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However, there remains a significant challenge in the geometric modeling of these lattice structures, especially for heterogeneous strut-based lattice structures. Current methods show limitations in accuracy or geometric control. This paper presents the Virtual-Trim, a novel method for the geometric modeling of heterogeneous strut-based lattice structures that is both efficient and robust. Virtual-Trim begins with user-defined wireframe models and geometric information to create STL (STereoLithography) models ready for AM, eliminating the need for labor-intensive Boolean operations. The fundamental principles and steps involved in Virtual-Trim are extensively described within. Additionally, various models using Virtual-Trim method are designed, and the performance of Virtual-Trim in terms of generation time and model size is analyzed. The successful printing of these models attests to the method\u2019s excellent manufacturability.<\/jats:p>","DOI":"10.1093\/jcde\/qwae034","type":"journal-article","created":{"date-parts":[[2024,4,9]],"date-time":"2024-04-09T20:16:46Z","timestamp":1712693806000},"page":"345-364","source":"Crossref","is-referenced-by-count":1,"title":["Virtual-Trim: A parametric geometric modeling method for heterogeneous strut-based lattice structures"],"prefix":"10.1093","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-6239-8499","authenticated-orcid":false,"given":"Zhuangyu","family":"Li","sequence":"first","affiliation":[{"name":"School of Mechanical Engineering and Automation, Beihang University , Beijing 100191 , China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenlei","family":"Xiao","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering and Automation, Beihang University , Beijing 100191 , 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