JP7169147B2

JP7169147B2 - Three-dimensional modeling method

Info

Publication number: JP7169147B2
Application number: JP2018189334A
Authority: JP
Inventors: 浩子徳永; 利幸澤田
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-04
Filing date: 2018-10-04
Publication date: 2022-11-10
Anticipated expiration: 2038-10-04
Also published as: JP2020055273A

Description

本明細書は、三次元形状を有する部材を造形する三次元造形方法を開示する。 This specification discloses a three-dimensional modeling method for modeling a member having a three-dimensional shape.

特許文献１には、三次元造形装置が開示されている。三次元造形装置は、造形材を供給するヘッドと、ヘッドから供給される造形材を支持するテーブルと、を備える。この三次元造形装置では、テーブルに造形材を供給することによって、ゼロから三次元形状を有する部材を造形する。 Patent Literature 1 discloses a three-dimensional modeling apparatus. A three-dimensional modeling apparatus includes a head that supplies a modeling material, and a table that supports the modeling material supplied from the head. This three-dimensional modeling apparatus models a member having a three-dimensional shape from scratch by supplying a modeling material to a table.

特開２０１５－１９３１２５号公報JP 2015-193125 A

従来の三次元造形装置は、ゼロから三次元形状を有する部材を造形する装置であり、所与の三次元形状を有する部材を利用して所望の三次元形状を有する部材を造形することはできない。例えば、所望の三次元形状を有する部材の造形途中で三次元造形装置が停止してしまった場合、造形途中の中間部材を使用して、所望の三次元形状を有する部材を造形することができない。 A conventional three-dimensional modeling apparatus is an apparatus that models a member having a three-dimensional shape from scratch, and cannot model a member having a desired three-dimensional shape using a member having a given three-dimensional shape. . For example, if the 3D modeling apparatus stops in the middle of modeling a member having a desired three-dimensional shape, the member having the desired three-dimensional shape cannot be modeled using the intermediate member in the middle of modeling. .

本明細書は、第１三次元形状を有する第１部材から第２三次元形状を有する第２部材を造形することができる技術を提供する。 This specification provides techniques that can form a second member having a second three-dimensional shape from a first member having a first three-dimensional shape.

本明細書に開示する三次元造形方法は、第１三次元形状を有する第１部材から第２三次元形状を有する第２部材を造形する三次元造形方法である。三次元造形方法は、第１部材の第１三次元形状と第２部材の第２三次元形状との差分形状を特定する差分特定工程と、特定された差分形状に基づいて、三次元造形装置を用いて第１部材に差分形状を造形して、第２三次元形状を有する第２部材を造形する造形工程と、を備えてもよい。 The three-dimensional fabrication method disclosed in this specification is a three-dimensional fabrication method for modeling a second member having a second three-dimensional shape from a first member having a first three-dimensional shape. The three-dimensional printing method includes a difference specifying step of specifying a differential shape between a first three-dimensional shape of a first member and a second three-dimensional shape of a second member; and forming a differential shape on the first member using to form a second member having a second three-dimensional shape.

この構成では、まず、第１部材の第１三次元形状と第２部材の第２三次元形状との差分形状を特定する。次に、特定された差分形状に基づいて、第１部材に差分形状を造形して、第２部材を造形する。このため、第１三次元形状を有する第１部材を使用して、第２部材を造形することができる。 In this configuration, first, the differential shape between the first three-dimensional shape of the first member and the second three-dimensional shape of the second member is specified. Next, based on the identified differential shape, the differential shape is modeled on the first member to model the second member. Thus, a first member having a first three-dimensional shape can be used to shape a second member.

第１実施例の三次元造形システムを示す。1 shows a three-dimensional modeling system of a first embodiment; 第１実施例の第１部材と第２部材とを示す。1 shows a first member and a second member of the first embodiment; 第１部材から第２部材を造形するフローチャートを示す。Fig. 2 shows a flow chart for modeling a second member from a first member; 第２実施例の第１部材と第２部材とを示す。Figure 2 shows a first member and a second member of a second embodiment;

以下に説明する実施例の主要な特徴を列記しておく。なお、以下に記載する技術要素は、それぞれ独立した技術要素であって、単独であるいは各種の組合せによって技術的有用性を発揮するものであり、出願時の請求項に記載の組合せに限定されるものではない。 The main features of the embodiments described below are listed. It should be noted that the technical elements described below are independent technical elements, and exhibit technical usefulness alone or in various combinations, and are limited to the combinations described in the claims as filed. not a thing

（特徴１）
三次元造形方法は、第２三次元形状を記述する造形データを準備する準備工程と、第１部材の第１三次元形状を計測する計測工程と、をさらに備え、差分特定工程は、計測された第１三次元形状と造形データによって記述される第２三次元形状とに基づいて差分形状を特定してもよい。この構成では、造形データに記述される第２三次元形状を有する第２部材を第１部材から効率的に造形することができる。このため、例えば、造形データに基づいて造形した部材の一部が破損した場合に、破損した部材を第１部材として各工程を実行することで、第２三次元形状を有する第２部材を造形することができる。 (Feature 1)
The three-dimensional printing method further comprises a preparation step of preparing modeling data describing the second three-dimensional shape, and a measuring step of measuring the first three-dimensional shape of the first member, and the difference identifying step comprises the measured The difference shape may be specified based on the first three-dimensional shape and the second three-dimensional shape described by the modeling data. With this configuration, the second member having the second three-dimensional shape described in the modeling data can be efficiently modeled from the first member. Therefore, for example, when a part of a member shaped based on modeling data is damaged, each step is performed using the damaged member as the first member, thereby shaping the second member having the second three-dimensional shape. can do.

（特徴２）
第１部材は、第１部分と、第１部分と分離している第２部分と、を備え、第２部材は、第１部分と、第２部分と、第１部分と第２部分を接続する接合部と、を備え、差分形状は、接合部の形状であってもよい。この構成では、第１部分と第２部分とを接合することで、第２部材を造形することができる。このため、例えば、第１部分と第２部分とを別々に準備した場合でも、接合部を造形することによって、第２部材を造形することができる。 (Feature 2)
The first member comprises a first portion and a second portion separate from the first portion, and the second member connects the first portion, the second portion and the first portion and the second portion. and a joint, wherein the difference shape may be the shape of the joint. With this configuration, the second member can be formed by joining the first portion and the second portion. Therefore, for example, even when the first portion and the second portion are separately prepared, the second member can be formed by forming the joint portion.

（第１実施例）
図１から図３を参照して、第１実施例の三次元造形システム１０を説明する。図１に示すように、三次元造形システム１０は、三次元造形装置１２と、形状計測装置２０と、データ処理装置１４と、を備える。三次元造形装置１２は、造形材を用いて、三次元形状を有する部材を造形する。三次元造形装置１２は、後述する第１部材３０から後述する第２部材４０を造形する機能を有する。また、三次元造形装置１２は、第１部材３０を使用することなく、第２部材４０を造形する機能を有する。三次元造形装置１２は、光造形法を利用する装置である。なお、変形例では、三次元造形装置１２は、例えば熱溶解積層法、インクジェット法、インクジェット粉末積層法、プロジェクション法、及び粉末焼結法など、種々の方法を利用する装置であってもよい。造形材には、光硬化性の樹脂材料を用いることができる。なお、変形例では、造形材には、例えば、金属材料や石膏が用いられてもよい。 (First embodiment)
A three-dimensional modeling system 10 of a first embodiment will be described with reference to FIGS. 1 to 3. FIG. As shown in FIG. 1, the three-dimensional modeling system 10 includes a three-dimensional modeling device 12, a shape measuring device 20, and a data processing device . The three-dimensional modeling apparatus 12 models a member having a three-dimensional shape using a modeling material. The three-dimensional modeling apparatus 12 has a function of modeling a second member 40 to be described later from a first member 30 to be described later. The three-dimensional modeling apparatus 12 also has a function of modeling the second member 40 without using the first member 30 . The three-dimensional modeling device 12 is a device that uses stereolithography. Note that, in a modified example, the three-dimensional modeling apparatus 12 may be an apparatus that uses various methods such as a fused lamination method, an inkjet method, an inkjet powder lamination method, a projection method, and a powder sintering method. A photocurable resin material can be used as the modeling material. Note that, in a modification, for example, a metal material or gypsum may be used as the modeling material.

図２を参照して、第１部材３０と第２部材４０とを説明する。第１部材３０と第２部材４０とのそれぞれは、樹脂材料から作製されている。なお、変形例では、第１部材３０と第２部材４０とのそれぞれは、例えば、金属材料から作製されていてもよく、石膏から作製されていてもよい。第１部材３０は、第２部材４０の一部が破損した部材である。図２では、第１部材３０の第１三次元形状と第２部材４０の第２三次元形状との違いを理解しやすくするために、第１部材３０において、第２部材４０の第２三次元形状が破線で示されている。第１部材３０の第１三次元形状は、第１部材３０の外部輪郭を表し、第２部材４０の第２三次元形状は、第２部材４０の外部輪郭を表す。なお、外部輪郭とは、第１部材３０や第２部材４０を外部から視ることによって特定される形状を表す。第１部材３０の第１三次元形状は、第２部材４０の第２三次元形状と異なる。第１部材３０の第１三次元形状は、第２部材４０の第２三次元形状の一部が欠損している形状を有する。以下では、第１部材３０の第１三次元形状と第２部材４０の第２三次元形状との差分を、差分形状３２と呼ぶ。第２部材４０は、第１部材３０と差分形状３２とを備える。 The first member 30 and the second member 40 will be described with reference to FIG. Each of the first member 30 and the second member 40 is made of a resin material. In addition, in the modified example, each of the first member 30 and the second member 40 may be made of, for example, a metal material or may be made of gypsum. The first member 30 is a member obtained by partially breaking the second member 40 . In FIG. 2, in order to facilitate understanding of the difference between the first three-dimensional shape of the first member 30 and the second three-dimensional shape of the second member 40, the first member 30 has the second three-dimensional shape of the second member 40. The original shape is indicated by dashed lines. The first three-dimensional shape of the first member 30 represents the outer contour of the first member 30 and the second three-dimensional shape of the second member 40 represents the outer contour of the second member 40 . Note that the outer contour represents a shape specified by viewing the first member 30 and the second member 40 from the outside. The first three-dimensional shape of first member 30 differs from the second three-dimensional shape of second member 40 . The first three-dimensional shape of the first member 30 has a shape in which a part of the second three-dimensional shape of the second member 40 is missing. A difference between the first three-dimensional shape of the first member 30 and the second three-dimensional shape of the second member 40 is hereinafter referred to as a difference shape 32 . Second member 40 comprises first member 30 and difference shape 32 .

図１に戻り、形状計測装置２０について説明する。形状計測装置２０は、部材の三次元形状を計測する。形状計測装置２０は、三角法方式を利用する装置である。形状計測装置２０は、レーザ光を対象物（例えば、第１部材３０）に照射して対象物から反射するレーザ光をセンサで取得して、対象物の第１三次元形状を計測する。なお、変形例では、形状計測装置２０は、例えば、タイムオブフライト方式及びフェイズシフト方式など、種々の方式を利用する装置であってもよい。 Returning to FIG. 1, the shape measuring device 20 will be described. The shape measuring device 20 measures the three-dimensional shape of the member. The shape measuring device 20 is a device that uses trigonometry. The shape measuring device 20 irradiates an object (for example, the first member 30) with a laser beam, acquires the laser beam reflected from the object with a sensor, and measures the first three-dimensional shape of the object. Note that, in a modification, the shape measuring device 20 may be a device that uses various methods such as the time-of-flight method and the phase shift method.

データ処理装置１４は、形状計測装置２０と三次元造形装置１２のそれぞれに通信可能に接続されている。データ処理装置１４は、形状記述部１６と差分特定部１８とを備える。形状記述部１６は、部材の三次元形状を記述する造形データを作成する。形状記述部１６は、例えば、３ＤＣＡＤである。 The data processing device 14 is communicably connected to each of the shape measuring device 20 and the three-dimensional modeling device 12 . The data processing device 14 includes a shape description section 16 and a difference identification section 18 . The shape description unit 16 creates modeling data describing the three-dimensional shape of the member. The shape description unit 16 is, for example, 3D CAD.

差分特定部１８は、形状計測装置２０によって計測された三次元形状と、形状記述部１６によって作成された造形データによって記述される三次元形状との差分を特定する。例えば、差分特定部１８は、形状計測装置２０によって計測された第１部材３０の第１三次元形状と、形状記述部１６によって作成された第２部材４０の第２三次元形状とを重ね合わせ、一方から他方を引くことによって差分形状３２を特定する。 The difference identification unit 18 identifies the difference between the three-dimensional shape measured by the shape measurement device 20 and the three-dimensional shape described by the modeling data created by the shape description unit 16 . For example, the difference identification unit 18 superimposes the first three-dimensional shape of the first member 30 measured by the shape measuring device 20 and the second three-dimensional shape of the second member 40 created by the shape description unit 16. , to identify the difference shape 32 by subtracting one from the other.

次に、図３のフローチャートを参照して、第１部材３０から第２部材４０を造形する三次元造形方法を説明する。 Next, a three-dimensional modeling method for modeling the first member 30 to the second member 40 will be described with reference to the flowchart of FIG.

（準備工程）まず、Ｓ２において、作業者は、形状記述部１６を用いて、第２部材４０の造形データを準備する。第２部材４０の造形データには、第２部材４０の第２三次元形状が記述されている。造形データは、データ処理装置１４の図示省略のメモリに格納される。 (Preparation Step) First, in S2, the operator uses the shape description section 16 to prepare modeling data for the second member 40. As shown in FIG. The modeling data of the second member 40 describes the second three-dimensional shape of the second member 40 . The modeling data is stored in a memory (not shown) of the data processing device 14 .

（計測工程）次に、Ｓ４において、形状計測装置２０内の所定の位置に第１部材３０を配置した後、形状計測装置２０は、第１部材３０の第１三次元形状を計測する。計測済みの第１部材３０の第１三次元形状データは、形状計測装置２０からデータ処理装置１４に送信される。第１部材３０の第１三次元形状データは、データ処理装置１４のメモリに格納される。 (Measuring Step) Next, in S4, after placing the first member 30 at a predetermined position in the shape measuring device 20, the shape measuring device 20 measures the first three-dimensional shape of the first member 30. FIG. The measured first three-dimensional shape data of the first member 30 is transmitted from the shape measuring device 20 to the data processing device 14 . The first three-dimensional shape data of the first member 30 is stored in the memory of the data processing device 14 .

（差分特定工程）次いで、Ｓ６において、差分特定部１８は、第１部材３０の第１三次元形状と第２部材４０の第２三次元形状との差分形状３２を特定する。具体的には、まず差分特定部１８は、データ処理装置１４のメモリから第１部材３０の第１三次元形状データと、第２部材４０の第２三次元形状を記述する造形データとを取得する。次に、差分特定部１８は、取得済みの第１部材３０の第１三次元形状と取得済みの第２部材４０の第２三次元形状とを重ね合わせ、それらの差分である差分形状３２を特定する。特定済みの差分形状３２は、差分形状３２の三次元形状データとして、データ処理装置１４のメモリに格納される。 (Difference Identifying Step) Next, in S6, the difference identifying unit 18 identifies the difference shape 32 between the first three-dimensional shape of the first member 30 and the second three-dimensional shape of the second member 40. FIG. Specifically, first, the difference identification unit 18 acquires first three-dimensional shape data of the first member 30 and modeling data describing the second three-dimensional shape of the second member 40 from the memory of the data processing device 14. do. Next, the difference specifying unit 18 superimposes the obtained first three-dimensional shape of the first member 30 and the obtained second three-dimensional shape of the second member 40, and obtains the difference shape 32, which is the difference between them. Identify. The identified differential shape 32 is stored in the memory of the data processing device 14 as three-dimensional shape data of the differential shape 32 .

次いで、Ｓ８において、作業者は、第１部材３０を三次元造形装置１２内に配置する。即ち、第１部材３０は、三次元造形装置１２内の造形テーブル（図示省略）上に載置される。 Next, in S<b>8 , the operator places the first member 30 inside the three-dimensional modeling apparatus 12 . That is, the first member 30 is placed on a modeling table (not shown) in the three-dimensional modeling apparatus 12 .

（造形工程）次いで、Ｓ１０において、三次元造形装置１２は、第１部材３０に差分形状３２を造形し、第２部材４０を造形する。具体的には、まず、データ処理装置１４は、メモリに格納されている差分形状３２の三次元形状データから、差分形状３２の断面データ（即ち、造形データ）に変換する。次に、データ処理装置１４は、変換済みの造形データを三次元造形装置１２に送信する。次いで、三次元造形装置１２は、送信された差分形状３２の造形データに基づいて、第１部材３０上に差分形状３２を造形する。具体的には、造形テーブル上の第１部材３０を光硬化性の液体樹脂内に浸漬し、液体樹脂にレーザ光を照射することによって、第１部材３０上に差分形状３２を造形する。これにより、第２部材４０が造形される。 (Modeling Step) Next, in S<b>10 , the three-dimensional modeling apparatus 12 models the differential shape 32 on the first member 30 and models the second member 40 . Specifically, first, the data processing device 14 converts the three-dimensional shape data of the differential shape 32 stored in the memory into cross-sectional data (that is, modeling data) of the differential shape 32 . Next, the data processing device 14 transmits the converted modeling data to the three-dimensional modeling device 12 . Next, the three-dimensional modeling apparatus 12 models the difference shape 32 on the first member 30 based on the transmitted modeling data of the difference shape 32 . Specifically, the difference shape 32 is formed on the first member 30 by immersing the first member 30 on the modeling table in a photocurable liquid resin and irradiating the liquid resin with a laser beam. Thereby, the second member 40 is shaped.

（効果）
上記のＳ６において、形状計測装置２０によって計測された第１部材３０の第１三次元形状と、造形データに記述された第２部材４０の第２三次元形状から差分形状３２が特定される。Ｓ１０において、第１部材３０上に差分形状３２が造形され、第２部材４０が造形される。このため、第１部材３０を使用して、第２部材４０を効率的に造形することができる。この結果、例えば、破損した第１部材３０から第２部材４０を造形することができる。 (effect)
In S6 described above, the difference shape 32 is specified from the first three-dimensional shape of the first member 30 measured by the shape measuring device 20 and the second three-dimensional shape of the second member 40 described in the modeling data. At S10, the difference shape 32 is modeled on the first member 30, and the second member 40 is modeled. Therefore, the second member 40 can be efficiently modeled using the first member 30 . As a result, for example, the second member 40 can be modeled from the damaged first member 30 .

（第２実施例）
図４を参照して、第２実施例を説明する。第２実施例では、第１部材１３０は、第１実施例の第１部材３０と異なり、第１部分１３２と第２部分１３６とを備える。第１部分１３２は、第２部分１３６と別体となっており、第２部分１３６と分離している。第１部分１３２は、第１部分１３２を貫通する開口部１３４を有する。開口部１３４については、後で説明する。 (Second embodiment)
A second embodiment will be described with reference to FIG. In the second embodiment, the first member 130 comprises a first portion 132 and a second portion 136, unlike the first member 30 of the first embodiment. The first portion 132 is separate from the second portion 136 and separated from the second portion 136 . The first portion 132 has an opening 134 extending through the first portion 132 . Opening 134 will be described later.

第２部材１４０は、第１部材１３０の第１部分１３２と第２部分１３６とを接続することによって作製される部材である。第２部材１４０において、第１部分１３２と第２部分１３６とは、接合部１４２によって接続されている。即ち、第２部材１４０は、第１部分１３２と、第２部分１３６と、接合部１４２によって構成される。接合部１４２は、第１部分１３２の開口部１３４に配置されている。なお、図４では、接合部１４２の位置を理解しやすくするために、第２部材１４０において、接合部１４２が破線で示されている。接合部１４２は、第１部分１３２の開口部１３４と第２部分１３６の上面とに接続されている。 Second member 140 is a member made by connecting first portion 132 and second portion 136 of first member 130 . In the second member 140 , the first portion 132 and the second portion 136 are connected by a joint portion 142 . That is, the second member 140 is composed of the first portion 132 , the second portion 136 and the joint portion 142 . The joint 142 is located in the opening 134 of the first portion 132 . In addition, in FIG. 4 , the joint portion 142 of the second member 140 is indicated by a dashed line in order to facilitate understanding of the position of the joint portion 142 . The joint 142 is connected to the opening 134 of the first portion 132 and the upper surface of the second portion 136 .

次に、図３のフローチャートを参照して、第１部材１３０から第２部材１４０を造形する三次元造形方法を説明する。なお、第２実施例の三次元造形方法におけるＳ２とＳ８とのそれぞれは、第１実施例の三次元造形方法におけるＳ２とＳ８とのそれぞれと同様であるため、Ｓ２とＳ８との説明を省略する。 Next, a three-dimensional modeling method for modeling the first member 130 to the second member 140 will be described with reference to the flowchart of FIG. Note that S2 and S8 in the three-dimensional modeling method of the second embodiment are the same as S2 and S8 in the three-dimensional modeling method of the first embodiment, respectively, so description of S2 and S8 is omitted. do.

（計測工程）Ｓ４において、形状計測装置２０は、第１部材１３０の第１三次元形状を計測する。具体的には、まず、形状計測装置２０は、第１部分１３２の第１の部分三次元形状を計測する。次に、形状計測装置２０は、第２部分１３６の第２の部分三次元形状を計測する。そして、第１部分１３２の第１の部分三次元形状と第２部分１３６の第２の部分三次元形状とを結合することによって、第１部材１３０の第１三次元形状を取得する。 (Measuring step) In S4, the shape measuring device 20 measures the first three-dimensional shape of the first member 130 . Specifically, first, the shape measuring device 20 measures the first partial three-dimensional shape of the first portion 132 . Next, the shape measuring device 20 measures the second partial three-dimensional shape of the second portion 136 . Then, by combining the first partial three-dimensional shape of the first portion 132 and the second partial three-dimensional shape of the second portion 136, the first three-dimensional shape of the first member 130 is obtained.

（差分特定工程）Ｓ６において、差分特定部１８は、第１部材１３０の第１三次元形状と第２部材１４０の第２三次元形状とを重ね合わせ、一方から他方を差引くことで差分形状１４４を特定する。差分形状１４４は、第２部材１４０の接合部１４２の形状となる。 (Difference Identifying Step) In S6, the difference identifying unit 18 superimposes the first three-dimensional shape of the first member 130 and the second three-dimensional shape of the second member 140, and subtracts one from the other to determine the difference shape. 144 is identified. The differential shape 144 is the shape of the joint 142 of the second member 140 .

（造形工程）Ｓ１０において、三次元造形装置１２は、第１部材１３０に差分形状１４４を造形する。即ち、造形テーブル上に第２部分１３６を載置し、第２部分１３６上に第１部分１３２を配置する。次に、第１部分１３２と第２部分１３６とを液体樹脂内に浸漬し、液体樹脂にレーザ光を照射して接合部１４２を造形する。これにより、第１部材１３０上に接合部１４２が造形され、第１部分１３２と第２部分１３６とが接合部１４２によって接続される。 (Modeling Step) In S<b>10 , the three-dimensional modeling apparatus 12 models the differential shape 144 on the first member 130 . That is, the second portion 136 is placed on the modeling table, and the first portion 132 is arranged on the second portion 136 . Next, the first portion 132 and the second portion 136 are immersed in liquid resin, and the liquid resin is irradiated with a laser beam to shape the joint portion 142 . Thereby, a joint portion 142 is formed on the first member 130 , and the first portion 132 and the second portion 136 are connected by the joint portion 142 .

（効果）
第２実施例では、第１部分１３２と第２部分１３６とを準備し、第１部分１３２と第２部分１３６とを接合する接合部１４２を三次元造形装置１２によって造形することで、第２部材１４０を造形する。このような方法を用いることで、１回の造形では難しい複雑な形状の部材であっても、三次元造形装置１２を用いて簡易に造形することができる。 (effect)
In the second embodiment, the first portion 132 and the second portion 136 are prepared, and the joint portion 142 that joins the first portion 132 and the second portion 136 is modeled by the three-dimensional modeling apparatus 12 to form the second portion 132 . The member 140 is shaped. By using such a method, even a member having a complicated shape that is difficult to form in one time can be easily formed using the three-dimensional forming apparatus 12 .

以上、本発明の具体例を詳細に説明したが、これらは例示に過ぎず、特許請求の範囲を限定するものではない。特許請求の範囲に記載の技術には、以上に例示した具体例を様々に変形、変更したものが含まれる。 Although specific examples of the present invention have been described in detail above, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

（１）上記の第１実施例では、第１部材３０は、第２部材４０の一部が破損した部材であった。しかしながら、第１部材３０は、第２三次元形状を記述する造形データに基づいて第２部材４０を造形した際に三次元造形装置１２の動作不良等によって得られた欠陥部材であってもよい。三次元造形装置１２によって欠陥部材が造形されてしまった場合でも、上記の方法を用いることによって、欠陥部材を使用して所望の形状を有する部材を短時間で造形することができる。 (1) In the first embodiment described above, the first member 30 is a member in which a part of the second member 40 is damaged. However, the first member 30 may be a defective member obtained due to malfunction of the three-dimensional modeling apparatus 12 when modeling the second member 40 based on modeling data describing the second three-dimensional shape. . Even if a defective member is modeled by the three-dimensional modeling apparatus 12, by using the above method, a member having a desired shape can be modeled in a short time using the defective member.

（２）上記の第１実施例では、第２部材４０の第２三次元形状を記述する造形データは、データ処理装置１４の形状記述部１６によって作成される。しかしながら、第２部材４０の造形データは、データ処理装置１４と異なる別のデータ処理装置によって作成されてもよい。また、第２部材４０の造形データは、第１部材３０が破損する前に、形状計測装置２０によって計測された計測結果から作成された造形データであってもよい。 (2) In the first embodiment described above, the modeling data describing the second three-dimensional shape of the second member 40 is created by the shape description unit 16 of the data processing device 14 . However, the modeling data of the second member 40 may be created by another data processing device different from the data processing device 14 . Further, the modeling data of the second member 40 may be modeling data created from the measurement result measured by the shape measuring device 20 before the first member 30 is damaged.

また、本明細書又は図面に説明した技術要素は、単独であるいは各種の組合せによって技術的有用性を発揮するものであり、出願時請求項記載の組合せに限定されるものではない。また、本明細書又は図面に例示した技術は複数目的を同時に達成し得るものであり、そのうちの一つの目的を達成すること自体で技術的有用性を持つものである。 In addition, the technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technique illustrated in this specification or drawings can simultaneously achieve a plurality of purposes, and achieving one of them has technical utility in itself.

１０：三次元造形システム
１２：三次元造形装置
１４：データ処理装置
１６：形状記述部
１８：差分特定部
２０：形状計測装置
３０、１３０：第１部材
３２、１４４：差分形状
４０、１４０：第２部材
１３２：第１部分
１３６：第２部分
１４２：接合部 10: three-dimensional modeling system 12: three-dimensional modeling device 14: data processing device 16: shape description unit 18: difference specifying unit 20: shape measuring devices 30, 130: first members 32, 144: differential shapes 40, 140: third Two members 132: first part 136: second part 142: joint

Claims

A three-dimensional modeling method for modeling a second member having a second three-dimensional shape from a first member having a first three-dimensional shape,
a preparation step of preparing modeling data describing the second three-dimensional shape;
a measuring step of measuring the first three-dimensional shape of the first member;
Based on the measured first three-dimensional shape and the second three-dimensional shape described by the modeling data, the first three-dimensional shape of the first member and the second three-dimensional shape of the second member a difference identification step of identifying a difference shape from the shape;
a modeling step of modeling the differential shape on the first member using a three-dimensional modeling apparatus based on the specified differential shape , and modeling the second member having the second three-dimensional shape; prepared ,
The second member is formed by forming the differential shape on a portion of the surface of the first member,
The three-dimensional modeling method , wherein in the modeling step, the first member is immersed in a photocurable liquid resin, and the liquid resin is irradiated with a laser beam to model the difference shape .

The three-dimensional modeling method according to claim 1 ,
the first member comprises a first portion and a second portion separate from the first portion ;
the second member includes the first portion , the second portion, and a joint connecting the first portion and the second portion ;
The three-dimensional modeling method, wherein the differential shape is the shape of the joint.