NDLI: An Additive Manufacturing Direct Slicing Algorithm Based on a STEP Model

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An Additive Manufacturing Direct Slicing Algorithm Based on a STEP Model

Content Provider	MDPI
Author	Han, Xingguo Zhan, Zhuangchao Song, Xiaohui Cui, Lixiu
Copyright Year	2022
Description	The Standard Template Library (STL) file is the most common data format for the description of an additive manufacturing (AM) geometric model, but it has some disadvantages, such as large errors of the geometric model description, the easy loss of topology information, data duplication, large file sizes, and so on. Aiming at these problems, a direct slicing algorithm based on a Standard for the Exchange of Product Model Data (STEP) model was proposed. For the parts composed of basic types of surfaces such as boundary curves, spherical surfaces and cylindrical surfaces, the traditional geometric method was used to calculate the intersection. For the parts with complex surfaces, the three-dimensional models were described based on Non-Uniform Rational B-Spline (NURBS) surfaces. The NURBS surfaces were layered using a discrete tracking algorithm, the tracking starting point was determined, the intersection line between the tangent plane and each NURBS sub-surface was obtained, and the closed layer contour was formed. Finally, the slicing simulations and printing experiments of solid parts were carried out using the direct slicing algorithm based on the STEP model. It was shown that the dimensional accuracy and surface quality of the printed parts from this algorithm had been significantly improved.
Starting Page	1582
e-ISSN	20799292
DOI	10.3390/electronics11101582
Journal	Electronics
Issue Number	10
Volume Number	11
Language	English
Publisher	MDPI
Publisher Date	2022-05-16
Access Restriction	Open
Subject Keyword	Electronics Manufacturing Engineering Additive Manufacturing Direct Slicing Complex Surface Nurbs Geometric Method
Content Type	Text
Resource Type	Article

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