JPH09169056A - Production of three-dimensional shaped article - Google Patents

Production of three-dimensional shaped article

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Publication number
JPH09169056A
JPH09169056A JP33223195A JP33223195A JPH09169056A JP H09169056 A JPH09169056 A JP H09169056A JP 33223195 A JP33223195 A JP 33223195A JP 33223195 A JP33223195 A JP 33223195A JP H09169056 A JPH09169056 A JP H09169056A
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layer
support member
support
photocurable
photocurable layer
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JP33223195A
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Japanese (ja)
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JP3155185B2 (en )
Inventor
Sakuo Kamata
Zenichi Shikada
Yoshiyuki Uchinono
良幸 内野々
策雄 鎌田
善一 鹿田
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Matsushita Electric Works Ltd
松下電工株式会社
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Abstract

PROBLEM TO BE SOLVED: To properly and efficiently perform the planning of a support member and to make the mark generated on the side of a shaped article when the support member is cut off from the formed shaped article inconspicuous in a method connecting the support member, which connects a fixed structural member supporting the part required to be supported of the shaped article, to the part required to be supported of the shaped article when a photo-set layer is formed by irradiating a photo-setting resin with light and a plurality of the photo-set layers are stacked to produce the shaped article having a desired three-dimensional shape.
SOLUTION: It is judged whether support is necessary for the respective photo-set layers 40 of a shaped article and the connection part 51c of a support member is formed in the same way as the shaped article so as to be connected to the photo-set layer 40d requiring support in a part of the region not overlapped with the planar shape of the photo-set layer 40c of a lower layer within the planar countour line region of the photo-set layer 40d requiring support or the whole region.
COPYRIGHT: (C)1997,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】この発明は、三次元形状造形物の製造方法に関し、詳しくは、光の照射によって硬化する光硬化性樹脂を用いて、立体的な三次元形状を有する物品を成形製造する方法に関するものである。 TECHNICAL FIELD The present invention relates to a method of manufacturing a three-dimensionally shaped object, detail, using the photo-curable resin which is cured by irradiation of light, molding manufacturing an article having a three-dimensional three-dimensional shape it relates to a method for.

【0002】 [0002]

【従来の技術】光硬化性樹脂を用いて三次元形状造形物を製造する方法は、複雑な三次元形状を、成形型や特別な加工工具等を用いることなく、簡単かつ正確に形成することができる方法として、各種の製品モデルや立体模型の製造等に利用することが考えられている。 Method for producing a three-dimensionally shaped object by using the Related Art photocurable resin, a complex three-dimensional shape, without using a mold and special machining tool or the like, to easily and accurately form as a method capable of, it is considered to use in the production of various product models and three-dimensional model.

【0003】例えば、特開昭63−141724号公報の方法は、樹脂液の中に沈めた昇降自在な成形台を、樹脂液の液面直下に配置して、液面にレーザ光を照射し、 For example, the method of JP-A-63-141724 has a vertically movable forming table submerged in the resin solution, and placed directly below the liquid surface of the resin solution, irradiated with a laser beam on the liquid surface ,
成形台の上の樹脂液層を光硬化させて光硬化層を形成し、つぎに、成形台を少し沈めた後、前記同様の作業を行うという工程を繰り返すことにより、複数層の光硬化層を積み重ねていく。 The resin solution layer on the forming table by photocuring to form a photo hardening layer, then after sank forming table bit, by repeating the steps of performing the same operation, the photocurable layer of the plurality of layers the go stack. 上記先行技術の他にも、光硬化層の積層によって三次元形状造形物を製造する方法が種々提案されている。 In addition to the above prior art, a method of producing a three-dimensionally shaped object by lamination of the photocurable layer it has been proposed.

【0004】このような三次元形状造形物の製造方法では、三次元形状の一部に、下方よりも大きく側方に張り出したひさし部が存在していたり、下方が全く支持されていない垂れ下がり部が存在していたりすると、これらひさし部や垂れ下がり部を構成する光硬化層の支持が不十分になり、光硬化層が変形したり移動したりして、三次元形状の形が崩れたり形状精度が悪くなったりするという問題が発生していた。 [0004] In the method of manufacturing such a three-dimensionally shaped object, a part of the three-dimensional shape, or not exist overhanging portion which protrudes largely laterally than the lower, sagging section below is not at all supported When there or present, these support eaves portion and the photocurable layer constituting the dangling portion becomes insufficient, and the photocurable layer is move or deform, a three-dimensional shape form collapses or shape accuracy of a problem that may become worse has occurred.

【0005】このような問題を解消するため、造形物につながり、造形物と同じように光硬化性樹脂を光硬化させて形成する支持部材を設けておくことが考えられた。 [0005] To solve such a problem, it leads to shaped articles, it has been considered to be provided with a support member to form the same by photocuring a photocurable resin such that the shaped object.
特開平6−8342号公報には、上下に積み重ねる2層の光硬化層の平面形状を比較して、上層の光硬化層に支持部材が必要であるか否かを判定し、支持部材が必要であれば、上層の光硬化層を形成するための光の照射領域に、支持部材に対応する光の照射領域を追加設定する技術が示されている。 JP-A-6-8342, and comparing the planar shape of the photocurable layer of the two layers stacked up and down, to determine whether or not it is necessary to support the upper layer of the photocurable layer, requires the support member if, on the irradiation area of ​​the light for forming the upper layer of the photocurable layer, additional sets a technique for the irradiation area of ​​the light corresponding to the support member is shown. この方法では、造形物の形状データをもとにして、造形物の支持にとって適切な位置に支持部材を配置でき、支持部材の設計が簡単かつ適切に行える。 In this method, the shape data of shaped object based on, in position for supporting the shaped object can be placed supporting member, can be performed easily and appropriately design of the support member.

【0006】 [0006]

【発明が解決しようとする課題】前記先行技術では、造形物を構成する光硬化層の外側端面に、支持部材の連結部分が造形物を形成する複数の光硬化層にまたがり連結されてる。 In [0006] the prior art, the outer end surface of the photocurable layer forming the modeled object, connecting portions of the support member is connected across multiple photocurable layer to form a shaped object. しかし、造形物の表面は層を積層させて形成するため階段状になっており、前記先行技術のような複数の光硬化層にまたがる支持部材の連結部分を造形物より切り離した際には痕が残るという問題がある。 However, the surface of the shaped object has become stepped to form by stacking layers, traces are in the connecting portion is disconnected from the shaped article of the support member across multiple photocurable layer, such as the prior art there is a problem that remains.

【0007】この発明の課題は、前記したような三次元形状造形物の成形方法において、造形物を支持する支持部材の設計を適切かつ能率的に行うことができるとともに、形成された造形物から支持部材を切り離した際に造形物側に生じる痕が目立たないようにすることである。 An object of the invention is, in the molding method of three-dimensionally shaped object as described above, with molded object can be performed appropriately and efficiently design a support member for supporting the, from the formed shaped article marks occurring shaped object side when disconnecting the support member is to inconspicuous.

【0008】 [0008]

【課題を解決するための手段】この発明にかかる三次元形状造形物の成形方法は、光硬化性樹脂に光を照射して光硬化層を形成し、この光硬化層を複数層積み重ねて所望の三次元形状を有する造形物を製造する際に、造形物のうち支持を必要とする部分に、これを支持する固定構造体をつなぐ支持部材を連結する方法において、造形物を形成する各光硬化層に対して支持が必要であるか否かを判定し、前記支持を必要とする光硬化層の平面形状の輪郭線領域のうち、下層の光硬化層の平面形状と重ならない領域の一部または全ての領域で、前記支持を必要とする光硬化層に連結されるように支持部材の連結部分を造形物と同じ方法で形成する。 Means for Solving the Problems] forming method of a three-dimensionally shaped object according to the present invention, by irradiating light to form a photo hardening layer photocurable resin, optionally the photocurable layer stacked plurality of layers in producing a molded article having a three-dimensional shape of the area in need of support of the shaped object, in a method of connecting a supporting member connecting the fixed structure for supporting the respective light forming the shaped object hardened layer supporting it is determined whether it is necessary with respect to, among contour area of ​​the planar shape of the supporting photocurable layer which requires, one region that does not overlap with the planar shape of the lower layer of the photocurable layer part or all of the regions, formed in the same manner as the shaped object a connecting portion of the support member to be coupled to a photocured layer which requires the support.

【0009】光硬化性樹脂としては、従来の三次元形状造形物の成形方法でも用いられている各種の光硬化性樹脂が用いられる。 [0009] As the photocurable resin, various photocurable resins are also used in the molding method of the conventional three-dimensional shaped object is used. 具体的には、ウレタン、ウレタン−アクリレート、エポキシ、エポキシ−アクリレート系の光硬化性樹脂などが挙げられる。 Specifically, urethane, urethane - acrylate, epoxy, epoxy - such as acrylate-based photocurable resins. 光硬化性樹脂の供給方法、光の照射方法、光硬化層の形成方法、光硬化層の積み重ね方法など、三次元形状造形物を成形するための基本的な技術は、従来知られているような通常の方法や装置がそのまま適用できる。 Supply method of the photocurable resin, irradiation method of light, a method of forming a photocured layer, such as stacking method of the photocurable layer, basic techniques for forming a three-dimensionally shaped object, like conventionally known normal methods and apparatus can be applied as such.

【0010】光硬化層毎の平面形状は、通常、造形物の全体外形をCAD装置などで電子情報化し、この電子情報から、各光硬化層毎の平面形状データを演算して作製する。 [0010] The planar shape of the photocurable layer each are usually an overall outer shape of the shaped object into electronic information technology like CAD apparatus, from the electronic information, is produced by calculating the plane shape data of each of the photo hardening layer for each. 光硬化層毎の平面形状が決まれば、この平面形状に対応して、各光硬化層を形成するための光の照射領域が決まり、この光の照射領域の情報を、レーザ光の走査制御装置などに入力すれば、必要な形状の光硬化層が形成できる。 Once the plane shape of the photocurable layer each, corresponding to the plane shape, determines the irradiation area of ​​the light for forming each light-cured layer, the information of the irradiation region of the light, the laser beam scanning control unit if the input to such photocurable layer of the required shape can be formed.

【0011】この発明は、造形物の構造として、少なくともその一部に、支持を必要とする部分が存在するものに適用される。 [0011] The present invention, as the structure of the molded article, at least a portion thereof, is applicable to the portion which requires the support exists. 支持を必要とする部分とは、前記したひさし部や垂れ下がり部などである。 The support portion that requires, above described eaves and dangling portion, and the like. 支持を必要とする部分は、ひとつの造形物に1個所の場合だけでなく、複数個所存在する場合もある。 Parts that require support, not only in the one location in one of the shaped articles may also exist a plurality of locations. 支持部材は、三次元形状を構成する光硬化層の形成と同様の手段で、光硬化性樹脂に光を照射して光硬化させることにより形成される。 Support member, in the same way as the formation of the photocured layer constituting the three-dimensional shape, by irradiating light to the photocurable resin is formed by photocuring. 支持部材は通常、光硬化性樹脂からなる複数の支持層が積層されて構成されるが、1層の支持層で支持部材が構成される場合もある。 The support member is generally comprised a plurality of support layer made of a photocurable resin is laminated, the support member is case consists of one layer support layer.

【0012】支持部材は、造形物の支持を必要とする部分と、これを支持する固定構造体とをつなぐように形成される。 [0012] The support member has a portion which requires the support of the shaped object is formed to connect the fixed structure that supports them. 固定構造体には、例えば、造形物を成形する成形台の表面、光硬化性樹脂液を貯えておく樹脂液槽の内壁面、造形物の成形個所の周囲に立設された柱や壁など、金属や合成樹脂などを利用してもよいし、同じ造形物のうち、その形状から剛性が大きく変形し難いような構造部分を固定構造体として利用することも可能である。 The fixed structure, for example, forming table surface for molding the molded product, the inner wall surface of the resin liquid tank to be stored photocurable resin liquid, such as erected pillars and walls around the forming point of the shaped article , it may be utilized such as metal or synthetic resin, of the same modeled object, it is also possible to use a structure part that hardly stiffness largely deformed from the shape as a fixed structure. さらに、造形物の周囲に、光硬化性樹脂を光硬化させて、十分な剛性を備えた周壁あるいは柱などを成形し、この周壁などを固定構造体とすることもできる。 Further, around the molded object, a photocurable resin by photocuring, molding and wall or pillar having a sufficient rigidity can be like this wall and the fixed structure.

【0013】支持部材の形状は、従来の方法でも用いられていた各種支持用部材の構造が採用でき、必要な強度や荷重の負荷方向を考慮して、様々な形状の腕状あるいは柱状をなすものを用いることができる。 [0013] the support member shapes, conventional can various structures adopted supporting member which has been also used in the methods, taking into account the load direction of the required strength and load, form an arm-like or columnar various shapes it is possible to use things. 支持部材を構成する各支持層には、造形物すなわち光硬化層に連結される支持部材連結部と、光硬化層に直接は連結されないが上層の支持部材連結部を支持構造につないで間接的に光硬化層を支持する支持部材本体とを有する。 Each support layers constituting the support member is shaped object i.e. indirectly connecting the support member connecting portion connected to the photocurable layer, but is not directly connected to the photocurable layer to the support member connecting portions of the upper to the support structure and a support member body which supports the photocurable layer.

【0014】支持部材連結部は、連結される光硬化層の下面に連結され、上層部分の光硬化層を支持するのに適切な位置および形状を有する。 [0014] support member connecting portion is connected to the lower surface of the photocurable layer to be connected, with a suitable position and shape to support the photocurable layer of the upper layer portion. 造形物から支持部材連結部を切り離したときに痕が目立たないように、支持部材連結部は必要最小限の面積で光硬化層に連結されているのが好ましい。 As inconspicuous marks when disconnecting the support member connecting portion from the shaped object, preferably it is coupled to the photocurable layer supporting member connecting portion a necessary minimum area. 支持部材連結部の具体的形状としては、 The specific shape of the support member connecting portion,
平面形状が直線状のもののほか、破線状、円形状、楕円状、多角形状その他の各種図形状のものが採用できる。 Planar shape in addition to those of the straight, dashed line shape, a circular shape, an elliptical shape, may be employed those of polygonal shape other various view shape.

【0015】支持部材連結部は、連結される光硬化層すなわち支持を必要とする部分の光硬化層に対して下層となる光硬化層とともに形成され、前記支持を必要とする光硬化層の平面形状の輪郭線領域のうち、下層の光硬化層の平面形状と重ならない領域の一部または全ての領域で、前記支持を必要とする光硬化層に連結されるように形成される。 The support member connecting portion is formed with a light curable layer to be a lower layer with respect to the photocurable layer of the portion that requires a photocurable layer or support is connected, the plane of the photocured layer which requires the support among the contour line region of the shape, a part of the region which does not overlap with the planar shape of the lower layer of the photocurable layer or in all areas, is formed to be connected to the photocurable layer which requires the support. したがって、支持部材連結部は、支持を必要とする光硬化層の下面には連結されるが、下層となる光硬化層には連結されない。 Therefore, the support member connecting portion is on the lower surface of the support photocured layer that require being connected, not connected to the photocurable layer to be a lower layer. その結果、造形物から支持部材を切り離す際には、支持部材連結部とその上面の光硬化層との間で切り離すだけで良くなり、切り離した痕は光硬化層の下面側のみに残り、切り離した痕が造形物の形成時の積層による段差と重なり目立たなくなる。 As a result, when disconnecting the support member from the shaped object is made need only disconnect between the support member connecting portions photocurable layer of the upper surface, detached traces remaining only on the lower surface side of the photocurable layer, disconnect marks were no longer noticeable overlap between the step of the laminate during formation of the shaped object.

【0016】特に、破線状支持部材などの比較的小さな単位支持層が間隔をあけて配置された支持部材連結部であれば、支持部材連結部と上層の光硬化層との接触面積が少なくなるので、支持部材連結部の部分で行われる造形物と支持部材との切り離し作業が行い易くなる。 [0016] In particular, if the support member connecting portions relatively small unit supporting layer is spaced such broken-line support member, the contact area between the supporting member coupling portion and the upper layer of the photocurable layer is reduced since, or disconnect the shaped object and the support member takes place in a portion of the support member connecting portion is facilitated. 支持部材本体は、支持部材連結部の下層に形成されて上層の支持部材連結部を支持する。 The support member main body is formed in a lower layer of the support member connecting portion for supporting the support member connecting portions of the upper. したがって、支持部材連結部の配置形状に合わせて支持部材本体が形成される。 Therefore, the support member main body is formed in accordance with the arrangement shape of the support member connecting portion. 支持部材本体は、上層の光硬化層および支持部材連結部を確実に支持できる十分な大きさあるいは強度を有するものが好ましい。 The support member body, having a sufficient size or strength layer of reliably supporting the photocurable layer and the support member connecting portion is preferred. 支持部材本体の具体的形状としては、前記支持部材連結部と同様の平面形状を有するもののほか、十字形をなすもの、枠状をなすもの、ハニカム状をなすものなどが採用できる。 The specific shape of the support member body, in addition to those having the same planar shape as the supporting member coupling portion, which forms a cross, which form a frame shape, such as those forming the honeycomb shape can be adopted.

【0017】特に、十字状支持部材などの比較的小さな単位支持層を縦横に間隔をあけて配置して全体の支持部材本体を構成すれば、単位支持層の間を樹脂液が自由に流動通過できるので、成形台もしくは先に形成された光硬化層の上に新たな樹脂液を供給してから液面が平滑になって次回の光照射が行えるようになるまでの時間が短縮されるという利点がある。 [0017] In particular, by forming the whole of the support member body relatively small unit supporting layer, such as a cross-shaped supporting member and spaced vertically and horizontally, between the unit supporting layer resin liquid freely flowing passage since it, that the time from when supplying a new liquid resin on the photocurable layer formed on the molding base or previous to the liquid surface is allow the next light irradiation becomes smooth can be shortened there is an advantage. また、成形台の上に形成される支持部材本体との接触面積も少なくなるので切り離し作業が容易になる。 Moreover, removal works is facilitated since also reduced contact area with the supporting member main body to be formed on the forming table.

【0018】支持部材本体は、支持を必要とする光硬化層の平面形状および下層の光硬化層の平面形状の何れとも重ならない領域に形成されるので、造形物を構成する何れの光硬化層とも直接的には連結されていない。 The supporting member main body, since it is formed in any and do not overlap area of ​​the planar shape of the planar shape and the lower layer of the photocurable layer of the photocurable layer in need of support, one of the photocurable layer of the shaped object and not in direct also connected. 通常は、支持部材本体を1層または複数層積層した上に前記支持部材連結部が配置されて支持部材を構成する。 Typically, the support member connecting portion is arranged a support member main body on which is laminated one or more layers to constitute the support member. 但し、1層の支持部材連結部のみで支持部材を構成することも可能である。 However, it is also possible to configure the support member only by the support member connecting portions of the first layer.

【0019】支持部材連結部に連結される光硬化層は、 The photocurable layer, which is connected to the support member connecting portion,
造形物を構成する全ての光硬化層であってもよいし、支持の必要な一部の光硬化層だけであってもよい。 May be all of the photocurable layer of the shaped object, it may be only a portion of the photocurable layer necessary support. すなわち、支持部材連結部に連結される光硬化層が、支持部材連結部に連結されない光硬化層を間に挟んで上下に間隔をあけて配置されていてもよい。 That is, the photocurable layer is connected to the support member connecting portions may be spaced vertically in between the support member connecting portions photocured layer which is not connected to. 支持部材連結部に連結される光硬化層の割合が多いほど、支持効果は向上するが支持部材を作製する手間は増え、造形物から支持部材を切り離す処理にも手間がかかる。 As the ratio of the photocured layer which is connected to the support member connecting portion is large, the supporting effect is increased the time is improved to produce a support member, also it takes time from the shaped object to the processing to disconnect the support member. 通常は、必要最小限度の光硬化層のみに支持部材連結部を連結させればよい。 Normally, it is only necessary to connect the support member connecting portions only to the photocurable layer of the necessary minimum.

【0020】このような支持部材連結部の形成の要否すなわち支持部材の配置設計は、造形物全体の形状から判断して行うこともできるし、造形物を構成する複数の光硬化層のうち、上下に積み重ねる2層の光硬化層の平面形状を比較した結果をもとにして行うこともできる。 The layout design of the necessity or support member formed of such a support member connecting portion can either be carried out by determining the shape of the entire shaped article, among the plurality of light curing layer forming the shaped object It can also be carried out the result of comparing the planar shape of the photocurable layer of the two layers stacked up and down based on. 具体的には、上下2層の光硬化層の平面形状の面積、輪郭線のずれ量や角度などの情報をもとにして、上層の光硬化層に連結する支持部材連結部を設けることが必要か否かを判断することができる。 Specifically, the area of ​​the planar shape of the photocurable layer of the upper and lower layers, the information such as the displacement amount and the angle of the contour line based on, be provided with a supporting member connecting portion for connecting the upper layer of the photocurable layer it is possible to determine required or not.

【0021】例えば、以下の方法が採用できる。 [0021] For example, the following method can be adopted. まず、 First of all,
造形物を光硬化層の積層方向に断面したときの外形輪郭線を求める。 It requests the contour when the cross section of the shaped object in the stacking direction of the photocurable layer. 多数の光硬化層の積層体からなる造形物の外形は微視的には階段状の段差がつくが、前記外形輪郭線は各光硬化層毎の段差を覆う包絡線で表される。 Although the outer shape of the shaped article comprising a stack of multiple photocurable layer attached stair-shaped step microscopically, the outer contour is expressed by the envelope to cover the step difference of each photocurable layers each. 各光硬化層毎にその位置における前記外形輪郭線の接線と光硬化層の面方向との傾き角度を求める。 Each photocurable layers determine the inclination angle of the plane direction of the tangent and the photocurable layer of the outer contour line at that location. この傾き角度が所定の基準角度を下回る位置の光硬化層に支持部材連結部を連結する。 The inclination angle for connecting the support member connecting portions in the photocurable layer position below a predetermined reference angle. 傾き角度が小さいほど、下層の光硬化層に対して上層の光硬化層が大きく外側に張り出していることになり、支持部材の必要性が高い。 As the inclination angle is small, will be the upper layer of the photocurable layer protrudes largely outwardly to the underlying photocurable layer, it is highly necessary for the support member. 傾き角度が90 The inclination angle is 90
°以上であれば、上層の光硬化層の外縁が下層の光硬化層の外縁よりも内側にある。 If more than °, the outer edge of the upper layer of the photocured layer is inside the outer edge of the lower layer of the photocurable layer. 基準角度としては、造形物の形状や使用材料、使用目的などの条件によって異なるが、通常は15°以下に設定しておく。 The reference angle, shape, material, or molded article may vary depending on the conditions of intended use, normally is set to 15 ° or less.

【0022】支持部材連結部を連結する光硬化層の判定には、以下の方法も採用できる。 [0022] determination of the photocurable layer to couple the support member connecting portion, can be adopted the following method. 上下2層の光硬化層に対して、上層の光硬化層の平面形状のうち下層の光硬化層の平面形状と重ならない領域の面積が所定の基準面積を超える光硬化層である場合に、上層の光硬化層に支持部材連結部を連結する。 Against the photocurable layer of the upper and lower layers, when the area of ​​a region that does not overlap with the planar shape of the lower layer of the photocurable layer of the planar shape of the upper layer of the photocurable layer is a photocurable layer exceeds a predetermined reference area, connecting the support member connecting portions in the upper layer of the photocurable layer. 前記面積が大きいほど、下層の光硬化層に対して上層の光硬化層が大きく外側に張り出していることになり、支持の必要性が高い。 As the area is large, will be the upper layer of the photocurable layer protrudes largely outwardly to the underlying photocurable layer, it is highly necessary support. 基準面積は、造形物の形状や使用材料、使用目的などの条件によって異なる。 Reference area, different shapes and materials used of the shaped product, the conditions of intended use. 基準面積を、上層の光硬化層の面積に対する割合で規定することもできる。 The reference area may be defined as a percentage of the area of ​​the upper layer of the photocurable layer. 例えば、光硬化層の厚みが0.2mmの場合であると上層の光硬化層の面積に対して5〜10%の面積を基準面積とすることができる。 For example, it is possible the thickness of the photocurable layer has a reference area of ​​5-10% of the area of ​​the area of ​​the upper layer of the photocurable layer to be the case of 0.2 mm.

【0023】さらに、支持部材連結部を連結する光硬化層の判定には、前記先行技術である特開昭6−8342 Furthermore, the determination of the photocurable layer to couple the support member connecting portion is the prior art JP 6-8342
号公報に示された技術も適用できる。 Can also be applied items has been shown in Japanese art. なお、上記した支持部材連結部の必要性の判定、支持部材連結部および支持部材本体の配置形状の決定などの作業は、CAD装置などに入力された造形物の外形に関する情報をもとに、 The determination of the necessity of the support member connecting portion described above, operations such as determining the arrangement shape of the support member connecting portion and the support member main body, based on the information about the outline of the shaped object that is input to the like CAD device,
コンピュータで演算処理することで予め行うことができる。 It can be carried out in advance by arithmetic processing with the computer. 造形物の全体形状をCAD装置などに入力するだけで、必要な支持部材の配置形状が求められ、その結果をもとにして、光の照射による三次元形状造形物の成形を自動化することが可能である。 The overall shape of the shaped object only enter into such CAD device, prompts the arrangement shape of the required supporting member, and based on the result, to automate the molding of three-dimensionally shaped object by irradiation with light possible it is.

【0024】以上のようにして複数層の光硬化層からなる造形物と、支持部材連結部および支持部材本体で構成される支持部材とが形成された後、造形物から支持部材を切り離せば、目的とする造形物が得られる。 [0024] and shaped object made of a light cured layer of a plurality of layers as described above, after which the support member is formed composed of the supporting member coupling portion and the support member body, if inseparable the support member from the shaped object, shaped object and purpose can be obtained. 造形物と支持部材との切り離しには、カッター、ニッパー等の切り離し工具を用いることができる。 The decoupling of the shaped object and the support member, the cutter can be used releasing tool of nippers or the like. 成形された造形物は、加熱による二次硬化を行ったり、表面を滑らかにする表面仕上げ処理を行ったりするなど、通常の三次元形状造形物の製造における後処理を行うこともできる。 Molded shaped object can or perform secondary hardening by heating, etc. or subjected to surface finishing treatment to smooth the surface, also be subjected to a post-treatment in the manufacture of a conventional three-dimensionally shaped object.

【0025】 [0025]

【発明の実施形態】ついで、この発明の実施例について、図面を参照しながら以下に説明する。 [Embodiment of the Invention Next, an embodiment of the present invention will be described below with reference to the drawings. 〔第1の実施形態〕図1〜図4に段階順に示す三次元形状造形物の製造方法は、図4の示す断面形状を有する造形物4を製造する方法である。 Manufacturing method of First Embodiment three-dimensionally shaped object shown in step order of 1 to 4, a method for producing a molded article 4 having a sectional shape shown by the Fig.

【0026】図1に示すように、光硬化性樹脂液10に昇降部材20を沈める。 As shown in FIG. 1, submerging the lifting member 20 to the light curing resin liquid 10. 昇降部材20は図示しないアクチュエータなどで上下に昇降自在である。 Elevating member 20 is movable up and down by an actuator (not shown). 昇降部材20 The lifting member 20
には成形台22が取り付けられており、この成形台22 Is attached is forming table 22, this forming table 22
の上に造形物4を形成する。 To form a molded object 4 onto. 成形台22を樹脂液10の液面からわずかに沈んだ位置に配置し、液面上からレーザ光30を照射することで、成形台22と液面との間に存在する樹脂液10の層を光硬化させる。 The forming table 22 arranged sunk slightly position from the liquid surface of the resin solution 10, by irradiating a laser beam 30 from the liquid surface, the layer of the resin solution 10 that exists between the forming table 22 and the liquid level It is allowed to light curing. レーザ光30 Laser light 30
の照射パターンにしたがって樹脂液10が光硬化する。 Resin liquid 10 is light cured in accordance with the irradiation pattern.

【0027】成形台22の上には、造形物4の第1層になる光硬化層40aと、光硬化層40aの一端側方に配置された枠状支持部材51aとが形成される。 [0027] On the forming table 22 includes a photo hardening layer 40a made of the first layer of the molded object 4, a frame-like support member 51a disposed at one end side of the photocurable layer 40a is formed. 枠状支持部材51aは、光硬化層40aと同じ幅で概略矩形状をなし、光硬化層40aに向かって開いたコ字形が2つ並んだ形を有する。 Frame-shaped support member 51a is substantially a rectangular shape with the same width as the photocurable layer 40a, U-shaped open towards the photocurable layer 40a has two aligned form. 枠状支持部材51aは光硬化層40a Frame-shaped support member 51a is photocured layer 40a
の側端面とは連結されておらず、後述する支持部材本体となる。 The side end surfaces not connected, a supporting member main body to be described later.

【0028】図2に示すように、成形台22を段階的に沈めながら、各段階毎にレーザ光30の照射を行って、 As shown in FIG. 2, while submerged molding platform 22 stepwise, by performing laser light irradiation 30 for each phase,
複数段の光硬化層40a、40b、40cを順次積み重ねて形成する。 A plurality of stages of the photocurable layer 40a, 40b, are sequentially stacked form 40c. 各光硬化層40a…の形成と同時に、枠状支持部材51a、51b、51cも形成される。 Simultaneously with the photocurable layer 40a ... forming the frame-shaped support member 51a, 51b, 51c are also formed. 光硬化層40aと40b、枠状支持部材51aと51bはそれぞれ同じ形である。 The photocurable layer 40a and 40b, the frame-like support member 51a and 51b are the same shape, respectively. 光硬化層40cは、その一部が光硬化層40bの上面に積み重ねられ、別の一部は光硬化層40bの外側に張り出して、枠状支持部材51bの上面に連結されて積み重ねられる。 The photocurable layer 40c is partially stacked on the upper surface of the photocurable layer 40b, another part projects outside the photocurable layer 40b, stacked is connected to the upper surface of the frame-like support member 51b. したがって、枠状支持部材51bは、その一部が光硬化層40cに連結される支持部材連結部となり、残りの部分は光硬化層40cに連結されない支持部材本体となる。 Accordingly, frame-like support member 51b becomes a supporting member connecting portion, a part is connected to the photo hardening layer 40c, the remaining portion as a supporting member main body which is not connected to the photo hardening layer 40c. 枠状支持部材51b Frame-like support member 51b
のうち光硬化層40cに連結される支持部材連結部は、 The support member connecting portion connected to the inner photocurable layer 40c of
光硬化層40cの平面形状の輪郭線で囲まれる領域のうち、下層の光硬化層40bの平面形状と重ならない領域に配置されている。 Of the region surrounded by the contour line of the planar shape of the photocurable layer 40c, it is disposed in a region that does not overlap with the planar shape of the lower layer of the photocurable layer 40b.

【0029】図3に示すように、最上層となる光硬化層40dを形成する。 As shown in FIG. 3, to form the photo hardening layer 40d which is the top layer. 光硬化層40dの一部は、光硬化層40cの上面に連結され、残りの一部は光硬化層40c Some of the photocurable layer 40d is connected to the upper surface of the photocurable layer 40c, and the remaining portion photocurable layer 40c
の外側に張り出して枠状支持部材51bの上面に連結される。 Is coupled to the upper surface of the frame-like support member 51b protrudes in the outer. 4層の光硬化層40a〜40dで構成される造形物4が形成された後、図4に示すように、光硬化性樹脂液10から造形物4を取り出し、4層の支持部材51a After molded object 4 is formed composed of four layers of the photocurable layer 40 a to 40 d, as shown in FIG. 4, the extraction molded object 4 from the photocurable resin liquid 10, having a four-layer support member 51a
〜51cからなる支持部材5を造形物4から切り離す。 Disconnect the support member 5 made of ~51c a molded object 4.
具体的には、光硬化層40dの下面と支持部材連結部となる枠状支持部材51cの上面とを切り離し、光硬化層40cの下面と支持部材連結部となる枠状支持部材51 Specifically, disconnect the upper surface of the frame-shaped support member 51c made of a lower surface and the support member connecting portions of the photocurable layer 40d, the lower surface and the support member connecting portion frame-like support member of the photocurable layer 40c 51
bの上面とを切り離せば、造形物4と支持部材5とが切り離せる。 If inseparable a top surface of b, decouple the molded object 4 and the support member 5. 造形物4に残る支持部材5の切り離し痕42 Disconnect marks 42 of the support member 5 remain in the molded object 4
は、光硬化層41dおよび41cの下面の輪郭線に沿って存在する。 It is present along the lower surface of the contour of the photocurable layer 41d and 41c. したがって切り離し痕42は外観上あまり目立たない。 Therefore disconnect marks 42 is not conspicuous appearance on too much.

【0030】上記実施形態では、図2および図3に示すように、光硬化層41dと枠状支持部材51cとの連結面形状、光硬化層41cと枠状支持部材51bとの連結面形状の何れもがコ字形をなしている。 [0030] In the above embodiment, as shown in FIGS. 2 and 3, the coupling surface shape of the photocurable layer 41d and the frame-like support member 51c, the connecting surface shape of the photocurable layer 41c and the frame-like support member 51b both are without a U-shaped. すなわち平面コ字形の支持部材連結部を採用している。 That employs a support member connecting portions of the flat U-shaped. このようなコ字形の支持部材連結部は強度的に優れている点で好ましい。 Support member connecting portions of such U-shaped is preferable in that it strength excellent. また、上記実施形態では、下層の光硬化層よりも上層の光硬化層が外方に張り出す部分では全ての光硬化層すなわち光硬化層41c、41dの下面に支持部材連結部となる枠状支持部材51c、51dを連結しているので、支持効果が高い。 Further, in the embodiment, the lower layer of all the parts upper layer of the photocurable layer to project outward than the photocurable layer photocurable layer or light-cured layer 41c, a frame shape having the bottom surface on the supporting member coupling portion 41d supporting members 51c, since the connecting 51d, a high supporting effect.

【0031】〔第2の実施形態〕この実施形態は、前記第1の実施形態と支持部材の形状が異なる。 [0031] [Second Embodiment This embodiment is different from the shape of the first embodiment and the support member. 図5に示すように、第1層の光硬化層40aと縦横の格子からなるハニカム形状の支持部材52aとを成形台22の上に形成する。 As shown in FIG. 5, to form the supporting member 52a of a honeycomb shape formed of a photocurable layer 40a and the vertical and horizontal grid of the first layer on the forming table 22. つぎに、図6に示すように、光硬化層40aと同形状の第2層の光硬化層40bを光硬化層40aの上に積層するとともに、ハニカム状支持部材52aの外側半分の形状と同一のハニカム状支持部材52bおよびハニカム状支持部材52bよりも内側で少し離れた位置に線状支持部材53bを形成する。 Next, as shown in FIG. 6, with laminating the photo hardening layer 40b of the photocurable layer 40a and the second layer of the same shape on the photocurable layer 40a, identical to the outer half shape of the honeycomb-shaped support member 52a than the honeycomb support member 52b and the honeycomb support member 52b to form linear support member 53b to a position slightly away inside.

【0032】図7に示すように、第3層の光硬化層40 As shown in FIG. 7, the photocurable layer of the third layer 40
cを、大部分は光硬化層40bに連結されるが一端辺が光硬化層40bよりも外側に張り出して線状支持部材5 The c, largely but is connected to the photo hardening layer 40b form a line one edge is protruding outside the photocurable layer 40b supporting member 5
3bに連結されるように形成する。 Formed to be connected to 3b. 言い換えると、線状支持部材53bは、光硬化層40cの平面形状の輪郭線で囲まれる領域のうち、下層の光硬化層40bの平面形状と重ならない領域に配置されていることになる。 In other words, the linear support member 53b, in the region surrounded by the contour line of the planar shape of the photocurable layer 40c, will be disposed in a region which does not overlap with the planar shape of the lower layer of the photocurable layer 40b. ハニカム状支持部材52bの上には線状支持部材53cが形成される。 On a honeycomb support member 52b has a linear support member 53c is formed.

【0033】図8に示すように、第4層の光硬化層40 As shown in FIG. 8, the photocurable layer of the fourth layer 40
dが、大部分は光硬化層40cに連結されるが一端辺が光硬化層40cよりも外側に張り出して線状支持部材5 d is supported largely but is connected to the photocurable layer 40c line-shaped end edges protrudes outward from the photocurable layer 40c member 5
3cに連結されるように形成される。 It is formed to be connected to 3c. ここでは、線状支持部材53cが、光硬化層40dの平面形状の輪郭線で囲まれる領域のうち、下層の光硬化層40cの平面形状と重ならない領域に配置されることになる。 Here, the linear support member 53c is in the region surrounded by the contour line of the planar shape of the photocurable layer 40d, it would be located in a region that does not overlap with the planar shape of the lower layer of the photocurable layer 40c.

【0034】以上の結果、線状支持部材53bが光硬化層40cに連結される支持部材連結部となり、線状支持部材53cが光硬化層40dに連結される支持部材連結部となり、残りのハニカム状支持部材52a、52bが支持部材本体となる。 [0034] As a result, it is the support member connecting portions which are linear support member 53b is connected to the photo hardening layer 40c becomes a support member connecting portion is linear support member 53c is connected to the photo hardening layer 40d, the rest of the honeycomb Jo support member 52a, 52b is the support member body. 図9に示すように、前記工程で作製された光硬化層40a〜40dからなる造形物4を樹脂液10から取り出し、支持部材連結部である線状支持部材53b、53cを造形物4から切り離せば、造形物4と支持部材5を分離できる。 As shown in FIG. 9, wherein the step D object 4 made of fabricated photocured layer 40a~40d removed from the resin solution 10 at a supporting member connecting portion linear support member 53b, inseparable and 53c from molded object 4 if, can be separated support member 5 and the molded object 4. 造形物4には、光硬化層40dと40cの下面のみに切り離し痕42が残る。 The molded object 4, disconnect marks 42 are left only on the lower surface of the photocurable layer 40d and 40c.

【0035】上記実施形態では、線状支持部材53b、 [0035] In the above embodiment, the linear support member 53b,
53dの狭い上面部分のみで造形物4と支持部材5とが連結されているので、造形物4と支持部材5との切り離しは容易であり、切り離し痕42も小さい。 Since only a narrow top portion of 53d and molded object 4 and the supporting member 5 is connected, disconnected the molded object 4 and the support member 5 is easy, disconnect mark 42 is also small. ハニカム状支持部材52a、52bは強度的に優れているので支持効果が高い。 Honeycomb support member 52a, 52b has a high supporting effect because the strength excellent. 〔第3の実施形態〕この実施形態は、前記実施形態と支持部材の形状が異なる。 Third Embodiment This embodiment is different from the shape of the embodiment and the support member.

【0036】図10に示すように、成形台22の上に、 As shown in FIG. 10, on the forming table 22,
第1層の光硬化層40aと十字状支持部材54aとを形成する。 To form the photo hardening layer 40a and the cross-shaped support member 54a of the first layer. 十字状支持部材54aは、平面十字形をなす単位形状の支持部材54aを、1列4個づつ2列で互いに間隔をあけて配置されている。 Cross-shaped support member 54a is a supporting member 54a of the unit shape forming a planar cross, they are spaced apart from each other in a row of four at a time two rows. 図11に示すように、第2層の光硬化層40bと、光硬化層40bに近い列の十字状支持部材54aの上に配置される線状支持部材53 As shown in FIG. 11, and the photo hardening layer 40b of the second layer, the linear support member is disposed on the cross-shaped support member 54a of the column near to the photocurable layer 40b 53
bと、残りの十字状支持部材54aの上に配置される十字状支持部材54bとが形成される。 And b, and the cross-shaped support member 54b disposed on the remainder of the cross-shaped support member 54a is formed. なお、前記図10 Incidentally, FIG. 10
の状態から図11の状態に移行する際には、成形台22 When moving from state to state in FIG. 11, the molding platform 22
を1段階分だけ沈めて光硬化層40aと十字状支持部材54aとの上に樹脂液10が流れ込むようにする。 The submerged by one step so that the resin liquid 10 flowing over the photocurable layer 40a and the cross-shaped support member 54a. このとき、十字状支持部材54aの間を樹脂液10が自由に流通するので、樹脂液10の液面が迅速に平滑化する。 At this time, between the cross-shaped support member 54a so that the resin liquid 10 to circulate freely, the liquid surface of the resin solution 10 is rapidly smoothed.

【0037】図12に示すように、第3層の光硬化層4 As shown in FIG. 12, the third layer of the photocurable layer 4
0cは第2層の光硬化層40bと線状支持部材53bの上にまたがって形成され、十字状支持部材54bの上には線状支持部材53cが形成される。 0c is formed across the top of the second layer of the photocurable layer 40b and the linear supporting member 53b, on a cross-shaped supporting member 54b has a linear support member 53c is formed. 第4層の光硬化層40dは、第3層の光硬化層40cと線状支持部材53 The photocurable layer 40d of the fourth layer, the third layer of the photocurable layer 40c and the linear supporting member 53
cにまたがって形成される。 It is formed across the c. 以上の結果、線状支持部材53bと53cとが支持部材連結部となり、十字状支持部材54aと54bとが支持部材本体となる。 As a result, and a linear supporting member 53b and 53c becomes a supporting member connecting portion, and the cross-shaped support member 54a and 54b is a supporting member main body.

【0038】上記実施形態では、支持部材本体として十字状支持部材54a、54bを用いることで、比較的少ない面積の支持部材であっても十分な支持機能を果たすことができる。 [0038] In the above embodiment, the cross-shaped support member 54a as the supporting member main body, the use of 54b, it can be a support member having a relatively small area play a sufficient supporting function. 〔第4の実施形態〕この実施形態では、前記実施形態と同様の十字状支持部材を採用するが、支持部材の構成が一部異なる。 In the Fourth Embodiment In this embodiment, employing the same cross-shaped supporting member and the embodiments, different configurations of the supporting member part.

【0039】図13に示すように、成形台22の表面全体に縦横に間隔をあけて十字状支持部材54a、54 As shown in FIG. 13, a cross-shaped support with an interval in a matrix on the entire surface of the forming table 22 members 54a, 54
a′を配置する。 To place a '. 図14に示すように、一部の十字状支持部材54a′の上に第1層の光硬化層40bを形成し、光硬化層40bの外側に配置された十字状支持部材54aの列の上部には、各十字状支持部材54a毎に短い直線状の支持部材すなわち全体として破線状の支持部材55bを形成する。 As shown in FIG. 14, the photo hardening layer 40b of the first layer is formed over part of the cross-shaped support member 54a ', the top of the column of the cross-shaped support member 54a which is arranged outside of the photocurable layer 40b to form a broken line-like support member 55b as the supporting member or the entire short straight for each cross-shaped support member 54a.

【0040】図15に示すように、光硬化層40bと破線状支持部材55bの上にかけて第2の光硬化層40c As shown in FIG. 15, the second photocurable layer 40c toward over the photocurable layer 40b and the dashed-like support member 55b
を形成し、十字状支持部材54bの上には破線状支持部材55cを形成する。 Forming a, on the cross-shaped support member 54b forms a broken line-shaped supporting member 55c. さらに、光硬化層40cと破線状支持部材55cの上にかけて第3の光硬化層40dを形成する。 Moreover, a third of the photocurable layer 40d toward on the photocurable layer 40c and the broken line-like support member 55c. したがって、破線状支持部材55bと55cとが支持部材連結部となり、残りの十字状支持部材54 Therefore, a broken line-like support member 55b and 55c becomes a supporting member connecting portion, the remainder of the cross-shaped support member 54
a、54bが支持部材本体となる。 a, 54b becomes the support member body. また、一部の十字状支持部材54a′は造形物全体を支持する役目を有する。 A part of the cross-shaped support member 54a 'has the role of supporting the entire shaped object.

【0041】この実施形態では、造形物と支持部材との連結が、破線状支持部材55b、55cで行われていて連結部分の面積が少ないので、造形物と支持部材との切り離しが容易で切り離し痕も目立たない。 [0041] In this embodiment, the connection between the shaped object and the support member, and a broken line-like support member 55b, since a small area of ​​the connecting portion have been conducted in 55c, detach easily detach the molded product and the support member It traces not even noticeable. また、第1層の光硬化層40bと成形台22との間に十字状支持部材54a′が存在しているので、成形台22に対する造形物の接触面積も少なくなり、成形台22からの造形物の取り外しも容易になる。 Further, since the cross-shaped support member 54a 'is present between the photo hardening layer 40b of the first layer and the forming table 22, also reduces the contact area of ​​the shaped article for forming table 22, shaped from the molding platform 22 Removing the thing becomes easy.

【0042】〔第5の実施形態〕この実施形態では、支持部材を一部の光硬化層のみに連結させている。 [0042] In the Fifth Embodiment This embodiment, a support member and is connected only to a part of the photocurable layer. 図16 Figure 16
に示すように、光硬化層40−1〜40−9までの9層の光硬化層を形成しているとともに、光硬化層40− As shown in, together to form a photo hardening layer of 9 layers up photocurable layer 40-1~40-9 photocurable layer 40-
3、40−5、40−7、40−9には線状の支持部材が積層された支持部材50−3、50−5、50−7、 Support member 50-3,50-5,50-7 the linear support members are laminated on 3,40-5,40-7,40-9,
50−9が形成されている。 50-9 is formed. すなわち、光硬化層40の2層毎に支持部材50で支持していることになる。 That is, that they are supported by the supporting member 50 at every two layers of the photocurable layer 40.

【0043】このように、一定の層数毎の光硬化層40 [0043] Thus, the photo hardening layers for each certain number of layers 40
に支持部材50を連結すれば、支持部材50の必要性をいちいち判断する手間が省ける。 If connecting the support member 50 in, each time trouble of determining can be saved the necessity of the support member 50. 〔第6の実施形態〕この実施形態では、造形物を形成する各光硬化層の支持の必要性を判断する方法を示している。 In the Sixth Embodiment This embodiment illustrates a method of determining the need for support of the photocurable layer to form a shaped object.

【0044】図17に示すように、光硬化層40−1〜 As shown in FIG. 17, the photo hardening layer 40-1~
40−9を積み重ねて形成するとともに、支持の必要な個所を判定して支持の必要な個所のみに支持部材50− Thereby forming a stack of 40-9, supporting only the required point of the determination to support the required point of the support member 50 -
7〜50−9を連結している。 Connecting the 7~50-9. 支持の必要な個所の判定方法を図18に示す。 The determination method of the required positions of the support shown in Figure 18. 光硬化層40…で構成される造形物の垂直断面形状すなわち図17のX−X線断面図を求める。 Request line X-X sectional view of a vertical cross-section i.e. 17 of the photocurable layer 40 ... shaped object composed. この断面図で、上層の光硬化層40の平面形状が下層の光硬化層40の平面形状と重ならない部分が存在する側で、各光硬化層40の下端隅部の基準点Pを各光硬化層40毎につないで包絡線Fを描く。 In this sectional view, the side where the portion planar shape of the upper layer of the photocurable layer 40 does not overlap with the planar shape of the lower layer of the photocurable layer 40 present, the optical reference point P of the lower corners of the photo hardening layer 40 draw envelope F connect each cured layer 40. この包絡線F This envelope F
は造形物の外形輪郭を表している。 It represents the outer contour of the shaped object. 各光硬化層40の基準点Pにおいて、前記外形輪郭線Fの接線と水平線Hとのなす角度すなわち接線の傾き角度θを求める。 In the reference point P of the photo hardening layer 40, obtaining the form inclination angle of the angle or tangential θ between the tangent line and the horizontal line H of the outer contour line F. 下層の光硬化層40よりも上層の光硬化層40が外側に張り出している長さが大きいほど傾き角度θは小さくなり、上層の光硬化層40を支持する必要性が高い。 The upper layer of the photocurable layer 40 than the lower layer of the photocurable layer 40 becomes small as the inclination angle θ is greater in length that are outwardly flared, it is highly necessary to support the upper layer of the photocurable layer 40.

【0045】そこで、予め設定された基準角度θ 0と各光硬化層40毎の傾き角度θを比較して、θ<θ 0であれば、その光硬化層40には支持部材連結部50を連結して支持する必要があると判定する。 [0045] Therefore, as compared to the reference angle theta 0 set in advance the inclination angle theta of the photocurable layer every 40, if theta <theta 0, the supporting member coupling portion 50 to the light curing layer 40 It determines that connection to it is necessary to support. 基準角度θ 0は例えば15°に設定される。 Reference angle theta 0 is set to, for example, 15 °. 上記のようにして支持部材5 Supporting member 5 as described above
0の形成の必要性を判定する方法は、造形物の形状データを電子的に演算することで簡単かつ正確に支持部材5 Method for determining the need for formation of 0, the shape data of the shaped product easily and accurately by electronically computing the support member 5
0の必要性を判定できる。 It can determine the need for 0.

【0046】〔第7の実施形態〕この実施形態は、造形物を形成する各光硬化層の支持の必要性を判断する別の方法を説明する。 [0046] The embodiment [Seventh Embodiment] describes an alternative method of determining the need for support of the photocurable layer to form a shaped object. 図19に示すように、上下に光硬化層40L、40Uが配置される場合、上層の光硬化層40 As shown in FIG. 19, the photocurable layer 40L vertically, if 40U are arranged, the upper layer of the photocurable layer 40
Uの平面形状(右上がり斜線ハッチングを施す)と下層の光硬化層40Lの平面形状(左上がり斜線ハッチングを施す)とは交差斜線ハッチングで表された領域で重なっている。 Overlapping at expressed in cross hatching area and U planar shape (subjected to right-up oblique lines) and a lower layer of the photocurable layer 40L of the planar shape (subjected to left-side up hatching). 左右のハッチングが重ならず光硬化層40U Without overlapping the left and right hatching photocurable layer 40U
のハッチングのみで表された領域40Xが、上下層の平面形状が重ならない領域である。 Hatched only in the represented region 40X is the region where the planar shape of the upper and lower layers do not overlap. 支持部材連結部は上記領域40Xに連結される。 The support member connecting portion is connected to the region 40X.

【0047】このような配置で、上層の光硬化層40U [0047] In such an arrangement, the upper layer of the photocurable layer 40U
に支持部材連結部が必要であるか否かを判定するには、 To determine whether support is member connecting portion is required to,
領域40Xの面積を求めて、この領域40Xの面積が基準面積よりも大きいか否かを対比し、領域40Xの面積が基準面積よりも大きければ、光硬化層40Uに支持部材連結部を連結する必要があると判定することができる。 Seeking area of ​​the region 40X, the area of ​​this region 40X is compared with greater or not than the reference area, it is larger than the reference area the area of ​​the region 40X, connecting the support member connecting portions in the photocurable layer 40U it can be determined that it is necessary.

【0048】基準面積として、光硬化層40Uの全面積を用い、光硬化層40Uの全面積に対する領域40Xの面積が一定の割合を超えたときに、支持部材連結部を連結して支える必要があると判定することもできる。 [0048] As a reference area, using the entire area of ​​the photocurable layer 40U, when the area of ​​the region 40X to the total area of ​​the photocurable layer 40U exceeds a certain rate, the need to support by connecting the support member connecting portions it is also possible to determine that there is. 支持部材連結部が必要であると判定されれば、図に示すように、支持部材連結部50Lが領域40Xの輪郭領域のうち下層の光硬化層40Lの領域と重ならない領域に上層の光硬化層40Uと連結されるように形成される。 If it is determined that it is necessary to support member connecting portion, as shown in FIG., The upper layer of the photocured in a region which does not overlap with the lower layer of the photocurable layer 40L of the region of the contour area of ​​the support member connecting portion 50L is a region 40X It is formed to be connected with the layer 40U.

【0049】前記のような領域40Xの面積による支持の必要性の判断は、造形物4に関するCADデータを電子的に演算すれば容易に行うことができる。 The decision needs area by supporting the like region 40X is capable of performing CAD data relating shaped object 4 easily be electronically computed. なお、上記面積による判定方法と前記した傾き角度による判定方法との両方の判定方法を組み合わせて、何れの判定方法でも必要な場合、あるいは、何れか一方の判定方法で必要と判定された場合に、支持部材連結部を形成すればよい。 Incidentally, a combination of both determination method of the determination method according to the inclination angle obtained by the a determination method according to the area, if any judging method also required, or if it is determined to be necessary in any one of the determination methods , may be formed support member connecting portion.

【0050】〔その他の実施形態〕造形物を支持する支持部材としては、前記した本発明の支持部材連結部を有する支持部材に加えて、従来技術として説明した光硬化層の複数層にまたがって連結されるような支持部材を併用することができる。 [0050] As the support member for supporting the Other Embodiments shaped object, in addition to the support member having a supporting member connecting portion of the present invention described above, across multiple layers of the photocured layer described as the prior art it can be used in combination support member as connected. この場合、支持部材を切り離した造形物に痕が残っていても造形物の利用上はそれほど問題がない場所については、前記した複数層にまたがって連結される支持部材を用い、外観形状などの問題で造形物に目立つ痕が残っては困る場所には、前記した本発明の支持部材連結部を有する支持部材のみを用いるようにすればよい。 In this case, for use on so much that no problem location of shaped articles also remain marks in the shaped article according to detach the supporting member, using a support member connected across multiple layers described above, such as external shape the location remains after the noticeable shaped object at issue trouble, it is sufficient to use only the supporting member having a supporting member connecting portion of the present invention described above.

【0051】 [0051]

【発明の効果】この発明にかかる三次元形状造形物の成形方法によれば、造形物と同じ手段で形成される支持部材によって造形物を簡単かつ適切に支持できるとともに、造形物から支持部材を切り離した際に造形物側に生じる痕が目立たないようにできる。 Effects of the Invention] According to the molding method of three-dimensionally shaped object according to the present invention, it is possible to easily and properly support the shaped object by a support member which is formed by the same means as the shaped object, the support member from the shaped object marks occurring shaped object side when disconnected can unobtrusively. その結果、形状精度が高く外観的にも良好な造形物が能率的に製造できることになる。 As a result, high appearance to better a shaped object shape accuracy becomes possible to efficiently manufacture.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】 この発明の実施形態を表し、造形工程の最初の段階を示す垂直断面図および水平断面図 [1] represents the embodiment of the present invention, the vertical cross-sectional view and a horizontal sectional view showing a first stage of building process

【図2】 次の段階を示す垂直断面図および水平断面図 [Figure 2] vertical cross-sectional view and a horizontal cross sectional view showing a next step

【図3】 次の段階を示す垂直断面図および水平断面図 [Figure 3] a vertical cross-sectional view and a horizontal cross sectional view showing a next step

【図4】 造形物から支持部材を切り離した状態を示す垂直断面図 [4] Vertical sectional view showing a state in which disconnect the support member from the shaped object

【図5】 別の実施形態を表し、造形工程の最初の段階を示す垂直断面図および水平断面図 [5] represents a different embodiment, a vertical cross-sectional view and a horizontal sectional view showing a first stage of building process

【図6】 次の段階を示す垂直断面図および水平断面図 [6] a vertical cross-sectional view and a horizontal cross sectional view showing a next step

【図7】 次の段階を示す垂直断面図および水平断面図 [7] vertical cross-sectional view and a horizontal cross sectional view showing a next step

【図8】 次の段階を示す垂直断面図および水平断面図 [8] Vertical sectional view and a horizontal sectional view showing the steps of

【図9】 造形物から支持部材を切り離した状態を示す垂直断面図 [9] a vertical sectional view showing a state in which disconnect the support member from the shaped object

【図10】 別の実施形態を表し、造形工程の最初の段階を示す垂直断面図および水平断面図 [Figure 10] represents a different embodiment, a vertical cross-sectional view and a horizontal sectional view showing a first stage of building process

【図11】 次の段階を示す垂直断面図および水平断面図 [11] the vertical cross-sectional view and a horizontal cross sectional view showing a next step

【図12】 次の段階を示す垂直断面図および水平断面図 [12] the vertical cross-sectional view and a horizontal cross sectional view showing a next step

【図13】 別の実施形態を表し、造形工程の最初の段階を示す垂直断面図および水平断面図 [Figure 13] represents a different embodiment, a vertical cross-sectional view and a horizontal sectional view showing a first stage of building process

【図14】 次の段階を示す垂直断面図および水平断面図 [Figure 14] the vertical cross-sectional view and a horizontal cross sectional view showing a next step

【図15】 次の段階を示す垂直断面図および水平断面図 [15] the vertical cross-sectional view and a horizontal cross sectional view showing a next step

【図16】 別の実施形態を表し、造形工程を示す垂直断面図 [Figure 16] represents a different embodiment, a vertical cross-sectional view illustrating a molding process

【図17】 別の実施形態を表し、造形工程を示す垂直断面図および平面図 [Figure 17] represents a different embodiment, a vertical cross-sectional view and a plan view showing the molding process

【図18】 支持の必要性を判定する方法を説明する模式図 Figure 18 is a schematic view illustrating a method for determining the need for support

【図19】 別の実施形態を表し、支持の必要性を判定する方法を説明する模式図および平面図 [Figure 19] represents another embodiment, schematic view and a plan view illustrating a method for determining the need for support

【符号の説明】 DESCRIPTION OF SYMBOLS

4 造形物 5 支持部材 10 光硬化性樹脂液 20 昇降部材 22 成形台 30 レーザ光 40 光硬化層 50 支持部材 51 枠状支持部材 52 ハニカム状支持部材 53 線状支持部材 54 十字状支持部材 55 破線状支持部材 4 shaped article 5 supporting member 10 photocurable resin liquid 20 lifting member 22 forming table 30 the laser beam 40 photocured layer 50 supporting member 51 frame-like support member 52 honeycomb support member 53 wire-like support member 54 a cross-shaped support member 55 broken line Jo support member

Claims (8)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】光硬化性樹脂に光を照射して光硬化層を形成し、この光硬化層を複数層積み重ねて所望の三次元形状を有する造形物を製造する際に、造形物のうち支持を必要とする部分に、これを支持する固定構造体をつなぐ支持部材を連結する方法において、 造形物を形成する各光硬化層に対して支持が必要であるか否かを判定し、前記支持を必要とする光硬化層の平面形状の輪郭線領域のうち、下層の光硬化層の平面形状と重ならない領域の一部または全ての領域で、前記支持を必要とする光硬化層に連結されるように支持部材の連結部分を造形物と同じ方法で形成する三次元形状造形物の製造方法。 1. A is irradiated with light to form a photo hardening layer photocurable resin, in producing a molded article having a desired three-dimensional shape the photocurable layer stacked plurality of layers, of the shaped article the area in need of support, in a method of connecting a supporting member connecting the fixed structure for supporting the determines whether it is necessary to support the respective photocurable layer to form a shaped object, the among the outline area of ​​the planar shape of the supporting photocurable layer which requires a portion of the region which does not overlap with the planar shape of the lower layer of the photocurable layer or in all areas, connected to the photocurable layer in need of said support method for producing a three-dimensionally shaped object formed by shaped object in the same way the connection portion of the support member so as to be.
  2. 【請求項2】支持部材のうち前記連結部分以外の部分である支持部材本体を造形物と接触しないように造形物と同じ方法で形成する請求項1に記載の三次元形状造形物の製造方法。 2. A method for producing a three-dimensionally shaped object according to claim 1 formed in the same manner as a portion other than the connecting portion support member body D object modeled object so as not to contact the one of the support members .
  3. 【請求項3】前記支持部材本体として、平面十字形をなす支持部材本体を形成する請求項2に記載の三次元形状造形物の製造方法。 As claimed in claim 3, wherein the supporting member main body, a manufacturing method of three-dimensionally shaped object according to claim 2 for forming a supporting member main body which forms a planar cross.
  4. 【請求項4】前記支持部材本体として、平面ハニカム状をなす支持部材本体を形成する請求項2に記載の三次元形状造形物の製造方法。 As claimed in claim 4 wherein said support member body, a manufacturing method of three-dimensionally shaped object according to claim 2 for forming a supporting member main body which forms a planar honeycomb.
  5. 【請求項5】前記支持部材連結部として、平面破線状をなす支持部材連結部を形成する請求項1〜4の何れかに記載の三次元形状造形物の製造方法。 5. As the support member connecting portion, a manufacturing method of three-dimensionally shaped object according to claim 1 for forming a supporting member connecting portion forming a plane like a dashed line.
  6. 【請求項6】前記造形物を形成する各光硬化層に対して支持が必要であるか否かを判定する方法として、所定の積層ピッチ毎に支持が必要と判定する請求項1〜5の何れかに記載の三次元形状造形物の製造方法。 6. a method for determining whether the support is necessary for each photocured layer that forms the molded object, support for each predetermined stacking pitch is required determines the claims 1 to 5 method for producing a three-dimensionally shaped object according to any one.
  7. 【請求項7】前記造形物を形成する各光硬化層に対して支持が必要であるか否かを判定する方法として、造形物を光硬化層の積層方向に断面したときの外形輪郭線の接線と光硬化層の面方向との傾き角度が所定の基準角度を下回る位置の光硬化層に対して支持が必要と判定する請求項1〜5の何れかに記載の三次元形状造形物の製造方法。 As 7. The method determines whether it is necessary to support the respective photocurable layer to form the molded object, in the contour when the cross section of the shaped object in the stacking direction of the photocurable layer tangent angle of inclination of the plane direction of the photocurable layer is three-dimensionally shaped object according to any support of claims 1-5 determines required to light cured layer of a position below a predetermined reference angle Production method.
  8. 【請求項8】前記造形物を形成する各光硬化層に対して支持が必要であるか否かを判定する方法として、この光硬化層の平面形状のうち下層の光硬化層の平面形状と重ならない領域の面積が所定の基準面積を超える光硬化層に対して支持が必要と判定する請求項1〜5の何れかに記載の三次元形状造形物の製造方法。 8. a method for determining whether the support is necessary for each photocured layer that forms the molded object, and the planar shape of the lower layer of the photocurable layer of the planar shape of the photocurable layer method for producing a non-overlapping three-dimensionally shaped object according to any of the photocurable determines claims support is needed for layer 1-5 exceeds the reference area area predetermined region.
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JP2005067998A (en) * 2003-08-04 2005-03-17 Murata Mfg Co Ltd Slurry for optical three-dimensional shaping, method for fabricating optical three-dimensional shaped article, and optical three-dimensional shaped article
JP2007062050A (en) * 2005-08-29 2007-03-15 Shiyoufuu:Kk Shaping data forming system, manufacturing method and shape data forming program
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US9700971B2 (en) 2001-05-25 2017-07-11 Conformis, Inc. Implant device and method for manufacture
US9849019B2 (en) 2012-09-21 2017-12-26 Conformis, Inc. Methods and systems for optimizing design and manufacture of implant components using solid freeform fabrication

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US9439767B2 (en) 2001-05-25 2016-09-13 Conformis, Inc. Patient-adapted and improved articular implants, designs and related guide tools
US9700971B2 (en) 2001-05-25 2017-07-11 Conformis, Inc. Implant device and method for manufacture
US9579110B2 (en) 2001-05-25 2017-02-28 Conformis, Inc. Patient selectable joint arthroplasty devices and surgical tools
JP2005067998A (en) * 2003-08-04 2005-03-17 Murata Mfg Co Ltd Slurry for optical three-dimensional shaping, method for fabricating optical three-dimensional shaped article, and optical three-dimensional shaped article
JP2007062050A (en) * 2005-08-29 2007-03-15 Shiyoufuu:Kk Shaping data forming system, manufacturing method and shape data forming program
US9517134B2 (en) 2007-02-14 2016-12-13 Conformis, Inc. Implant device and method for manufacture
JP2011501251A (en) * 2007-10-10 2011-01-06 マテリアライズ・ナムローゼ・フエンノートシャップMaterialise Nv Method and apparatus for automatically generating a support for the object to be produced by rapid prototyping methods
JP2013542867A (en) * 2010-09-21 2013-11-28 ザ・ボーイング・カンパニーThe Boeing Company Fast molding method and the high-speed molding apparatus
US9408686B1 (en) 2012-01-20 2016-08-09 Conformis, Inc. Devices, systems and methods for manufacturing orthopedic implants
JP2015512762A (en) * 2012-04-13 2015-04-30 コンフォーミス・インコーポレイテッドConforMIS, Inc. Device and method for additive manufacturing of the implant component
US9636229B2 (en) 2012-09-20 2017-05-02 Conformis, Inc. Solid freeform fabrication of implant components
US9849019B2 (en) 2012-09-21 2017-12-26 Conformis, Inc. Methods and systems for optimizing design and manufacture of implant components using solid freeform fabrication
JP2016517470A (en) * 2013-03-05 2016-06-16 ユナイテッド テクノロジーズ コーポレイションUnited Technologies Corporation Platform built for the additive manufacturing
JP2016533903A (en) * 2013-08-05 2016-11-04 レニショウ パブリック リミテッド カンパニーRenishaw Public Limited Company Additive manufacturing method and apparatus

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