An Origami Crease Pattern Generating Methodology for “Origami 3D Printer”
An Origami Crease Pattern Generating Methodology for “Origami 3D Printer”
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“折纸3D打印机”的折纸折痕图案生成方法
DOI：
10.1115/detc2019-97715
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Shinoda Junichi
中科院分区：
文献类型：
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作者：
[2] Yang Yang;Hagiwara Ichiro;Diago Luis;Shinoda Junichi
增材3D打印机（以下称为Add-3D）创建具有逐层添加在一起的材料的3D对象。在打印物体之前，一些专业的过程是必不可少的，例如通过计算机辅助设计（CAD）或3D扫描仪创建3D可打印模型，以及STL数据修改，这对于普通家庭来说是困难的。正如我们所知，折纸最初是一种古老的艺术，将一张扁平的纸折叠成3D形状，甚至可以由孩子们玩。因此，我们的目标是开发一种Origami 3D打印机（以下称为Ori-3D），可供普通家庭使用，具有工作量大且没有模型尺寸限制的特点。在Ori-3D中，物体由人手或Origami机器人使用从3D数据（从照片或CAD获得）生成的2D图案构建。Ori-3D包括以下步骤：1）利用逆向工程系统中的分割技术，将物体表面分割成尽可能大的可展曲面; 2)每个可展面被开发成带有山谷线和粘合部分的2D图案。3)通过树结构方法优化2D折痕图案，以便于折纸机器人折叠。4)使用Origami机器人，可以很容易地从改进的2D折痕图案中构建对象。本文重点讨论了步骤1 - 3：生成二维折痕图案。
The additive 3D printer (hereafter called Add-3D) creates a 3D object with materials being added together layer by layer. Before printing an object, some professional processes are indispensable, such as creating the 3D printable models by computer-aided design (CAD), or 3D scanner, and STL data modification, which are difficult for normal families. As we know, primordially, origami is the ancient art of folding a flat-piece of paper into a 3D shape, that even can be played by kids. So we aim to develop an Origami 3D printer (hereafter called Ori-3D) that can be used by ordinary families with the features of effort and no size limit of model. In Ori-3D, the object is constructed by human hands or by an Origami robot using 2D patterns generated from 3D data (obtained from photos or CAD). Ori-3D includes the following steps: 1) the surface of an object is segmented to several developable surfaces as large as possible using segmentation technique which is used in reverse engineering system. 2) Each developable surface is developed to 2D pattern with mountain & valley lines and glue parts. 3) The 2D crease pattern is optimized by a tree structure method to be easily folded by an Origami Robot. 4) With Origami robot, the object is easily constructed from the improved 2D crease pattern. This paper focuses on discuss the steps 1∼ 3: generation of the 2D crease pattern.