Extended block based infill generation
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In additive manufacturing, fused deposition modeling (FDM) is widely used for its simplicity and ease of use. However, it exhibits longer printing times compared with other types of three-dimensional printers. One of the causes of the slow printing speed is infill, which is uniform structure that uses excessive material. The recently studied block-based infill generation method effectively reduced material usage and printing time with adaptive structure through the merging and splitting of unit blocks. Methods to increase the effectiveness of the block-based infill generation method have been sought in this paper. First, the directionality of the block’s surface was increased by substituting the previously used cubic unit block with octahedron and tetrahedron unit blocks to generate infill with more flexibility. Second, a quantitative splitting algorithm was proposed to solve the determination of order and direction of infill generation, which is an NP-hard problem. In most cases, the extended block-based infill generated with these two modifications showed reduced material usage and faster printing time compared with the cubic block-based infill generated.
KeywordsInfill Printing time Fused deposition modeling Additive manufacturing
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The Institute of Engineering Research at Seoul National University provided research facilities for this work.
- 1.Lee J, Lee K (2016) Block-based inner support structure generation algorithm for 3D printing using fused deposition modeling. The International Journal of Advanced Manufacturing Technology, 1–13Google Scholar
- 7.Huang SH, Liu P, Mokasdar A, Hou L (2013) Additive manufacturing and its societal impact: a literature review. The International Journal of Advanced Manufacturing TechnologyGoogle Scholar
- 9.Schmidt R, Umetani N (2014) Branching support structures for 3D printing. ACM SIGGRAPH Talks’14Google Scholar
- 12.Luo L, Baran I, Rusinkiewicz S, Matusik W (2012) Chopper: partitioning models into 3D-printable parts. ACM Trans Graph 31(6):129Google Scholar
- 14.Wang W, Wang TY, Yang Z, Liu L, Tong X, Tong W, Deng J, Chen F, Liu X (2013) Cost-effective printing of 3D objects with skinframe structures. ACM Trans Graph 32(6):177Google Scholar
- 16.Lu L, Shaft A, Zhao H, Wei Y, Fan QN, Chen X, Savoye Y, Tu CH, Daniel CO, Chen BQ (2014) Build-to-last: strength to weight 3D printed objects. ACM Trans Graph 33(4):97Google Scholar
- 22.Xie Y, Chen X (2017) Support-free interior carving for 3D printing. Visual InformaticsGoogle Scholar
- 24.3DWOX DP200 (2016) FDM 3D Printer. http://3dprinter.sindoh.com/
- 25.(2015) ASTM D695-15 Standard Test Method for Compressive Properties of Rigid Plastics. ASTM International, West Conshohocken, PA. doi: 10.1520/D0695-15
- 26.Wu J, Aage N, Westermann r, Sigmund O (2017) Infill Optimization for Additive Manufacturing–Approaching Bone-like Porous Structures. IEEE Transactions on Visualization and Computer GraphicsGoogle Scholar