公开(公告)号：US5596504A

公开(公告)日：1997-01-21

申请号：US419711

申请日：1995-04-10

申请人： Kamesh Tata ,  Amit Bagchi ,  Nadim M. Aziz

发明人： Kamesh Tata ,  Amit Bagchi ,  Nadim M. Aziz

IPC分类号： G06T17/00 ,  G06F19/00 ,  G06F17/50 ,  G06T17/10

CPC分类号： G06T17/00

摘要： A device for automating operation of a stereolithography apparatus uses an STL file as an input and includes a programmable computer, a facet processor that sorts the facets of the STL file according to a predetermined slice axis. The facet processor also groups the sorted facets according to those having common minimum vertex values with respect to the slice axis. The facet processor also subgroups the grouped facet file according to facets having common maximum vertex values with respect to the slice axis. A key characteristic identifier identifies key characteristics of the STL file. A thickness calculator determines the thickness of each layer of the model according to a geometrical error of preselected magnitude. A slicer calculates the intersection of each sliced plane by the calculated thickness. A directional ordering device insures uniformity with the direction of each other contour that defines the intersection. A model generator uses the layer thickness and intersection information to generate a portion of a model. An interface device controls the operation of the machine based on the model that is generated.

摘要翻译： 用于自动化立体光刻设备的操作的设备使用STL文件作为输入，并且包括可编程计算机，根据预定切片轴对STL文件的面分类的小平面处理器。 小平面处理器还根据具有相对于切片轴的共同最小顶点值的那些分组排序面。 小平面处理器还根据具有相对于切片轴的共同最大顶点值的小平面对分组的小平面文件进行分组。 关键特征标识符识别STL文件的关键特性。 厚度计算器根据预选大小的几何误差来确定模型的各层的厚度。 切片机根据计算的厚度计算每个切片平面的交点。 方向订购装置确保了与定义交点的每个其他轮廓的方向的均匀性。 模型生成器使用层厚度和交点信息来生成模型的一部分。 接口设备基于生成的模型来控制机器的操作。