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。

公开(公告)号：US08776391B1

公开(公告)日：2014-07-15

申请号：US11781809

申请日：2007-07-23

申请人： Srinivas Kaza ,  Shiva P Sambu ,  Kamesh Tata ,  Michael J Doung ,  Long Phan

发明人： Srinivas Kaza ,  Shiva P Sambu ,  Kamesh Tata ,  Michael J Doung ,  Long Phan

IPC分类号： F26B5/08 ,  F26B17/30 ,  F26B3/34

CPC分类号： A61C13/00 ,  F26B5/08

摘要： A system and method for post-processing of polymeric items having a liquid component and a predetermined heat deflection temperature is provided. The system includes a washing station to spray water at elevated temperature and pressure on the items while maintaining the temperature of the item below the heat deflection temperature. Then using a water distillation system to separate the water from the water mixed with the liquid polymer component by evaporating the water using heating coils with surface that is not conducive to adhesion of the liquid polymer component and then condense the water vapor into liquid water. The system may further include a spin station to separate the liquid polymer component by spinning the item. The system may further include one or more processing stations to rinse the item, dry the item, cure the item, remove the item from a tray to which the item may be attached and clean trays after removing the item. A conveyor system may be used to automate the post-processing of the items.

摘要翻译： 提供了具有液体成分和预定的热变形温度的聚合物的后处理系统和方法。 该系统包括一个清洗站，用于在物品的高温和高压下喷洒水，同时将物品的温度保持在热变形温度以下。 然后使用水蒸馏系统通过使用不利于液体聚合物组分粘附的表面的加热线圈蒸发水，然后将水与液体聚合物组分混合，从而将水与水混合，然后将水蒸气冷凝成液态水。 该系统可以进一步包括旋转台，以通过旋转物品来分离液体聚合物组分。 该系统还可以包括一个或多个处理站以冲洗物品，干燥物品，固化物品，从物品可附着的托盘中取出物品，并且在取出物品之后清洁纸盘。 输送机系统可以用于使物品的后处理自动化。