At present, a three-dimensional (3D) printing model is unloaded from the working platform manually, which hinders the automation of 3D printing. In this article, a new type of 3D printing auxiliary equipment called flexible support platform is designed to achieve automatic unloading. Unloading problems, especially its principle and influencing factors, are investigated in detail. We also study the build orientation optimization to find the optimum solution for unloading. The improved particle swarm optimization algorithm is applied to avoid falling into local optimum. Furthermore, we combine optimization for unloading with our previous work, which is in terms of support structure reduction. The unloading condition has been transformed into the calculation of added support structure owning to the process improvement, so that the optimized model with minimum support structure can be unloaded successfully. In a word, this article fulfills the need of 3D printing unloading research and achieves efficient automatic unloading.

中文翻译：

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柔性支撑平台三维打印卸载过程研究与优化

目前，三维（3D）打印模型需要人工从工作平台上卸下，阻碍了3D打印的自动化。本文设计了一种名为柔性支撑平台的新型3D打印辅助设备，实现自动下料。详细研究了卸载问题，特别是其原理和影响因素。我们还研究构建方向优化以找到卸载的最佳解决方案。采用改进的粒子群优化算法，避免陷入局部最优。此外，我们将卸载优化与我们之前的工作相结合，即减少支撑结构。由于工艺改进，卸载工况转化为增加支撑结构的计算，使得最小支撑结构的优化模型可以成功卸载。总之，本文满足了3D打印卸载研究的需要，实现了高效的自动卸载。