Strong 3D Printing by TPMS Injection

Xin Yan, Cong Rao, Lin Lu, Andrei Sharf, Haisen Zhao, Baoquan Chen

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

3D printed objects are rapidly becoming prevalent in science, technology and daily life. An important question is how to obtain strong and durable 3D models using standard printing techniques. This question is often translated to computing smartly designed interior structures that provide strong support and yield resistant 3D models. In this paper we suggest a combination between 3D printing and material injection to achieve strong 3D printed objects. We utilize triply periodic minimal surfaces (TPMS) to define novel interior support structures. TPMS are closed form and can be computed in a simple and straightforward manner. Since TPMS are smooth and connected, we utilize them to define channels that adequately distribute injected materials in the shape interior. To account for weak regions, TPMS channels are locally optimized according to the shape stress field. After the object is printed, we simply inject the TPMS channels with materials that solidify and yield a strong inner structure that supports the shape. Our method allows injecting a wide range of materials in an object interior in a fast and easy manner. Results demonstrate the efficiency of strong printing by combining 3D printing and injection together.

Original languageEnglish
Article number8703138
Pages (from-to)3037-3050
Number of pages14
JournalIEEE Transactions on Visualization and Computer Graphics
Volume26
Issue number10
DOIs
StatePublished - 1 Oct 2020

Keywords

  • 3D printing
  • injection
  • inner structures
  • minimal surfaces

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