FDM五轴3D打印支撑消减算法研究

Study on Elimination-reduction Algorithm of Support in Five-axis 3D Printing

利用传统3D打印技术制造复杂模型时辅助支撑结构的生成与去除需要浪费大量时间与材料,为了解决这个问题,提出了一种基于模型分解的五轴3D打印算法,使得空间模型能够实现辅助支撑消减的打印制造。该算法先利用"层切法"对一个空间模型进行分解,并在分解过程中维护一个各个节点与各个分解子模型相对应的多叉分解树。然后再依据多叉分解树的结构与相应树节点的信息,规划出五轴3D打印设备的模型打印路径。在自研五轴增材制造系统的帮助下,该算法能进行一般模型的分解与辅助支撑消减的模型打印。

Traditional 3D printing technology wastes a lot of time and materials in the generating and removing of the auxiliary support structure for building complex models.To solve this problem,a five axis 3D printing algorithm based on model decomposition is proposed,which makes it possible to print models with supported structure reduction.The algorithm can firstly decompose a model with layer-slicing method and maintain a multiple decomposition tree with each node saving a relevant model information.According to the structure of the multiple decomposition tree and its corresponding information,the printing path of the five axis device can be planned.With the help of five axis manufacturing system,the algorithm can decompose some normal models to print with the supported structure reduction.