-dimensional plane. FIG. 12 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the second embodiment. FIG. 13 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the second embodiment. FIG. 14 is a block diagram showing an outline of a CAD data processing apparatus according to Embodiment 3 of the present invention. FIG. 15 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the third embodiment. FIG. 16 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the third embodiment is projected onto a two-dimensional plane. FIG. 17 is a projection view in which three-dimensional CAD data provided with protrusions and holes is projected onto a two-dimensional plane. FIG. 18 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the third embodiment. FIG. 19 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the third embodiment is projected onto a two-dimensional plane. FIG. 20 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the third embodiment. FIG. 21 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the third embodiment is projected onto a two-dimensional plane. FIG. 22 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the third embodiment. FIG. 23 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the third embodiment is projected onto a two-dimensional plane. FIG. 24 is an exploded perspective view showing a state in which a house in which three-dimensional CAD data is processed by the apparatus or program according to the fourth embodiment is produced as a three-dimensional object with a three-dimensional printer. FIG. 25 is a diagram showing a one-dimensional house three-dimensional model produced in FIG. FIG. 26 is a diagram illustrating a state of the divided surface when the one-dimensional house three-dimensional model illustrated in FIG. 25 is divided. FIG. 27 is a diagram illustrating a state of the dividing surface when the one-dimensional house three-dimensional model illustrated in FIG. 25 is divided. FIG. 28 is a diagram for explaining a state in which the opening and the guide slit are formed in the movable member with holes shown in FIG. FIG. 29 is a diagram illustrating a state in which an opening, a sliding door as a movable member, and a guide slit are formed on the wall. FIG. 30 is a diagram illustrating a state in which a large-sized three-dimensional model is divided. FIG. 31 is a flowchart showing an example of processing for the seventh embodiment executed by the CAD data processing apparatus of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<Embodiment 1>
FIG. 1 is a block diagram showing an outline of a CAD data processing apparatus according to Embodiment 1 of the present invention. As shown in the figure, the CAD data processing apparatus 100 includes a control unit (CPU) 110, an input unit 120, an output unit 130, a communication unit 140, a storage unit 150, and a display unit 160. The storage unit 150 stores a gap width GAP suitable for dividing the target object with a target three-dimensional printer in advance. The control unit 110 includes an acquisition unit 111, an input reception unit 112, a processing unit 113, and a three-dimensional output control unit 114. The acquisition unit 111 acquires three-dimensional CAD data of a three-dimensional object. The three-dimensional CAD data is created by the CAD system CD1, is received by the communication unit 140 via the network NET, and is finally passed to the acquisition unit 111. The acquired three-dimensional CAD data is modeled as a three-dimensional model in a three-dimensional space by the three-dimensional output control unit 114, and this three-dimensional model (three-dimensional object) is projected onto a two-dimensional plane (projection plane). The display unit 160 displays the projected “three-dimensional object”. The input receiving unit 112 receives an operation input for designating one or more division instruction planes for dividing a three-dimensional object. Specifically, for example, the user designates a division instruction screen for dividing the solid object displayed on the display unit 160 via the input unit 120 and the mouse MS, and the input reception unit 112 is designated. Accept the split instruction surface. The processing unit 113 processes the three-dimensional CAD data so as to divide (cut) the three-dimensional object in the divided area defined by the division instruction surface and the gap width.

The gap width GAP is defined according to the three-dimensional modeling resolution of a three-dimensional printer on which a three-dimensional object is printed. For example, when processing for the three-dimensional printer PRN1, a numerical value corresponding to the three-dimensional modeling resolution of the printer is defined as the gap width and stored in the storage unit 150 in advance. Similarly, when processing for the three-dimensional printer PRN2, a numerical value corresponding to the three-dimensional modeling resolution of the printer is defined as a gap width and stored in the storage unit 150 in advance. Several gap widths are stored in the storage unit 150, an identifier indicating an output destination printer is received from the input receiving unit 112 or the input unit 120, and an optimum gap is used for each printer according to the identifier. Thus, it is also possible to determine the divided region (more precisely, the thickness of the divided region in the vertical direction from the dividing surface). For example, the three-dimensional printing resolution of a three-dimensional printer is as follows: In the case of a three-dimensional printer that uses powder as a base material and solidifies a part of the base material with a solidifying agent, the thickness of the base material spray layer once , And at least one of the penetration thickness of the solidifying agent (modeling agent, modeling ink). In addition, when a three-dimensional object is three-dimensionally modeled with a three-dimensional printer, it is preferable to make the gap width as thin as possible in order to make it appear as if it is an integral object.

It is desirable to store the acquired three-dimensional CAD data, the division instruction plane, information on the position and shape of the divided area, and the three-dimensional CAD data after processing as intermediate data in the storage unit 150. The three-dimensional output control unit 114 is a device driver of the three-dimensional printer PRN1 or a functional unit having the function, and the target three-dimensional object is sent via the output unit 130 using the three-dimensional CAD data subjected to the division processing. And output (three-dimensional printing) to the three-dimensional CAD printer PRN1. Via the three-dimensional output control unit 114 or the communication unit 140, the processed three-dimensional CAD data may be transmitted / output to external terminals PC1 and PC2 and stored on these terminals. . In this way, the generated information and intermediate data and acquired data are transmitted to the outside, displayed on the display unit, and the generated information and intermediate data and acquired data are stored in the storage unit. It should be noted that other embodiments described below are possible as well. The CAD data processing apparatus 100 is a general-purpose computer, a special-purpose computer, a server, a computer such as a PC, or a program that implements (executes) the functional units and processing procedures (methods) of this system on the computer. It is preferable to construct a CAD data processing device on a computer by holding the module in a CPU or storage unit of the computer or reading it from an external server or storage, and the same applies to each of the following embodiments. It is.

FIG. 2 is a flowchart showing an example of processing executed by the CAD data processing apparatus according to the first embodiment. As shown in the figure, in step S11, the storage unit stores the gap width. This step does not need to be executed every time, but only needs to be executed once to store an appropriate gap width. Next, in step S12, the acquisition unit acquires three-dimensional CAD data of the three-dimensional object. Subsequently, in step S13, the input receiving unit receives an operation input for designating one or more division instruction surfaces for dividing the three-dimensional object. In step S14, the processing unit processes the three-dimensional CAD data so as to divide (cut) the three-dimensional object in the divided area defined by the division instruction surface and the gap width. Finally, in step S15, the three-dimensional output control unit outputs the processed three-dimensional data to an external three-dimensional printer or CAD system. The processed three-dimensional data may display a divided (cut) three-dimensional object on the display unit or store it in the storage unit 150 in order to confirm the division state.

FIG. 3 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the first embodiment is projected onto a two-dimensional plane. As shown in (a) in the figure, the three-dimensional CAD data is obtained by modeling a cylindrical three-dimensional object OB11. The user designates a desired location with a position pointing device (mouse), and the designated location is designated to be divided. It becomes surface CP. Since the division instruction surface CP is a plane having no thickness, the cylinder cannot be divided (cut) as it is. Therefore, as shown in (b) of the figure, the present apparatus sets the divided region CR with the gap width stored in the storage unit and displays the divided region with reference to the designated divided instruction surface CP. The three-dimensional object OB11 is projected by.

FIG. 4 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus of Embodiment 1 is projected onto a two-dimensional plane. FIG. 4A shows the three-dimensional object shown in FIG. 3B again in order to understand the transition state of the process. FIG. 4B shows a case where the three-dimensional CAD data is processed so as to divide (cut) the three-dimensional object OB11 at the set divided region CR, and the three-dimensional object OB12 is projected with the processed data. . As a result of the division, the three-dimensional object OB12 is divided into an upper three-dimensional object OB12u and a lower three-dimensional object OB12d separated by a gap width. Since the gap width is only a small thickness as a whole, if this is modeled / printed with a three-dimensional printer, a cylinder like an integral object can be obtained. Of course, for example, in the case of a 3D printer of a type in which powder is used as a substrate and a part of the substrate is solidified with a solidifying agent, printing / stereoscopic modeling is performed using the 3D CAD data after processing. For example, since the base material (powder) in the region does not solidify, it looks as if it is a single object, but it can be easily divided into the upper three-dimensional object OB12u and the lower three-dimensional object OB12d, and the original one is restored. What can be returned like an object can be manufactured.

FIG. 5 is a projection view in which the three-dimensional CAD data processed by the CAD data processing apparatus according to the first embodiment is projected onto a two-dimensional plane. On the upper side of FIG. 5, a state in which the three-dimensional object OB12 including the divided upper three-dimensional object OB12u and the lower three-dimensional object OB12d is formed by a three-dimensional printer using the “lamination method” is illustrated. The lower solid object OB12d is formed by sequentially solidifying [m−1] slice surfaces SL1 (more precisely, a slice region having a slight thickness), SL2, SL3 to SLm−1 into a circular shape. On the slice surface SLm−1, the two layers of the slice surfaces SLm and SLm + 1 are regions that are not solidified. In this embodiment, the two slice planes SLm and SLm + 1 are not solidified areas. However, it is desirable to make the non-solidified areas as thin as possible, and depending on the characteristics of the 3D printer used during printing / modeling, only one slice plane is used. Note that it is also possible to divide a three-dimensional object by setting to a region that does not solidify. In the case of the powder-fixing type lamination, the powder base material is left without being solidified. These two slice planes are areas corresponding to the divided areas. Then, on the slice surfaces SLm and SLm + 1 that have not been solidified, only [n− (m + 1)] pieces from the slice surface SLm + 2 to the slice surface SLn are sequentially solidified on the circle to form the upper three-dimensional object OB12u. The In this manner, a three-dimensional object OB12sl that can be divided into an upper part and a lower part can be formed as if it were an integrated object.

The lower side of FIG. 5 shows a state in which the three-dimensional object OB10 before the division operation is formed by a three-dimensional printer using the “lamination method” for comparison. The three-dimensional object OB10sl is formed by sequentially solidifying [n1] slices on a slice plane SL1 (more precisely, a slice region having a slight thickness), SL2, SL3 to SLn on a circle. Since all n slice planes are solidified, they are connected to each other and cannot be divided. Thus, since the divided area is a small thickness from the whole, the three-dimensional object OB10sl that cannot be divided has the same appearance as the three-dimensional object OB12sl that can be divided. Therefore, when the user creates one solid object OB10sl, when the two objects are combined, the user can observe the whole solid object, and when divided by the divided area, the user can observe the two divided appearances. Is possible. As will be described in detail later, it is possible to observe the cross-sectional structure and confirm tactile sensations such as irregularities by attaching patterns, shapes, symbols, and the like to the divided surfaces. Moreover, when the room is a partitioned room, it is possible to observe the room layout.

FIG. 6 is a lamination transition diagram showing the principle of the powder fixing type lamination method. Lamination proceeds in the order of the arrows from the upper left. First, a slice layer is formed on the bottom of a housing (not shown), and the powder to be formed is spread over the entire surface. A solidifying agent having a function of solidifying a powder base material is applied only to an elliptical portion (portion to be solidified) that forms a three-dimensional object on the slice surface by using, for example, an ink jet technique. Further, a coloring agent or an agent such as ink is also applied to the portion to be colored together or separately. After that, the powder is again sprayed by an amount corresponding to one layer of the slice surface as in the beginning, and the solidifying agent is applied only to the elliptical part (the part to be solidified) that forms the three-dimensional object. By repeating this and removing the powder PWD that has not solidified, the desired three-dimensional object OB20sl can be obtained. In this example, a truncated cone is created. Note that the three-dimensional object is formed by four slice planes for the convenience of drawing, but in reality, the three-dimensional object is formed by hundreds, thousands, tens of thousands, or even more slice planes. .

FIG. 7 is a stacking transition diagram illustrating a state in which a three-dimensional object is formed by a three-dimensional printer using a powder fixing type stacking method using the three-dimensional CAD data processed by the CAD data processing apparatus according to the first embodiment. This shows how OB12 (OB12u and OB12d sandwiching a divided region) in FIG. 4 is formed by a powder fixing type laminating method. As shown in the figure, a cylinder is formed by laminating sliced surfaces obtained by solidifying a powder base material in a circular shape. And the layer which should become the space | gap set with this apparatus is set as the division | segmentation area | region (powder layer / non-solidified layer) SLpwd. Then, a slice surface solidified into a circular shape is sequentially formed thereon. What is completed is a three-dimensional object OB12sl-pwd that looks as if it were a single object. Since there is a divided region (powder layer / non-solidified layer) SLpwd in the middle, it can be easily divided into an upper three-dimensional object OB12usl and a lower three-dimensional object OB12dsl.

FIG. 8 is a projection view showing the thickness of the divided area set in the three-dimensional object processed by the CAD data processing apparatus of the first embodiment. In (a) in the figure, the thickness of the divided region CR1 of the three-dimensional object OB30 is set to the distance GW1. In (b) in the figure, the thickness (gap width) of the divided region CR2 of the three-dimensional object OB30 is set to a distance GW2 that is thicker than the distance GW1. The three-dimensional objects OB30 and 31 are obtained by setting divided areas on cylinders of the same size (height and radius), but depending on the three-dimensional modeling resolution of a three-dimensional printer on which a three-dimensional object is printed (three-dimensional modeling), Since the thicknesses of the divided regions are respectively defined, different distances GW1 and GW2 are set. For example, the three-dimensional printing resolution of a three-dimensional printer is as follows: In the case of a three-dimensional printer that uses powder as a base material and solidifies a part of the base material with a solidifying agent, the thickness of the base material spray layer once , And at least one of the penetration thickness of the solidifying agent (modeling agent, modeling ink). Alternatively, the user may arbitrarily set the thickness (gap width) of the divided region CR2. Incidentally, the most suitable is that the gap width set based on the 3D modeling resolution and the 3D printer model (model name) are stored in the storage unit in association with each other, depending on the input of the 3D printer model to be used. In other words, the gap width associated with the model is automatically selected, and a divided region in which the gap width is set is set.

<Embodiment 2>
FIG. 9 is a block diagram showing an outline of a CAD data processing apparatus according to Embodiment 2 of the present invention. As shown in the figure, the CAD data processing apparatus 200 includes a control unit (CPU) 210, an input unit 220, an output unit 230, a communication unit 240, a storage unit 250, and a display unit 260. In the storage unit 250, the gap width GAP suitable for dividing the target object with the target three-dimensional printer is stored in the same manner as in the first embodiment. The pattern data PD to be pasted on the surface of the three-dimensional object in contact with the divided area is stored. Each of the pattern data PD is one or two selected from the group consisting of a color, a pattern, a character, a symbol, a mark, a figure, a reinforcing bar diagram, a structural sectional view, a map, a design drawing, a wiring diagram, and a three-dimensional shape. Consists of more than one. The control unit 210 includes an acquisition unit 211, an input reception unit 212, a processing unit 213, and a three-dimensional output control unit 214. The acquisition unit 211 acquires three-dimensional CAD data of a three-dimensional object. The three-dimensional CAD data is created by the CAD system CD1, is received by the communication unit 240 via the network NET, and is finally passed to the acquisition unit 211. The acquired three-dimensional CAD data is modeled as a three-dimensional model in a three-dimensional space by the three-dimensional output control unit 214, and this three-dimensional model (three-dimensional object) is projected onto a two-dimensional plane (projection plane). The display unit 260 displays the projected “three-dimensional object”.

<The input reception part 212 receives the operation input which designates the 1 or more division | segmentation instruction | indication surface which divides | segments a solid object. Specifically, for example, the user designates a division instruction screen for dividing the solid object displayed on the display unit 260 via the input unit 220 and the mouse MS, and the input receiving unit 212 is designated. Accept the split instruction surface. The processing unit 213 processes the three-dimensional CAD data so as to divide (cut) the three-dimensional object in the divided area defined by the division instruction surface and the gap width. The processing unit 213 further processes the three-dimensional CAD data so that at least one pattern data is pasted on a surface in contact with the divided region of at least one of two or more objects obtained by dividing (cutting) the three-dimensional object. To do.

FIG. 10 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the second embodiment. In this flowchart, the boxes of steps S21 and S25 different from the steps shown in FIG. 2 of the first embodiment are indicated by dotted lines. The steps of the embodiment 2 including the same words as the words of the steps of the embodiment 1 perform the same processing unless otherwise specified. As shown in the figure, in step S21, the storage unit stores “gap width” and “pattern data”. This step does not need to be executed every time, and it is sufficient to execute it once and store an appropriate gap width and some pattern data. Each of the pattern data is one selected from the group consisting of a color, a pattern, a character, a symbol, a mark, a figure, a reinforcing bar diagram, a structural sectional view, a map, a design drawing, a wiring diagram, and a three-dimensional shape. It consists of two or more things. Next, steps S22 to S24 are performed, which are the same as the steps S12 to S14 of the first embodiment. In step S25, the processing unit further processes the three-dimensional CAD data so that at least one pattern data is pasted on the surface in contact with the divided region. Finally, in step S26, the three-dimensional output control unit outputs the processed three-dimensional data to an external three-dimensional printer or CAD system. A three-dimensional object produced / modeled with processed three-dimensional data is suitable for confirming the structure and properties of the cut portion.

FIG. 11 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the second embodiment is projected onto a two-dimensional plane. As shown in (a) in the figure, this apparatus sets a divided region CR with a gap width stored in the storage unit with reference to the designated division instruction surface, and displays the three-dimensional object in a state where the divided region is displayed. OB21 is projected. As shown in (b) in the figure, the processing unit of this apparatus is configured to paste pattern data on the surface BF1 on the upper three-dimensional object OB22u side and the BF2 on the lower three-dimensional object OB22d side that are in contact with the divided region CR. Further process the dimensional CAD data. In this way, it looks like an integrated object, but it can be easily divided into the upper three-dimensional object OB22u and the lower three-dimensional object OB22d, and can be returned to the original object as it was. Furthermore, it is possible to provide a three-dimensional object that can immediately understand the internal structure and the internal properties of the three-dimensional object by pasting pattern data on the divided surface when it is divided. .

FIG. 12 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the second embodiment. Boxes in steps S33 and S35 different from the steps shown in FIG. 10 are indicated by dotted lines. The steps of the embodiment 2 including the same words as the words of the steps of the embodiment 1 perform the same processing unless otherwise specified. As shown in the figure, in step S33, the input receiving unit performs an operation input designating one or more division instruction surfaces for dividing the three-dimensional object, and a member to be exposed on at least one surface in contact with the divided region. It accepts operation input that specifies the type. After completing the process of step S34, in step S35, the processing unit reads the corresponding pattern data from the plurality of pattern data according to the type of the designated member, and at least one pattern data is divided into divided areas. The three-dimensional CAD data is further processed so as to be pasted on the surface in contact with. The pattern data is stored in the storage unit in association with the document of the member and the pattern data in the following format, for example.
<Pattern data>
Types of members Pattern data Reinforcement 1 Pattern indicating reinforcement of reinforcement 1 Reinforcement 2 Color and pattern indicating reinforcement of reinforcement 2 Reinforcement 3 Pattern and shape indicating reinforcement of reinforcement 3 Shape and pattern shown as)
Wall containing heat insulating material 1 Pattern showing a wall containing heat insulating material 1 Wall containing heat insulating material 2 Pattern showing a wall containing heat insulating material 2 Pattern showing RC (or symbol or character information)
Steel concrete A pattern (or symbol or character information) showing steel concrete
Gravel A pattern (or symbol or text information) showing gravel.
Gravel An uneven shape (and symbols and text information) that indicates gravel.
Gravel Grained shape and pattern showing gravel Gravel Gravel Hemispherical shape and pattern showing gravel Asphalt Color and pattern showing asphalt (or symbol or character information)
Concrete Colors and patterns indicating concrete (or symbols and text information)

Finally, in step S36, the three-dimensional output control unit outputs the processed three-dimensional data to an external three-dimensional printer or CAD system. The three-dimensional object produced / modeled with the processed three-dimensional data is suitable for confirming the structure and properties of the cutting part, as in FIG. 10. It is possible to automatically paste the pattern of the cut surface simply by specifying the type.

FIG. 13 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the second embodiment. Boxes in steps S45 and S46 different from the steps shown in FIG. 12 are indicated by dotted lines. The steps of the embodiment 2 including the same words as the words of the steps of the embodiment 1 perform the same processing unless otherwise specified. As shown in the figure, in step S45, the processing unit obtains pattern data to be arranged on the surface exposed when the member is cut from the attribute information of the CAD data of the member divided on the division instruction surface. Identify. Many CAD data have attribute information of the member (the object to be drawn) with names such as component information and property information, and the user can easily add the attribute information to the CAD data of the member. It is also possible to keep it. This flowchart shows a configuration in which a pattern or shape of a cut surface is automatically added using attribute information added in this way or added by a user.

After executing the process of step S45, in step S46, the processing unit identifies corresponding pattern data among the plurality of pattern data from the attribute information, and at least one pattern data is placed on the surface in contact with the divided region. The three-dimensional CAD data is further processed to be pasted. Here, even if pasting, the pattern data includes not only the surface but also the shape data of the unevenness. Therefore, when the shape data is included, the data in the vicinity of the surface in contact with the divided region is also corrected / replaced. Please note that. Finally, in step S46, the three-dimensional output control unit outputs the processed three-dimensional data to an external three-dimensional printer or CAD system. The three-dimensional object produced / modeled with the processed three-dimensional data is suitable for confirming the structure and properties of the cut part as in FIGS. 10 and 12, but in the process of this flowchart, By using the attribute information added to the member crossed by the cut surface, it is possible to automatically add a pattern or shape of the cut surface. The user can dramatically improve the convenience of the user because the apparatus automatically pastes the pattern, shape, symbol, character information, etc. of the cut surface only by specifying the location where the user wants to cut.

<Embodiment 3>
FIG. 14 is a block diagram showing an outline of a CAD data processing apparatus according to Embodiment 3 of the present invention. As shown in the figure, the CAD data processing apparatus 300 includes a control unit (CPU) 310, an input unit 320, an output unit 330, a communication unit 340, a storage unit 350, and a display unit 360. The storage unit 350 stores a gap width GAP suitable for dividing a target object with a target three-dimensional printer, and pattern data PD to be pasted on a three-dimensional object-side surface in contact with the divided area. This is the same as in the second embodiment, but in the third embodiment, the two or more objects obtained by dividing (cutting) the three-dimensional object are to be fitted to each other to be provided on both surfaces in contact with the divided area. Is stored. For example, one is a recess / hole and the other is a protrusion / projection that can be accommodated in the recess. According to this configuration, after dividing / separating the three-dimensional object, “positioning” can be facilitated when the objects are combined again to make an apparent one-piece, and further, “slip” on the dividing surface, in particular division. It is possible to effectively prevent “slip” when the surface is specified obliquely. The control unit 310 includes an acquisition unit 311, an input reception unit 312, a processing unit 313, and a three-dimensional output control unit 314. The acquisition unit 311 acquires three-dimensional CAD data of a three-dimensional object. The three-dimensional CAD data is created by the CAD system CD1, is received by the communication unit 340 via the network NET, and is finally passed to the acquisition unit 311. The acquired three-dimensional CAD data is modeled as a three-dimensional model in a three-dimensional space by the three-dimensional output control unit 314, and the three-dimensional model (three-dimensional object) is projected onto a two-dimensional plane (projection plane). The display unit 360 displays the projected “three-dimensional object”.

<The input reception part 312 receives the operation input which designates the 1 or more division | segmentation instruction | indication surface which divides | segments a solid object. Specifically, for example, the user designates a division instruction surface for dividing the solid object displayed on the display unit 360 via the input unit 320 and the mouse MS, and the input receiving unit 312 is designated. Accept the split instruction surface. The processing unit 313 processes the three-dimensional CAD data so as to divide (cut) the three-dimensional object in the divided area defined by the division instruction surface and the gap width. The processing unit 313 further processes the three-dimensional CAD data so that at least one pattern data is pasted on a surface in contact with the divided region of at least one of the two or more objects obtained by dividing (cutting) the three-dimensional object. To do. In addition, the processing unit 313 is configured to provide one or two shapes to be fitted to each other on both surfaces in contact with the divided regions of two or more objects obtained by dividing (cutting) the three-dimensional object. The three-dimensional CAD data is further processed.

FIG. 15 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the third embodiment. In this flowchart, the boxes of steps S51 and S55 different from the steps shown in FIG. 2 of the first embodiment are indicated by dotted lines. The steps of the embodiment 3 including the same words as the words of the steps of the embodiment 1 perform the same processing unless otherwise specified. As shown in the drawing, in step S51, the storage unit stores “gap width” and “shape data for a member to be fitted (concave, convex, etc.)”. This step does not have to be executed every time, and it is sufficient to execute it once and store an appropriate gap width and some shape data. Next, steps S52 to S54 are performed, which are the same as the steps S12 to S14 of the first embodiment. In step S <b> 55, the processing unit provides one or two shapes that are fitted to each other on both surfaces that are in contact with the divided regions of the two or more objects that are divided (cut) of the three-dimensional object. Thus, the three-dimensional CAD data is further processed. Finally, in step S56, the three-dimensional output control unit outputs the processed three-dimensional data to an external three-dimensional printer or CAD system. A three-dimensional object produced / modeled with processed three-dimensional data is suitable for confirming the structure and properties of the cut portion. After dividing / separating the three-dimensional object, it is possible to easily “position” when the objects are combined (fitted together) again to form an apparent one-piece. That is, by making the positioning of the combination accurate, it can be restored again as if it were the original one. Furthermore, it is possible to effectively prevent “slip” on the split surface, particularly “slip” when the split surface is specified obliquely.

FIG. 16 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the third embodiment is projected onto a two-dimensional plane. (A) in the figure is provided with projections CV1 and CV2 on the surface in contact with the divided area of the three-dimensional object OB31 divided (cut). The arrangement of the protrusions CV1 and CV2 can be specified by the user, but usually, for example, it is preferable to automatically provide the corner portion and the opposite side of the corner portion. (B) in the figure is provided with holes CC1 and CC2 on the surface in contact with the divided area of the three-dimensional object OB32 obtained by dividing (cutting) the three-dimensional object.

FIG. 17 is a projection view in which three-dimensional CAD data provided with protrusions and holes is projected onto a two-dimensional plane. As shown in the figure, the three-dimensional object OB31-s provided with the protrusions CV1 and CV2 and the three-dimensional object OB32-s provided with the holes CC1 and CC2 are closely combined at the cut surface to form an apparent one-piece. The shape is such that “positioning” can be facilitated.

FIG. 18 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the third embodiment. In this flowchart, the boxes of steps S61, S63, and S65 different from the steps shown in FIG. 2 of the first embodiment are indicated by dotted lines. The steps of the embodiment 3 including the same words as the words of the steps of the embodiment 1 perform the same processing unless otherwise specified. As shown in the figure, in step S61, the storage unit stores “gap width” and “shape data for accommodating the pivot support shaft attached later”. Specifically, the shape data contains shape data (dimension data) of the hole, but the scale data is used by appropriately changing the scale according to the thickness of the movable member provided with the hole. This step does not have to be executed every time, and it is sufficient to execute it once and store an appropriate gap width and some shape data. Note that the “first gap width” for the divided area is defined according to the three-dimensional modeling resolution of the three-dimensional printer on which the three-dimensional object is to be printed, but the “second gap” used when setting the movable member. As the “gap width”, it is necessary to use a gap defined by a distance (clearance) that does not restrict the opening and closing of the movable member. Therefore, the second gap width depends on the shape and thickness of the movable member and the main body side with which the movable member is in contact, but tends to be larger than the first gap width. The “distance at which the movable member can be opened and closed” is specifically determined by factors such as the installation position of the rotation support shaft and the thickness of the movable member.

Next, the processes of steps S62 and S63 are performed, which are the same as the processes of processes S12 and S13 of the first embodiment. Next, in step S63, the input receiving unit receives an operation input for designating one or more division instruction surfaces for dividing the three-dimensional object, and an operation input for designating the “movable member”. Then, after performing the process of step S64, in step S65, the processing unit determines that the designated movable member is a member-partitioned area defined by the surface where the designated movable member is in contact with a member of a three-dimensional object other than the movable member, and the gap width. Then, the three-dimensional CAD data is processed so as to be divided (cut) from the three-dimensional object, and the movable member and the three-dimensional object contacting the movable member via the inter-member divided region are opened and closed. A hole in which at least one retrofitting pivot support shaft is to be received is a first position where the movable member contacts the three-dimensional object via the inter-member divided area, and the three-dimensional object contacts the movable member via the inter-member divided area. Then, the three-dimensional CAD data is processed so as to be formed at the second position where they touch each other. Finally, in step S66, the three-dimensional output control unit outputs the processed three-dimensional data to an external three-dimensional printer or CAD system. Since the three-dimensional object created / modeled with the processed three-dimensional data has holes formed on the movable member and the main body, it is possible to easily attach the rotation support shaft attached later and move easily. It is possible to provide a three-dimensional model provided with a member (typically a door).

FIG. 19 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the third embodiment is projected onto a two-dimensional plane. A typical example of a three-dimensional object provided with a movable member is a building such as a house or a building. However, for convenience of drawing and explanation, a description will be given in a mode in which a door is installed as a movable member on one outer wall. It is assumed that a rectangular frame OCP1 indicating a movable member is displayed on the surface of the three-dimensional object OB40. As shown to (a) in a figure, a user uses the input part (mouse etc.) and the place and display element (in this example, a rectangular frame) which wants to process the displayed solid object OB40 as a "movable member". OCP1) is specified. Of course, a rectangular frame or other figure (arbitrary figure such as a circle or triangle) and its size may be designated with a mouse or the like (for example, the coordinates of the start point and end point of the rectangle are designated with the mouse). The input receiving unit receives the operation input, and the processing unit is a divided region between the members defined by the surface where the designated movable member is in contact with the member of the three-dimensional object other than the movable member and the gap width. Three-dimensional CAD data is processed so as to be divided (cut).

In this way, based on the area of the designated rectangular frame OCP1, the opening OP40 (hole) is installed at the location, and the movable member DR1 (door) is installed in the opening OP40. (B) in the drawing is provided with holes H1 and H2 in the same rotating shaft (not shown) for accommodating a later-mounted rotating support shaft on the surface of the opening OP40 that is in contact with the movable member. This shows a state in which the opening OP40-h is processed. (C) in the drawing is provided with holes H3 and H4 for accommodating a later-mounted rotation support shaft on the same rotation shaft (not shown) on the surface of the movable member DR1 in contact with the main body. It shows a state in which the movable member DR1-h is processed. Two pivotal support shafts retrofitted in the holes H3 and H4 of the movable member DR1-h with holes processed in this way (a support shaft with an extendable spring mechanism is preferable for easy accommodation). It is desirable to mount (accommodate) and to mount (accommodate) the rotation support shaft in each of the holes H1 and H2 of the apertured opening OP40-h. The holes H3 and H4 may be one communication hole. Further, although the rotation support shaft is preferably retrofitted, the processed portion is positioned at the position of the hole so that the processed portion is accommodated in both holes as a so-called “fitting rotation support shaft” that is not connected to the main body side. It is also possible to process the three-dimensional data so that the “rotating support shaft member” is three-dimensionally formed.

FIG. 20 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the third embodiment. This flowchart is a modification of FIG. 18 and shows an example in which a protrusion serving as a rotation support shaft is directly provided on the movable member or the main body side. In this flowchart, the boxes in steps S71 and S75 different from the steps shown in FIG. 18 are indicated by dotted lines. The steps of the embodiment 3 including the same words as the words of the steps of the embodiment 1 perform the same processing unless otherwise specified. As shown in the figure, in step S71, the storage unit stores “gap width” and “shape data of the projection functioning as a rotation support shaft and a hole for accommodating the projection”. Specifically, the shape data contains the shape data (dimension data) of the protrusions and holes, but the scale is reduced according to the thickness of the movable member that provides the holes and protrusions and the body-side member that will be the wall. Are used as appropriate. This step does not have to be executed every time, and it is sufficient to execute it once and store an appropriate gap width and some shape data. Note that the “first gap width” for the divided area is defined according to the three-dimensional modeling resolution of the three-dimensional printer on which the three-dimensional object is to be printed, but the “second gap” used when setting the movable member. As the “gap width”, it is necessary to use a gap defined by a distance (clearance) that does not restrict the opening and closing of the movable member. Therefore, the second gap width is larger than the first gap width. The “distance at which the movable member can be opened and closed” is specifically determined by factors such as the installation position of the rotation support shaft and the thickness of the movable member.

Next, steps S72, S73, and S74 are performed, which are the same as the processes S12, S13, and S14 of the first embodiment. And after performing the process of these steps, in step S75, a process part is a member prescribed | regulated by the surface where the designated movable member contacts the member of the three-dimensional object other than this movable member, and the said gap width | variety. The three-dimensional CAD data is processed so that the three-dimensional object is divided (cut) from the three-dimensional object in an inter-partition area, and the movable member and the three-dimensional object that contacts the movable member via the inter-partition area Two projecting portions that function as pivot support shafts that can be freely opened and closed are formed at first and second positions where the movable member contacts the three-dimensional object via the inter-member divided region. The three-dimensional CAD data is processed so that two holes for accommodating each of the protrusions are formed in the third and fourth positions facing the first and second positions through the inter-member region, respectively. Or Has two holes for accommodating a rotation support shaft for opening and closing the movable member and the three-dimensional object contacting the movable member through the inter-member divided region, and the movable member is disposed between the members. The holes are formed at first and second positions that contact the three-dimensional object via the divided areas, and at the third and fourth positions facing the first and second positions via the inter-member area. The three-dimensional CAD data is processed so as to form two protrusions to be accommodated in each. Finally, in step S66, the three-dimensional output control unit outputs the processed three-dimensional data to an external three-dimensional printer or CAD system. The three-dimensional object produced / modeled with the processed three-dimensional data is connected to the three-dimensional object on the main body side so that the movable member can be freely opened and closed by the protrusion functioning as the rotation support shaft. It is possible to provide a three-dimensional model that can produce “movement” very easily. When powder is used as a base material, the powder left without solidifying remains in such movable members and the holes in the vicinity thereof, but these residual powders are compressed air with an air gun or the like. It is preferable to blow off by spraying on the part. In this embodiment and other embodiments as well, it is preferable that the air gun is blown away by jetting compressed air in the divided region and the fitting shape formed in the vicinity thereof.

FIG. 21 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the third embodiment is projected onto a two-dimensional plane. A typical example of a three-dimensional object provided with a movable member is a building such as a house or a building. For convenience of drawing and explanation, a description will be given in a mode in which a door (opening / closing member) is installed as a movable member on one outer wall. It is assumed that a rectangular frame OCP2 indicating a movable member is displayed on the surface of the three-dimensional object (outer wall) OB50. As shown to (a) in a figure, a user uses the input part (mouse etc.) and the place and display element (in this example, a rectangular frame) which wants to process the displayed solid object OB50 as a "movable member". OCP2) is specified. Of course, a rectangular frame or other figure (arbitrary figure such as a circle or triangle) and its size may be designated with a mouse or the like (for example, the coordinates of the start point and end point of the rectangle are designated with the mouse). The input receiving unit receives the operation input, and the processing unit is a divided region between the members defined by the surface where the designated movable member is in contact with the member of the three-dimensional object other than the movable member and the gap width. Three-dimensional CAD data is processed so as to be divided (cut). In this way, based on the area of the designated rectangular frame OCP2, the opening OP50 (hole) is installed at the location, and the movable member DR2 (door) is installed in the opening OP50. (B) in the drawing is provided with holes H5 and H6 in the same rotating shaft (not shown) for accommodating the protruding portion functioning as a rotating support shaft on the surface of the opening OP50 that contacts the movable member side. This shows a state of processing into a holed opening OP50-h. (C) in the drawing is provided with projections PRG1 and PRG2 functioning as pivot support shafts on the same pivot shaft (not shown) on the surface of the movable member DR2 that is in contact with the main body. It shows how it is processed into DR2-h. The protrusions PRG1 and PRG2 of the holed movable member DR2-prg thus processed are accommodated in the holes H5 and H6, respectively, at the time of printing / three-dimensional modeling by the three-dimensional printer. In addition, the structure which forms a hole in a movable member and forms a projection part in the opening part by the side of a main body is also possible. In that case, the hole of the movable member can be formed in one communication hole, and the protrusion on the main body side can be a bridge that connects both surfaces instead of the protrusion. is there.

FIG. 22 is a flowchart illustrating an example of processing executed by the CAD data processing apparatus according to the third embodiment. This flowchart is a modification of FIG. 18, in which a member such as a transparent window or sliding door glass in a three-dimensional object is specified as an exclusion portion, an opening is formed in a region occupied by the exclusion portion, and the opening This shows a method for forming guide slits and support grooves for inserting and holding a transparent member attached later. In this flowchart, the boxes of steps S81, S83, and S84 different from the steps shown in FIG. 18 are indicated by dotted lines. The steps of the embodiment 3 including the same words as the words of the steps of the embodiment 1 perform the same processing unless otherwise specified. As shown in the figure, in step S81, the storage unit stores “gap width” and “shape data of guide slit and support groove”. Specifically, the shape data contains window frame shape data and guide slit shape data (dimension data) for inserting a transparent member (window) to be retrofitted into the window frame. ) And the thickness of the member on the main body side that will be the wall on which the window is provided. This step does not have to be executed every time, and it is sufficient to execute it once and store an appropriate gap width and some shape data.

In this flowchart, the processes of steps S82 and S84 are performed, which are the same as the processes of processes S12 and S14 of the first embodiment. After performing the process of step S83, in step S83, the input receiving unit receives an operation input for designating a division instruction surface and an “exclusion member”. After executing the process of step S84, in step S85, the processing unit processes the three-dimensional CAD data so as to exclude the designated exclusion member from the three-dimensional object, and further, the space where the exclusion member exists. A guide slit for inserting the retrofit member is formed in a part of the frame of the three-dimensional object surrounding the frame, and a support groove into which the retrofit member is to be inserted is formed in a portion other than the portion of the three-dimensional object frame where the guide slit is provided. 3D CAD data is processed. Finally, in step S86, the three-dimensional output control unit outputs the processed three-dimensional data to an external three-dimensional printer or CAD system. A transparent plastic plate (not shown) is inserted as a retrofit member from the guide slit as a retrofit member into the three-dimensional object produced / modeled with the processed three-dimensional data. The plastic plate is supported by the support groove. The plastic plate is slid horizontally or vertically along the support groove (here, it functions as a “rail”), as if it is a “sliding door” or “window”. It is also possible to produce as follows. When the retrofitting member is slid in this way, it is preferable to use a low-resistance fluororesin member so that the sliding surface is easily slid with a roller. In this way, in this configuration, it is possible to provide a three-dimensional model that can produce a transparent window or produce a “movement” in the horizontal or vertical direction of the transparent window very easily.

FIG. 23 is a projection view in which three-dimensional CAD data processed by the CAD data processing apparatus according to the third embodiment is projected onto a two-dimensional plane. A typical example of a three-dimensional object provided with a window is a building such as a house or a building. For convenience of drawing and explanation, a three-dimensional object will be described in a data processing mode for installing a window on one outer wall. As a premise, a rectangular frame indicating a window member is displayed on the surface of the three-dimensional object (outer wall) OB60. As shown to (a) in a figure, a user uses the input part (mouse etc.) and the place and display element (this example) which wants to process (namely, exclude) the displayed solid object OB60 as a "window member" among them. Then, the rectangular frame OCP2) is designated as the exclusion part EXD. Of course, a rectangular frame or other figure (arbitrary figure such as a circle or triangle) and its size may be designated with a mouse or the like (for example, the coordinates of the start point and end point of the rectangle are designated with the mouse). The input receiving unit receives the operation input, and the processing unit processes the three-dimensional CAD data so as to exclude the excluded portion EXD that is the designated exclusion member from the three-dimensional object, and forms an opening OP60 as indicated by OB61. To do. Further, as shown in the opening OP60-gs of the three-dimensional object OB62, a guide slit GS for inserting a retrofitting member is formed in a part of the frame of the three-dimensional object surrounding the space where the exclusion portion EXD existed, Three-dimensional CAD data is processed so as to form a support groove GR into which a retrofitting member is to be inserted in a part frame other than the part where the guide slit is provided. Thus, finally, the opening OP60-gs-gr in which the guide slit GS and the support groove GR are formed are formed. In the opening OP60-gs-gr formed with the guide slit GS and the support groove GR formed in this way, a transparent window member or a sliding door member which is retrofitted can be easily inserted into the opening through the guide slit and supported. It can be supported in the groove.

<Embodiment 4>
FIG. 24 is an exploded perspective view showing a state where a house in which three-dimensional CAD data is processed by the apparatus or program according to the fourth embodiment is manufactured as a three-dimensional object by a three-dimensional printer. As shown in the figure, first, several slice planes SLbtm constituting the floor (foundation) (for the convenience of drawing and explanation, the drawing is made with one slice plane, but actually it is constituted by a plurality of layers. The same applies to the other layers.) 3D printing / three-dimensional modeling. Further, the intermediate slice surfaces SLmdl-1, SLmdl-2, and SLmdl-n including the wall for room division and the outer wall are three-dimensionally modeled. On the nth slice surface SLmdl-n, a divided region (powder layer / non-solidified layer) SLpwd which is a slice surface based on data processed by the present apparatus or program is formed. However, even though this area is called modeling, it is a powder and will be removed later. And several slice surfaces SLcel which comprise a ceiling / roof are modeled on this. In this way, a three-dimensional model of a house that looks like an integral object is completed.

FIG. 25 is a diagram showing a one-dimensional house model produced in FIG. As shown in the figure, the house three-dimensional model Home looks as if it were a single object, but it can easily be divided into a house ceiling part Home1 and a house room split part Home2. It is possible to restore the three-dimensional model Home. In order to help the understanding of the invention, a line is drawn to show the boundary of the slice layer in the figure, but it should be noted that in reality, the line is not visible and looks like a uniform wall. .

FIG. 26 is a diagram showing a state of the divided surface when the one-dimensional house three-dimensional model shown in FIG. 25 is divided. As shown in the figure, the color and pattern of the reinforcing bars RFst arranged horizontally as pattern data are pasted on the surface of the slice surface SLmdl-n in contact with the dividing surface. After the user divides the three-dimensional model, the user can easily understand the internal structure by looking at the pattern drawn on this surface.

FIG. 27 is a diagram showing a state of the divided surface when the one-dimensional house three-dimensional model shown in FIG. 25 is divided. As shown in the figure, the surface of the slice surface SLmdl-n in contact with the divided surface is configured as a slice surface SLmdl-n1 to which another pattern data is pasted this time. As pattern data, the color, pattern, and shape of the reinforcing bars RFbar arranged vertically are pasted to form protrusions. Further, a reinforcing bar symbol RFbar-txt is pasted as a symbol, which describes “D22- @ 200” which is a symbol used by those skilled in the art. This means that 200 rebars with a diameter of 22 mm are laid. After dividing the 3D model, the user can easily draw the 3D model and see or touch the 3D “projection” or “symbol” to easily cut the internal structure of the cutting part or the shape of the internal space. It becomes possible to understand the spatial composition such as room layout. A concave portion is formed on the surface of the house ceiling portion Home1 facing the portion where the protruding portion is configured as a pattern so as to fit the protruding portion. Such protrusions and recesses can also be used as members for positioning during restoration.

<Embodiment 5>
FIG. 28 is a diagram for explaining a state in which the opening and the guide slit are formed in the movable member with holes shown in FIG. As shown in the figure, based on the exclusion portion EXD set by the user at the center of the movable member DR2-prg, the space of the region is excluded and the opening OP is formed. A guide slit GS is formed in the opening OP. By inserting a retrofitted transparent member into the guide slit GS of the movable member DR2-prg-w thus completed, it is possible to form a three-dimensional model such as a door with a window.

<Embodiment 6>
FIG. 29 is a diagram illustrating a state in which an opening, a sliding door as a movable member, and a guide slit are formed on the wall. As shown in the figure, the opening OP-sld is formed by excluding the space of the region based on the exclusion portion set by the user in the center of the wall WW1. Guide grooves (not shown) that support the upper and lower ends of the sliding door and guide the sliding of the sliding door to the left and right are formed at the upper and lower portions of the opening OP-sld. Then, the sliding doors SLD1 and SLD2 are formed in the opening OP-sld. The sliding doors SLD1 and SLD2 of the wall WW2 thus completed can be opened and closed by sliding left and right. In addition, an opening and a guide slit can be formed on the sliding door as shown in FIG. 28 to form a three-dimensional model such as a sliding door with a window.

<Embodiment 7>
FIG. 30 is a diagram illustrating a state in which a large-sized three-dimensional model is divided. As shown in the figure, the wall WW2 has a size that greatly exceeds the printable area CS of the three-dimensional printer used during printing / modeling. The wall WW2 is covered with two printable areas. At this time, there is a method of reducing the size of the wall WW2, which is the target three-dimensional model, but there is a drawback that the force of the three-dimensional model is lacking when the scale is reduced. In such a case, like the wall WW2-div, the divided region CR-auto is installed in the center and divided into a left side wall WW2-1 and a right side wall WW2-r. As shown in FIG. 31, the division area can be set automatically, but can also be set by the user manually specifying the division instruction surface. The left side wall WW2-1 is provided with an arrow-shaped convex part War, and the right side wall WW2-r is provided with an arrow-shaped concave part Wcv having a shape fitting with the convex part War. In this way, it is possible to create a three-dimensional model that can be divided and easily re-coupled (assembled) by fitting the convex portion and the concave portion while being a large-sized three-dimensional model. In this example, it is divided into two, but it is also possible to divide into three or more. In addition, the convex portions and the concave portions here function not only simply fitted together but also function as connecting portions that firmly connect and prevent division after being fitted so that they can be easily determined from the arrow shape. Here, there are only one pair of convex portions and concave portions, but a plurality of pairs may be provided to increase the connection strength. Furthermore, the pattern data and pattern shapes include various shapes such as an arrow shape, a mushroom shape, a fishhook shape (and their punching shapes) that function as such a connecting portion, and the pattern is pasted on a divided portion. It is possible to attach.

FIG. 31 is a flowchart showing an example of processing for the embodiment 7 executed by the CAD data processing apparatus of FIG. As shown in the figure, in step S91, the size (scale) of the solid object and the printable area of the 3D printer used are acquired. Next, in step S92, the processing unit determines whether or not the size of the three-dimensional object is within the printable area. If it falls within the range, in step S95, normal division processing in another embodiment is performed. If not, in step S93, the processing unit automatically sets a divided area to divide the three-dimensional object into a size that fits in one printable area, and three-dimensionally divides (cuts) the three-dimensional object. Process CAD data. Subsequently, in step S94, the processing unit processes the three-dimensional CAD data so as to form a concave portion and a convex portion that are fitted into each other on the main body side in contact with the divided region. Finally, after executing Steps S95 and S94, the processed three-dimensional CAD data is output in Step S96. According to this embodiment, it is possible to create a three-dimensional model that can be easily recombined (assembled) by automatically dividing a large-sized three-dimensional model without scaling and fitting the convex and concave portions together. It becomes.

Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various changes and modifications based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each part, each step, etc. can be rearranged so that there is no logical contradiction, and a plurality of parts, means, steps, etc. can be combined or divided into one. is there. In the embodiment, the present invention has been applied to three-dimensional data such as a cylinder and a house model as a simple structure, but the principle of the present invention is, for example, a building such as a building other than a house, a road, a dam, a tunnel, Three-dimensional models such as underground common trenches and civil engineering structures such as sewers, especially color three-dimensional models are considered as applications. Such three-dimensional models of buildings and civil engineering structures are suitable for use as promotional materials and presentation materials for owners and contractors. In particular, since color 3D objects appeal visually, the field of buildings and civil engineering structures where 3D CAD data processed according to the present invention is 3D-modeled with a 3D printer using the “powder-fixing-type lamination method”. The application to is likely.

Claims

A CAD data processing device,
A storage unit for storing the gap width;
An acquisition unit for acquiring three-dimensional CAD data of a three-dimensional object;
An input receiving unit for receiving an operation input for designating one or more division instruction surfaces for dividing the three-dimensional object;
A processing unit for processing the three-dimensional CAD data so as to divide the three-dimensional object in a divided region defined by the division instruction surface and the gap width;
CAD data processing apparatus having
The CAD data processing device according to claim 1,
The gap width is defined according to a three-dimensional modeling resolution of a three-dimensional printer on which the three-dimensional object is printed.
A CAD data processing apparatus characterized by that.
The CAD data processing device according to claim 1,
The storage unit stores pattern data to be pasted on a surface in contact with the divided region,
The processing unit further processes the three-dimensional CAD data so that at least one pattern data is pasted on a surface of at least one of the two or more divided objects of the solid object in contact with the divided region. ,
A CAD data processing apparatus characterized by that.
The CAD data processing apparatus according to claim 3,
There are a plurality of the pattern data, and the pattern data is associated with each type of member,
The input receiving unit receives an operation input for designating a type of a member to be exposed on at least one surface in contact with the divided region;
The processing part is
Depending on the type of the designated member, the corresponding pattern data of the pattern data is read from the storage unit, and the three-dimensional CAD data is further pasted on at least one surface in contact with the divided area. To process,
A CAD data processing apparatus characterized by that.
The CAD data processing apparatus according to claim 3,
The pattern data is
Consists of one or more selected from the group consisting of color, pattern, character, symbol, mark, figure, bar arrangement, structural cross section, map, design drawing, wiring diagram, and solid shape ing,
A CAD data processing apparatus characterized by that.
The CAD data processing device according to claim 1,
The processing part is
Further processing the three-dimensional CAD data so as to provide at least one shape that fits to both surfaces of the two or more objects that are divided into the three-dimensional object and that are in contact with the divided region;
A CAD data processing apparatus characterized by that.
The CAD data processing device according to claim 1,
The divided region is a flat region or a curved region, or a combination of these,
A CAD data processing apparatus characterized by that.
The CAD data processing device according to claim 1,
The input receiving unit receives an operation input for designating a member included in the three-dimensional object as a movable member;
The processing part is
The designated movable member is divided from the three-dimensional object in a member-divided region defined by the surface that contacts the three-dimensional object member other than the movable member and the gap width, and the movable member functions as the movable member. Processing the three-dimensional CAD data so that it can
A CAD data processing apparatus characterized by that.
The CAD data processing apparatus according to claim 8,
The processing part is
The three-dimensional CAD data is divided so that the designated movable member is divided from the three-dimensional object in a member-divided region defined by a surface that contacts the member of the three-dimensional object other than the movable member and the gap width. A hole that is to be processed and further accommodates at least one post-rotation support shaft for opening and closing the movable member and the three-dimensional object that contacts the movable member via the inter-member divided region. The movable member is formed at a first position where the three-dimensional object comes into contact with the three-dimensional object via the inter-member divided area, and at a second position where the three-dimensional object comes into contact with the movable member via the inter-member divided area. And processing the three-dimensional CAD data.
A CAD data processing apparatus characterized by that.
The CAD data processing apparatus according to claim 8,
The processing part is
The movable member divides the two protrusions functioning as a pivot support shaft for opening and closing the movable member and the three-dimensional object contacting the movable member through the inter-member divided region. The protrusions are formed at first and second positions that contact the three-dimensional object through a region, and at the third and fourth positions that face the first and second positions through the inter-member region. Processing the three-dimensional CAD data so as to form two holes respectively for accommodating each;
Or
The movable member and the three-dimensional object that contacts the movable member via the inter-member divided area have two holes for accommodating a pivot support shaft for opening and closing, and the movable member is divided into the inter-member divided area. The first and second positions are in contact with the three-dimensional object through the first and second positions, and the holes are respectively formed in the third and fourth positions facing the first and second positions through the inter-member region. Processing the three-dimensional CAD data so as to form two protrusions to be accommodated, respectively;
A CAD data processing apparatus characterized by that.
The CAD data processing device according to claim 1,
The input receiving unit receives an operation input for designating a member included in the three-dimensional object as an excluded member;
The processing part is
The three-dimensional CAD data is processed so as to exclude the specified exclusion member from the three-dimensional object, and a retrofit member is inserted into a part of the frame of the three-dimensional object surrounding the space where the exclusion member existed The three-dimensional CAD data is formed so that a support groove into which the retrofitting member is to be inserted is formed in at least a part of the frame of the three-dimensional object other than the part provided with the guide slit. Processing,
A CAD data processing apparatus characterized by that.
A CAD data processing method using a computer,
A storage step of storing the gap width in the storage unit;
An acquisition step of acquiring three-dimensional CAD data of a three-dimensional object;
An input receiving step of receiving an operation input for designating one or more division instruction surfaces for dividing the three-dimensional object;
A processing step of processing the three-dimensional CAD data so as to divide the three-dimensional object in a divided area defined by the division instruction surface and the gap width;
CAD data processing method comprising:
The CAD data processing method according to claim 12,
The gap width is defined according to a three-dimensional modeling resolution of a three-dimensional printer on which the three-dimensional object is printed.
The CAD data processing method characterized by the above-mentioned.
The CAD data processing method according to claim 12,
Further storing in the storage unit pattern data to be attached to the surface in contact with the divided region;
A processing step of further processing the three-dimensional CAD data so that at least one pattern data is pasted on a surface in contact with the divided region of at least one object of the two or more divided objects of the three-dimensional object;
A CAD data processing method, further comprising:
The CAD data processing method according to claim 14,
There are a plurality of the pattern data, and the pattern data is associated with each type of member,
A receiving step for further receiving an operation input for designating a type of a member to be exposed on at least one surface in contact with the divided region;
Depending on the type of the designated member, the corresponding pattern data of the pattern data is read from the storage unit, and the three-dimensional CAD data is further pasted on at least one surface in contact with the divided area. Processing steps to process;
A CAD data processing method, further comprising:
The CAD data processing method according to claim 14,
The pattern data is
Consists of one or more selected from the group consisting of color, pattern, character, symbol, mark, figure, bar arrangement, structural cross section, map, design drawing, wiring diagram, and solid shape ing,
The CAD data processing method characterized by the above-mentioned.
The CAD data processing method according to claim 12,
A processing step of further processing the three-dimensional CAD data so as to provide at least one shape to be fitted to each other on both surfaces of the two or more objects that are divided into the three-dimensional object, which are in contact with the divided region;
A CAD data processing method, further comprising:
The CAD data processing method according to claim 12,
The divided region is a flat region or a curved region, or a combination of these,
The CAD data processing method characterized by the above-mentioned.
The CAD data processing method according to claim 12,
A reception step of receiving an operation input for designating a member included in the three-dimensional object as a movable member;
The designated movable member is divided from the three-dimensional object in a member-divided region defined by the surface that contacts the three-dimensional object member other than the movable member and the gap width, and the movable member functions as the movable member. A processing step for processing the three-dimensional CAD data,
A CAD data processing method, further comprising:
The CAD data processing method according to claim 19,
The movable member has a hole in which at least one retrofitting rotation support shaft for opening and closing the movable member and the three-dimensional object in contact with the movable member via the inter-member divided region is to be opened and closed. The three-dimensional shape is formed so that the three-dimensional object is formed at a first position where the three-dimensional object comes into contact with the movable member via the inter-member divided area, and the second position where the three-dimensional object comes into contact with the movable member via the inter-member divided area. Processing steps for processing CAD data;
A CAD data processing method, further comprising:
The CAD data processing method according to claim 19,
The movable member divides the two protrusions functioning as a pivot support shaft for opening and closing the movable member and the three-dimensional object contacting the movable member through the inter-member divided region. The protrusions are formed at first and second positions that contact the three-dimensional object through a region, and at the third and fourth positions that face the first and second positions through the inter-member region. Processing the three-dimensional CAD data so as to form two holes respectively for accommodating each;
Or
The movable member and the three-dimensional object that contacts the movable member via the inter-member divided area have two holes for accommodating a pivot support shaft for opening and closing, and the movable member is divided into the inter-member divided area. The first and second positions are in contact with the three-dimensional object through the first and second positions, and the holes are respectively formed in the third and fourth positions facing the first and second positions through the inter-member region. Processing the three-dimensional CAD data so as to form two protrusions to be accommodated, respectively;
A CAD data processing method, further comprising:
The CAD data processing method according to claim 12,
A reception step of receiving an operation input for designating a member included in the three-dimensional object as an excluded member;
The three-dimensional CAD data is processed so as to exclude the specified exclusion member from the three-dimensional object, and a retrofit member is inserted into a part of the frame of the three-dimensional object surrounding the space where the exclusion member existed The three-dimensional CAD data is formed so that a support groove into which the retrofitting member is to be inserted is formed in at least a part of the frame of the three-dimensional object other than the part provided with the guide slit. Machining steps, and
A CAD data processing method, further comprising: