vowstar@gmail.com Huang Rui gumyr/build123d build123d https://build123d.readthedocs.io/ https://github.com/gumyr/build123d/issues build123d is a Python-based parametric CAD modeling framework built on top of the Open CASCADE geometry kernel. It provides an intuitive API for creating 3D models using builder patterns, algebraic operations, and selectors. The framework supports 1D (curves/edges), 2D (sketches/faces), and 3D (parts/solids) modeling with features like extrusion, lofting, sweeping, filleting, and boolean operations. Models can be exported to STEP, STL, 3MF, SVG, DXF, and other formats. build123d是一个基于Open CASCADE几何内核构建的Python参数化CAD建模框架。 它提供了直观的API，使用构建器模式、代数运算和选择器来创建3D模型。该框架 支持1D（曲线/边）、2D（草图/面）和3D（零件/实体）建模，具有拉伸、放样、 扫描、倒角和布尔运算等功能。模型可以导出为STEP、STL、3MF、SVG、DXF等格式。