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Today, 3D computer modelling and 3D printing are closely interconnected. The STL file format is the industry standard for describing the surface geometry of 3D objects intended for printing. While 3D objects can also be represented in a voxel-based format, converting this volumetric data to STL presents several challenges, primarily related to the quality of the triangulation and the resulting high mesh complexity. The aim of this work is to diminish imperfections in the input file for 3D printing by developing a novel approach for converting voxel-based models to STL files. For this purpose, a MATLAB script was developed and applied to a multi-material test object. The STL files generated by both the new and the existing conversion methods were printed and subjectively compared. The new MATLAB-demonstrated approach for obtaining STL files from voxel-based models proved to significantly improve the quality of both the final STL mesh and the resulting multi-material printed object.

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Improved STL Export for 3D Printing of Physical Phantoms

  • 会议论文

  • 发表日期：

    2026年

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  • Ivan Buliev,
  • Nikolay Dukov,
  • Zhivko Bliznakov,
  • Kristina Bliznakova

摘要

Today, 3D computer modelling and 3D printing are closely interconnected. The STL file format is the industry standard for describing the surface geometry of 3D objects intended for printing. While 3D objects can also be represented in a voxel-based format, converting this volumetric data to STL presents several challenges, primarily related to the quality of the triangulation and the resulting high mesh complexity. The aim of this work is to diminish imperfections in the input file for 3D printing by developing a novel approach for converting voxel-based models to STL files. For this purpose, a MATLAB script was developed and applied to a multi-material test object. The STL files generated by both the new and the existing conversion methods were printed and subjectively compared. The new MATLAB-demonstrated approach for obtaining STL files from voxel-based models proved to significantly improve the quality of both the final STL mesh and the resulting multi-material printed object.