TWI585558B - Three dimensional printing method - Google Patents
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本發明是有關於一種列印方法，尤其是有關於一種立體列印方法。 The present invention relates to a printing method, and more particularly to a three-dimensional printing method.
自從二十世紀開始，隨著世界經濟競爭的日益激烈化和全球化，產品製造商們越來越需要以最短的時間製造出符合人們消費需求的新產品來搶佔市場。在一九八零年代末出現一種快速成型(Rapid Prototyping，簡稱RP)技術就是在這樣的背景下提出並逐步得以發展的。快速成型技術是一種逐層零件製造工藝，快速成型技術突破傳統的材料變形成型和去除材料成型的工藝方法，使用近乎全自動化的工藝從CAD文件直接生產所需要的模型或模具，可以顯著地減少產品原型的開發時間和成本，極大的提高產品的質量；另外，快速成型技術在製造過程中不需要任何傳統意義上的夾治具、刀具或模具即可製造出任何複雜形狀的零部件。因此，快速成型技術在現代製造業中越來越具有競爭力，有望成為二十一世紀的的主流製造技術。 Since the beginning of the twentieth century, with the increasingly fierce competition and globalization of the world economy, product manufacturers have increasingly needed to create new products that meet the needs of people's consumption in the shortest time to seize the market. In the late 1980s, a rapid prototyping (RP) technology was proposed and gradually developed in this context. Rapid prototyping technology is a layer-by-layer part manufacturing process. Rapid prototyping technology breaks through the traditional material deformation forming and material removal process. The model or mold required for direct production from CAD files using a nearly fully automated process can be significantly reduced. The development time and cost of product prototypes greatly improve the quality of the products; in addition, rapid prototyping technology can produce any complex shape parts without any conventional fixtures, tools or molds in the manufacturing process. Therefore, rapid prototyping technology is becoming more and more competitive in modern manufacturing and is expected to become the mainstream manufacturing technology in the 21st century.
另一方面，立體列印技術是近似快速成型技術的加法製造技術的一種形式，在加法製造技術中三維對象是通過連續的切層所創建出來的。立體列印技術相對於其他的加法製造技術而言，具有速度快，價格便宜，高易用性等優 點。立體列印機台就是可以「列印」出真實立體物體的一種設備，採用分層加工、疊加成形，即通過逐層增加材料來生成立體的物件實體，與傳統的去除材料加工技術完全不同。另一方面，稱之為「列印」技術是參照了其技術原理，因為分層加工的過程與習知的「噴墨列印」技術十分相似。 On the other hand, the three-dimensional printing technique is a form of additive manufacturing technology that approximates rapid prototyping technology in which three-dimensional objects are created by successive slitting. Compared with other additive manufacturing technologies, the three-dimensional printing technology has the advantages of high speed, low price, high ease of use, etc. point. A three-dimensional printing machine is a device that can "print" a real three-dimensional object. It uses layered processing and superposition forming, that is, creating a three-dimensional object entity by adding materials layer by layer, which is completely different from the traditional material removal processing technology. On the other hand, the technique of "printing" refers to its technical principle, because the process of layered processing is very similar to the conventional "inkjet printing" technology.
目前典型的立體列印技術有：光固化立體造型(StereoLithography Apparatus，SLA)、分層物件製作(Laminated Object Manufacturing，LOM)、選擇性激光燒結(Selective Laser Sintering，SLS)和熔融沉積造型(Fused Deposition Modeling，FDM)等，其中各種方法具有其自身的特點和適用範圍。 At present, typical stereolithography technologies include: Stereo Lithography Apparatus (SLA), Laminated Object Manufacturing (LOM), Selective Laser Sintering (SLS), and Fused Deposition (Fused Deposition). Modeling, FDM), etc., in which various methods have their own characteristics and scope of application.
然而，對於目前的立體列印技術而言，列印立體物件時需要增設許多支撐構件來支持立體物件側向延伸而懸空的構形。但是，支撐構件的形成多半需要額外的成本支出，在無形中增加了立體物件製作時的材料成本，造成列印材料的浪費，同時也耗損了大量的製作時間成本。 However, for the current three-dimensional printing technology, a plurality of supporting members are required to be printed when the three-dimensional object is printed to support the configuration in which the three-dimensional object is laterally extended and suspended. However, the formation of the support member mostly requires additional cost, which invisibly increases the material cost in the manufacture of the three-dimensional object, causes waste of the printing material, and also consumes a large amount of production time cost.
本發明提供了一種立體列印方法，以解決先前技術所造成的問題。 The present invention provides a three-dimensional printing method to solve the problems caused by the prior art.
根據本發明一實施例，其揭露了一種立體列印方法，適用於列印立體物件，立體物件具有本體部以及本體部的側邊延伸出的延伸部，立體列印方法包括以下步驟。獲取關於該立體物件的一立體模型資訊。根據該立體模型資訊，獲取關於該立體物件的在X-Y平面上的一正投影圖檔及關於該立體物件沿Z軸形成的多個切層物件，並產生對應該些切層物件的在X-Y平面上的多個二維圖檔。依序地將每一該二 維圖檔與該正投影圖檔根據彼此對應的邊緣疊加而形成多個列印圖檔，其中每一該列印圖檔定義出一立體成形區及一堆疊支撐區。依序堆疊由成形粉末構成的多個成形粉層，並對應地根據該些列印圖檔，在每一該成形粉層上固化出對應的該立體成形區而共同地形成該立體物件，同時地，在每一該成形粉層上固化出對應的該堆疊支撐區的部分邊緣而共同地形成一第一側牆及一第二側牆，其中該第一側牆與該延伸部的外側緣相隔一第一間距且該第二側牆與該本體部鄰近該延伸部的側緣相隔一第二間距，列印出的該立體物件與該第一側牆及該第二側牆彼此不接觸。 According to an embodiment of the invention, a three-dimensional printing method is disclosed, which is suitable for printing a three-dimensional object. The three-dimensional object has a body portion and an extension extending from a side of the body portion. The three-dimensional printing method comprises the following steps. Obtain a stereo model information about the three-dimensional object. Obtaining, according to the stereo model information, an orthographic image on the XY plane of the three-dimensional object and a plurality of sliced objects formed along the Z axis of the three-dimensional object, and generating an XY plane corresponding to the sliced object Multiple 2D image files on. Sequentially each of the two The image file and the orthographic image file are superimposed according to mutually corresponding edges to form a plurality of print patterns, wherein each of the print patterns defines a solid forming area and a stack supporting area. Forming a plurality of forming powder layers composed of the formed powders in sequence, and correspondingly forming the corresponding three-dimensional forming regions on each of the forming powder layers according to the printing patterns to jointly form the three-dimensional objects, and simultaneously forming the three-dimensional objects Forming a corresponding partial edge of the stacked support region on each of the formed powder layers to collectively form a first sidewall spacer and a second sidewall spacer, wherein the first sidewall spacer and the outer edge of the extension portion Separating a first spacing and the second sidewall is spaced apart from the side edge of the extending portion by a second spacing, the printed three-dimensional object and the first sidewall and the second sidewall are not in contact with each other .
在本發明一實施例中，立體列印方法還包含以下步驟。根據包含最底層的該切層物件的該二維圖檔的該列印圖檔進行列印時，完整地列印出該列印圖檔的該堆疊支撐區而形成一第一底壁。 In an embodiment of the invention, the three-dimensional printing method further comprises the following steps. When printing is performed on the print image of the two-dimensional image file containing the bottom layer of the sliced object, the stacked support region of the print image file is completely printed to form a first bottom wall.
在本發明一實施例中，該第一底壁具有沿Z軸貫穿的至少一穿孔。 In an embodiment of the invention, the first bottom wall has at least one perforation extending through the Z-axis.
在本發明一實施例中，立體列印方法還包含以下步驟。當該些列印圖檔的其中之一的該立體成形區與其前一層的該列印圖檔的該堆疊支撐區的邊緣部分重疊時，完整地列印其前二層的該列印圖檔的該堆疊支撐區而形成一第二底壁。 In an embodiment of the invention, the three-dimensional printing method further comprises the following steps. When the three-dimensional forming area of one of the print patterns overlaps the edge portion of the stacked support area of the print pattern of the previous layer, the print pattern of the first two layers is completely printed The stack of support regions forms a second bottom wall.
在本發明一實施例中，立體列印方法還包含以下步驟。以具有第一光訊號強度的第一雷射燒結地列印每一該立體成形區並以具有第二光訊號強度的第二雷射燒結地列印對應的該堆疊支撐區。 In an embodiment of the invention, the three-dimensional printing method further comprises the following steps. Each of the three-dimensional shaped regions is sintered with a first laser having a first optical signal intensity and the corresponding stacked support regions are printed with a second laser having a second optical signal intensity.
在本發明一實施例中，該第一光訊號強度大於該第二光訊號強度。 In an embodiment of the invention, the first optical signal strength is greater than the second optical signal strength.
在本發明一實施例中，該第一雷射或該第二雷射 的光束尺寸為1μm至1mm之間。 In an embodiment of the invention, the first laser or the second laser The beam size is between 1 μm and 1 mm.
在本發明一實施例中，每一該第一間距的最短直線距離等於每一該第二間距。 In an embodiment of the invention, the shortest straight line distance of each of the first pitches is equal to each of the second pitches.
在本發明一實施例中，每一該第一間距或每一該第二間距的最短直線距離為1μm。 In an embodiment of the invention, the shortest straight line distance of each of the first pitch or each of the second pitches is 1 μm.
在本發明一實施例中，每一該成形粉層包含一有機粉末或一無機粉末。 In an embodiment of the invention, each of the shaped powder layers comprises an organic powder or an inorganic powder.
本發明實施例的立體列印方法可根據列印圖檔的立體成形區堆疊地列印出立體物件，且在列印立體物件的同時，根據堆疊支撐區列印出的第一側牆及第二側牆結合未被固化的成形粉層可用來支撐列印出的立體物件自本體部向外延伸的延伸部。因此，根據堆疊支撐區列印出的第一側牆及第二側牆來輔助列印出的立體物件使其順利完整的成形的立體列印方法，可提高立體列印方法在使用上及操作上的便利度。此外，由於本實施例的立體列印方法僅在成形粉層上燒結列印第一側牆及第二側牆，未被固化的成形粉層可在立體物件列印完成後，藉由移除第一側牆及第二側牆而可再次被收集利用於其他的立體物件的立體列印製程上，使得使用本實施例的立體列印方法來製作立體物件可具有較好的使用操作便利性，同時，未被固化的成形粉層還可再次利用，避免了成形粉層的材料浪費，進而可降低列印立體物件所需的生產成本。 The three-dimensional printing method of the embodiment of the present invention can print a three-dimensional object in a stack according to the three-dimensional forming area of the printing image file, and print the first side wall and the first side wall according to the stacked supporting area while printing the three-dimensional object. The two side wall combined with the uncured shaped powder layer can be used to support the extension of the printed three-dimensional object extending outward from the body portion. Therefore, according to the first side wall and the second side wall printed by the stacked support area, the three-dimensional object is printed to facilitate the smooth and complete forming of the three-dimensional printing method, thereby improving the use and operation of the three-dimensional printing method. Convenience. In addition, since the three-dimensional printing method of the embodiment sinters and prints the first side wall and the second side wall only on the forming powder layer, the unsolidified forming powder layer can be removed after the three-dimensional object printing is completed. The first side wall and the second side wall can be collected and used again on the three-dimensional printing process of other three-dimensional objects, so that the three-dimensional printing method of the embodiment can be used to manufacture the three-dimensional object, which can have better operation convenience. At the same time, the uncured forming powder layer can be reused, thereby avoiding material waste of the forming powder layer, thereby reducing the production cost required for printing the three-dimensional object.
100‧‧‧立體列印方法 100‧‧‧Three-dimensional printing method
110~140‧‧‧步驟 110~140‧‧‧Steps
200‧‧‧立體物件 200‧‧‧Three-dimensional objects
210‧‧‧本體部 210‧‧‧ Body Department
220‧‧‧延伸部 220‧‧‧Extension
300‧‧‧列印圖檔 300‧‧‧printing
310‧‧‧立體成形區 310‧‧‧Three-dimensional forming zone
320‧‧‧堆疊支撐區 320‧‧‧Stacked support area
322‧‧‧部分 Section 322‧‧‧
324‧‧‧區域範圍 324‧‧‧Scope
400、500‧‧‧立體列印裝置 400, 500‧‧‧ three-dimensional printing device
402‧‧‧成形粉層 402‧‧‧Formed powder layer
410‧‧‧列印平台 410‧‧‧Printing platform
420‧‧‧第一側牆 420‧‧‧First side wall
422‧‧‧第一間距 422‧‧‧first spacing
430‧‧‧第二側牆 430‧‧‧Second side wall
432‧‧‧第二間距 432‧‧‧second spacing
440‧‧‧第一底壁 440‧‧‧ first bottom wall
442‧‧‧穿孔 442‧‧‧Perforation
450‧‧‧第二底壁 450‧‧‧ second bottom wall
為讓本發明之敘述和其他目的、特徵、優點與實施例能更明顯易懂，所附圖式之說明如下：圖1係繪示依照本發明一實施例的一種立體列印方法的 步驟流程圖。 The description of the present invention and other objects, features, advantages and embodiments will be more apparent and understood. FIG. 1 illustrates a three-dimensional printing method in accordance with an embodiment of the present invention. Step flow chart.
圖2係繪示依照圖1的立體列印方法所述的立體物件的立體示意圖。 2 is a perspective view showing a three-dimensional object according to the three-dimensional printing method of FIG. 1.
圖3係繪示依照圖1的立體列印方法所述的其中一列印圖檔的示意圖。 FIG. 3 is a schematic diagram showing one of the print patterns according to the three-dimensional printing method of FIG. 1.
圖4係繪示依照圖1的立體列印方法列印立體物件時的一實施例的示意圖。 FIG. 4 is a schematic view showing an embodiment of the method of printing a three-dimensional object according to the three-dimensional printing method of FIG. 1. FIG.
圖5係繪示依照圖1的立體列印方法列印立體物件時的另一實施例的示意圖。 FIG. 5 is a schematic view showing another embodiment of printing a three-dimensional object according to the three-dimensional printing method of FIG. 1. FIG.
有關本發明之前述及其他技術內容、特點與功效，在以下配合參考圖式之各實施例的詳細說明中，將可清楚的呈現。以下實施例中所提到的方向用語，例如：「上」、「下」、「前」、「後」、「左」、「右」等，僅是參考附加圖式的方向。因此，使用的方向用語是用來說明，而並非用來限制本發明。並且，在下列各實施例中，相同或相似的元件將採用相同或相似的標號。 The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the embodiments of the invention. The directional terms mentioned in the following embodiments, such as "upper", "lower", "front", "back", "left", "right", etc., are only directions referring to the additional schema. Therefore, the directional terminology used is for the purpose of illustration and not limitation. Also, in the following embodiments, the same or similar elements will be given the same or similar reference numerals.
請參照圖1，其繪示依照本發明一實施例的一種立體列印方法100的步驟流程圖。如圖1所示，應先了解到，本實施例所述的立體列印方法可適用於一立體列印裝置，使其立體裝置可利用讀取關於一立體物件的立體模型資訊來列印地複製出相同構形的立體物件，其中立體模型資訊可為一數位立體圖像檔案，其可由一電腦主機透過電腦輔助設計(computer-aided design，CAD)或動畫建模軟體等建構而成，用以供立體列印裝置讀取並依據此立體模型資訊來列印地複製相同構形的立體物件。舉例來說，如圖2所示，本實施例 的立體物件200可具有本體部210以及本體部210的側邊延伸出的延伸部220，但不以此為限。 Please refer to FIG. 1 , which is a flow chart of steps of a three-dimensional printing method 100 according to an embodiment of the invention. As shown in FIG. 1 , it should be understood that the three-dimensional printing method described in this embodiment can be applied to a three-dimensional printing device, so that the three-dimensional device can print the three-dimensional model information about a three-dimensional object. Copying the three-dimensional object of the same configuration, wherein the stereo model information can be a digital stereo image file, which can be constructed by a computer host through computer-aided design (CAD) or animation modeling software. The three-dimensional object of the same configuration is printed by the three-dimensional printing device for printing and copying according to the three-dimensional model information. For example, as shown in FIG. 2, this embodiment The three-dimensional object 200 can have a body portion 210 and an extension portion 220 extending from a side of the body portion 210, but is not limited thereto.
請回到圖1，本實施例的立體列印方法100包括以下步驟。 Returning to FIG. 1, the three-dimensional printing method 100 of the present embodiment includes the following steps.
步驟110：藉由電腦主機透過電腦輔助設計(computer-aided design，CAD)或動畫建模軟體等建構而獲取關於立體物件的立體模型資訊。 Step 110: Obtain stereoscopic model information about the three-dimensional object by using a computer-aided design (CAD) or an animation modeling software.
步驟120：根據立體模型資訊，獲取關於立體物件的在X-Y平面上的正投影圖檔及關於立體物件沿Z軸形成的多個切層物件，並產生對應切層物件的在X-Y平面上的多個二維圖檔。應了解到，前述的切層物件相對應的堆疊後即為前述的立體物件的構形。 Step 120: Obtain, according to the stereo model information, an orthographic image on the XY plane of the three-dimensional object and a plurality of sliced objects formed along the Z-axis of the three-dimensional object, and generate a plurality of corresponding objects in the XY plane of the sliced object. Two-dimensional image files. It should be understood that the aforementioned stacked objects are stacked in a corresponding manner to the configuration of the aforementioned three-dimensional object.
詳細來說，電腦主機分析立體模型資訊而取得正投影圖檔及數個關於切層物件的二維圖檔。應了解到，前述的二維圖檔可為立體物件沿Z軸模擬分割為多個切層物件後，對於每一切層物件在X-Y平面上所進行的正投影所產生的圖檔。在本實施例中，X-Y平面與Z軸彼此垂直，也就是說，Z軸與X-Y平面的法線彼此平行，但不以此為限。 In detail, the computer host analyzes the stereo model information and obtains the orthographic image file and several two-dimensional image files about the sliced object. It should be understood that the foregoing two-dimensional image file may be an image file generated by the orthographic projection performed on the X-Y plane of each layer object after the three-dimensional object is simulated and divided into a plurality of sliced objects along the Z-axis. In the present embodiment, the X-Y plane and the Z axis are perpendicular to each other, that is, the normals of the Z axis and the X-Y plane are parallel to each other, but are not limited thereto.
步驟130：依序地將每一二維圖檔與正投影圖檔根據彼此對應的邊緣疊加而形成多個列印圖檔，其中每一列印圖檔定義出立體成形區及堆疊支撐區。應了解到，立體成形區即為每一二維圖檔中關於對應的切層物件的資訊。因此，立體列印裝置可根據列印圖檔中二維圖檔的資訊而複製切層物件，進一步將對應的切層物件組合而完成立體物件的列印。然而，為了在立體列印過程中，避免立體物件的延伸部懸空，而需要同時地根據列印圖檔中關於堆疊支撐區的資訊來對應的列印出支撐延伸部的支撐構件。 Step 130: sequentially forming each of the two-dimensional image files and the orthographic projection files according to mutually corresponding edges to form a plurality of printing patterns, wherein each of the printing patterns defines a three-dimensional forming area and a stacked supporting area. It should be understood that the three-dimensional forming zone is the information about the corresponding sliced object in each two-dimensional image file. Therefore, the three-dimensional printing device can copy the sliced object according to the information of the two-dimensional image file in the printed image file, and further combine the corresponding sliced object to complete the printing of the three-dimensional object. However, in order to avoid the extension of the extension of the three-dimensional object during the three-dimensional printing process, it is necessary to simultaneously print the support member of the support extension according to the information about the stacked support area in the print image.
詳細來說，請參照圖3，其係繪示依照圖1的立 體列印方法所述的列印圖檔的其中之一的示意圖。其中，每一列印圖檔300的立體成形區310即為對應的二維圖檔中關於切層物件的正投影資訊，另一方面，列印圖檔300的堆疊支撐區320為每一列印圖檔中對應正投影圖檔的邊緣扣除立體成形區310以外的部分322加上用以堆疊形成後述的第一側牆420及第一間距422(請參照圖4)的區域範圍324。應了解到，本實施例所述的列印圖檔300可為對應圖4中的對應地列印第二個切層物件時立體列印裝置所讀取的列印圖檔300，也就是指自列印平台向上數的第二個切層物件的列印圖檔300，但不以此為限。 In detail, please refer to FIG. 3 , which is shown in accordance with FIG. 1 . A schematic diagram of one of the print patterns described in the body print method. The three-dimensional forming area 310 of each of the printed documents 300 is the orthographic projection information about the sliced object in the corresponding two-dimensional image file. On the other hand, the stacked supporting area 320 of the printing image file 300 is printed for each column. The portion 322 of the file corresponding to the edge of the orthographic projection image minus the three-dimensional forming region 310 is added to the region range 324 for stacking the first side wall 420 and the first pitch 422 (see FIG. 4) which will be described later. It should be understood that the print image file 300 described in this embodiment may be the print image file 300 read by the three-dimensional printing device when the second sliced object is correspondingly printed in FIG. 4, that is, The print image file 300 of the second sliced object from the printing platform upward is not limited thereto.
步驟140：依序堆疊由成形粉末構成的多個成形粉層，並對應地根據列印圖檔，在每一成形粉層上固化出對應的立體成形區而共同地形成立體物件，同時地，在每一成形粉層上固化出對應的堆疊支撐區的部分邊緣而共同地形成第一側牆及第二側牆，其中第一側牆與延伸部的外側緣相隔第一間距且第二側牆與本體部鄰近延伸部的側緣相隔第二間距，列印出的立體物件與第一側牆及第二側牆彼此不接觸。 Step 140: sequentially stacking a plurality of forming powder layers composed of the formed powder, and correspondingly forming corresponding solid forming regions on each of the forming powder layers according to the printing pattern to collectively form a three-dimensional object, and simultaneously, And forming a first side wall and a second side wall together on each of the forming powder layers to form a first side wall and a second side wall, wherein the first side wall is spaced apart from the outer edge of the extending portion by a first interval and the second side The wall is spaced apart from the side edge of the body portion by a second distance, and the printed three-dimensional object and the first side wall and the second side wall are not in contact with each other.
詳細來說，可同時參照圖4，在立體列印裝置400的列印平台410上逐層地塗佈成形粉末而形成成形粉層402，並逐一地根據列印圖檔提供的資訊，逐一地在每一成形粉層402上固化出對應的立體成形區而共同地形成立體物件200。在本實施例中，在每一成形粉層上，可使用具有第一光訊號強度的第一雷射燒結地列印每一立體成形區並以具有第二光訊號強度的第二雷射燒結地列印對應的堆疊支撐區，其中第一光訊號強度大於第二光訊號強度，也就是說，本實施例可利用最佳的光訊號強度的雷射來列印立體物件200，同時，以較弱的光訊號強度的雷射來列印用以支撐立體物件200的延伸部210的支撐構件，可節省整體發射雷射的能量，而 可減少列印所需的成本。應了解到，前述的用以支撐立體物件200的延伸部210的支撐構件可為第一側牆420、第二側牆430以及堆疊地沒有被燒結的成形粉層402。 In detail, referring to FIG. 4, the forming powder is applied layer by layer on the printing platform 410 of the three-dimensional printing device 400 to form the forming powder layer 402, and one by one according to the information provided by the printing image file, one by one. A solid shaped article 200 is collectively formed by solidifying a corresponding three-dimensional shaped region on each of the formed powder layers 402. In this embodiment, on each of the forming powder layers, each of the three-dimensional forming regions may be sintered using a first laser having a first optical signal intensity and sintered by a second laser having a second optical signal intensity. The corresponding stacking support area is printed, wherein the first optical signal intensity is greater than the second optical signal intensity, that is, the embodiment can use the best optical signal intensity laser to print the three-dimensional object 200, and at the same time, The weaker optical intensity of the laser prints the support member for supporting the extension 210 of the three-dimensional object 200, thereby saving the energy of the overall laser emission. Reduce the cost of printing. It should be appreciated that the aforementioned support members for supporting the extensions 210 of the three-dimensional article 200 may be a first sidewall spacer 420, a second sidewall spacer 430, and a formed powder layer 402 that is stacked without being sintered.
詳細來說，第一雷射或第二雷射的光束尺寸可為1μm至1mm之間；第一雷射列印出的立體物件的解析度可為100dpi以上；第一雷射或第二雷射可為二極體雷射、氣態雷射、光纖雷射、固態雷射或半導體雷射的其中之一或前組合，但皆不以此為限。另外，第一雷射或第二雷射可以連續發射模式(Continuously fusing mode)或脈衝發射模式(Pulse fusing mode)發射，但不以此為限。 In detail, the beam size of the first laser or the second laser may be between 1 μm and 1 mm; the resolution of the three-dimensional object printed by the first laser column may be 100 dpi or more; the first laser or the second mine The shot may be one or a combination of a diode laser, a gaseous laser, a fiber laser, a solid state laser, or a semiconductor laser, but is not limited thereto. In addition, the first laser or the second laser may be transmitted in a continuously fusing mode or a pulse fusing mode, but is not limited thereto.
進一步的說，對應每一列印圖檔的資訊，在成形粉層402上固化出對應的立體成形區而共同地形成立體物件200時，同時地，在成形粉層402上固化出對應的該堆疊支撐區的部分邊緣(也就是指，包含於堆疊支撐區內用以形成第一側牆420及第二側牆430的部件)，在根據所有列印圖檔的資訊，列印完成所有的切層物件而形成立體物件200時，固化出對應的堆疊支撐區的部分邊緣的部份會共同地形成第一側牆420及第二側牆430，其中第一側牆420與延伸部220的外側緣相隔第一間距422且第二側牆430與本體部210鄰近延伸部220的側緣相隔第二間距432，應了解到，列印出的立體物件200與第一側牆420及第二側牆430彼此不接觸，且第一間距422與第二間距432內填滿未被固化的成形粉末，使得立體物件200在列印完成後可便於自列印平台410上取出。在本實施例中，每一第一間距422的最短直線距離可等於每一第二間距432，另外，每一第一間距422或每一第二間距432的最短直線距離也可為1μm，但不皆以此為限。 Further, corresponding to the information of each of the printed patterns, when the corresponding three-dimensional forming regions are solidified on the forming powder layer 402 to jointly form the three-dimensional object 200, simultaneously, the corresponding stack is solidified on the forming powder layer 402. Part of the edge of the support area (that is, the part included in the stack support area for forming the first side wall 420 and the second side wall 430), and all the cuts are completed according to the information of all the printed documents. When the three-dimensional object 200 is formed by layering the object, portions of the edge of the corresponding stacked support region are solidified to form the first sidewall 420 and the second spacer 430, wherein the first sidewall 420 and the outside of the extension 220 The edge is spaced apart from the first spacing 422 and the second sidewall spacer 430 is spaced apart from the side edge of the body portion 210 adjacent the extension portion 220 by a second spacing 432. It should be understood that the printed three-dimensional object 200 and the first sidewall spacer 420 and the second side are The walls 430 are not in contact with each other, and the first spacing 422 and the second spacing 432 are filled with the uncured shaped powder so that the three-dimensional object 200 can be easily removed from the printing platform 410 after printing is completed. In this embodiment, the shortest linear distance of each first spacing 422 may be equal to each second spacing 432. In addition, the shortest linear distance of each first spacing 422 or each second spacing 432 may also be 1 μm, but Not all of them are limited to this.
進一步的說，在根據包含最底層的切層物件的二維圖檔的列印圖檔進行列印時，也就是指在列印平鋪於列印 平台410上的成形粉層時，可完整地列印出列印圖檔的堆疊支撐區而形成第一底壁440，可增加支撐立體物件200的延伸部220的整體支撐構件的穩固程度及支撐強度。另一方面，在一些實施例中，如圖5所示，第一底壁440還可具有沿Z軸貫穿的穿孔442。當立體物件200列印完成後，移除支撐立體物件200的延伸部220的被燒結形成的支撐構件時，未被燒結列印的成形粉末可自穿孔442排出，以利於成形粉末的收集及再次利用。 Further, when printing according to the printing image of the two-dimensional image file containing the bottom layer of the sliced object, it means that the printing is printed on the screen. When the powder layer is formed on the platform 410, the stacked support area of the printed image file can be completely printed to form the first bottom wall 440, which can increase the stability and support of the overall supporting member of the extending portion 220 of the supporting three-dimensional object 200. strength. On the other hand, in some embodiments, as shown in FIG. 5, the first bottom wall 440 can also have perforations 442 that extend through the Z-axis. When the sintered support member that supports the extension 220 of the three-dimensional object 200 is removed after the printing of the three-dimensional object 200 is completed, the formed powder that is not sintered and printed may be discharged from the perforation 442 to facilitate the collection and formation of the formed powder. use.
另外，當列印圖檔的其中之一的立體成形區與其前一層的列印圖檔的堆疊支撐區的邊緣部分重疊時，也就是，在第一次列印出具有延伸部220的切層物件前，完整地列印包含其第前二層的切層物件的列印圖檔的堆疊支撐區而形成第二底壁450，可進一步再增加支撐立體物件200的延伸部220的支撐構件的穩固程度與支撐強度，同時，在第一次列印出具有延伸部220的切層物件前，關於此切層物件的前一層的切層物件的列印圖檔的堆疊支撐區僅燒結的列印出與立體物件200相隔第一間距422而不與立體物件200接觸的第一側牆420的部份，使得包含延伸部220的切層物件中第一個切層物件被列印出時，可完整地被承載於未被燒結成形粉末舖設形成的成形粉層402上，使得立體物件200的延伸部220在列印時可穩定的承載於支撐構件上，且立體物件200列印完成後還可順利地取下，避免立體物件200與其支撐構件因燒結而不慎黏合所產生無法順利取出成品的問題。 In addition, when the three-dimensionally formed area of one of the print patterns overlaps the edge portion of the stacked support area of the print pattern of the previous layer, that is, the slice having the extension 220 is printed for the first time. Before the object, the stacked support area of the printed image file including the sliced object of the first two layers thereof is completely printed to form the second bottom wall 450, and the support member supporting the extending portion 220 of the three-dimensional object 200 may be further added. The degree of stability and the strength of the support, and at the same time, before the first slice of the sliced object having the extension 220, the stacked support area of the printed image of the sliced object of the previous layer of the sliced object is only the sintered column When a portion of the first spacer 420 that is separated from the three-dimensional object 200 by the first spacing 422 and not in contact with the three-dimensional object 200 is printed, such that the first of the sliced objects including the extension 220 is printed It can be completely carried on the forming powder layer 402 formed by the unsintered shaped powder, so that the extending portion 220 of the three-dimensional object 200 can be stably carried on the supporting member when printing, and the three-dimensional object 200 is printed after completion. Can be removed smoothly, Free-dimensional objects 200 and its support member by sintering inadvertent adhesion problems can not be removed successfully finished produced.
應了解到，每一成形粉層402可包含有機粉末或無機粉末，也就是說，形成成形粉層402的成形粉末可為有機粉末或可為無機粉末，但不以此為限。 It should be understood that each of the shaped powder layers 402 may comprise an organic powder or an inorganic powder, that is, the shaped powder forming the shaped powder layer 402 may be an organic powder or may be an inorganic powder, but is not limited thereto.
由上述本發明實施例可知，應用本發明具有以下優點。本發明實施例的立體列印方法可根據列印圖檔的立 體成形區堆疊地列印出立體物件，且在列印立體物件的同時，根據堆疊支撐區列印出的第一側牆及第二側牆結合未被固化的成形粉層可用來支撐列印出的立體物件自本體部向外延伸的延伸部。因此，根據堆疊支撐區列印出的第一側牆及第二側牆來輔助列印出的立體物件使其順利完整的成形的立體列印方法，可提高立體列印方法在使用上及操作上的便利度。此外，由於本實施例的立體列印方法僅在成形粉層上燒結列印第一側牆及第二側牆，未被固化的成形粉層可在立體物件列印完成後，藉由移除第一側牆及第二側牆而可再次被收集利用於其他的立體物件的立體列印製程上，使得使用本實施例的立體列印方法來製作立體物件可具有較好的使用操作便利性，同時，未被固化的成形粉層還可再次利用，避免了成形粉層的材料浪費，進而可降低列印立體物件所需的生產成本。 It will be apparent from the above-described embodiments of the present invention that the application of the present invention has the following advantages. The three-dimensional printing method of the embodiment of the invention can be based on the printing of the image file The body forming zone stacks the three-dimensional object, and the first side wall and the second side wall printed according to the stacked support area are combined with the uncured forming powder layer to support the printing while printing the three-dimensional object. An extension of the three-dimensional object extending outward from the body portion. Therefore, according to the first side wall and the second side wall printed by the stacked support area, the three-dimensional object is printed to facilitate the smooth and complete forming of the three-dimensional printing method, thereby improving the use and operation of the three-dimensional printing method. Convenience. In addition, since the three-dimensional printing method of the embodiment sinters and prints the first side wall and the second side wall only on the forming powder layer, the unsolidified forming powder layer can be removed after the three-dimensional object printing is completed. The first side wall and the second side wall can be collected and used again on the three-dimensional printing process of other three-dimensional objects, so that the three-dimensional printing method of the embodiment can be used to manufacture the three-dimensional object, which can have better operation convenience. At the same time, the uncured forming powder layer can be reused, thereby avoiding material waste of the forming powder layer, thereby reducing the production cost required for printing the three-dimensional object.
雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。 Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.
100‧‧‧立體列印方法 100‧‧‧Three-dimensional printing method
110~140‧‧‧步驟 110~140‧‧‧Steps
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