Simultaneous multiple layer curing in stereolithography
    1.
    发明授权
    Simultaneous multiple layer curing in stereolithography 失效
    同时多层固化立体光刻

    公开(公告)号:US06366825B1

    公开(公告)日:2002-04-02

    申请号:US09289842

    申请日:1999-04-12

    IPC分类号: G06F1900

    摘要: A method and apparatus for making high resolution objects by stereolithography utilizing low resolution materials which are limited by their inability to form unsupported structures of desired thinness and/or their inability to form coatings of desired thinness. Data manipulation techniques, based on layer comparisons, are used to control exposure in order to delay solidification of the material on at least portions of at least some cross-sections until higher layers of material are deposited so as to allow down-facing features of the object to be located at a depth in the building material which is equal to or exceeds a minimum cure depth that can effectively be used for solidifying these features. Similar data manipulations are used to ensure minimum reliable coating thicknesses exist, above previously solidified material, before attempting solidification of a next layer. In addition, horizontal comparison techniques are used to provide enhanced cross-sectional data for use in forming the object. Further, several techniques for automatically performing Z-error correction through the manipulation of a three-dimensional object representation are described.

    摘要翻译: 使用低分辨率材料通过立体光刻技术制造高分辨率物体的方法和装置,其受到不能形成所需薄度的无支撑结构和/或不能形成所需薄度的涂层的限制。 基于层比较的数据处理技术被用于控制曝光,以便在至少一些横截面的至少部分上延迟材料的固化,直到沉积更高层的材料,以便允许下层的特征 物体位于建筑材料的深度上,其等于或超过可以有效地用于固化这些特征的最小固化深度。 在尝试凝固下一层之前,使用类似的数据操作来确保存在最小可靠的涂层厚度,以上固化的材料。 此外,使用水平比较技术来提供用于形成物体的增强的横截面数据。 此外,描述了通过操纵三维对象表示来自动执行Z误差校正的几种技术。

    Method and apparatus for controlling the drop volume in a selective deposition modeling environment
    7.
    发明授权
    Method and apparatus for controlling the drop volume in a selective deposition modeling environment 有权
    用于在选择性沉积建模环境中控制液滴体积的方法和装置

    公开(公告)号:US06347257B1

    公开(公告)日:2002-02-12

    申请号:US09258019

    申请日:1999-02-25

    IPC分类号: G06F1900

    摘要: A method, system and apparatus for forming a three-dimensional object on a layer-by-layer basis involves forming a portion of the three-dimensional object using selective deposition modeling (SDM). SDM involves using at least one orifice, such as a jet, which dispenses a droplet of a flowable material that solidifies upon being dispensed. A drop volume capability of each orifice is adjusted until substantially all orifices have a uniform drop volume capability and all dispensed droplets of the flowable material have a uniform volume.

    摘要翻译: 用于在逐层的基础上形成三维物体的方法,系统和装置包括使用选择性沉积建模(SDM)形成三维物体的一部分。 SDM包括使用至少一个孔口,例如喷射器,其分配可分配的固体的可流动材料的液滴。 调整每个孔口的液滴体积能力,直到基本上所有孔口具有均匀的液滴体积能力,并且可流动材料的所有分配液滴具有均匀的体积。

    Apparatus for electro-chemical deposition with thermal anneal chamber
    10.
    发明授权
    Apparatus for electro-chemical deposition with thermal anneal chamber 有权
    在选择性沉积建模系统中打印光栅线的方法和装置

    公开(公告)号:US6136252A

    公开(公告)日:2000-10-24

    申请号:US257853

    申请日:1999-02-25

    IPC分类号: B29C41/36 B29C67/00 B29C41/02

    摘要: Techniques for printing raster lines in a selective deposition modeling (SDM) system. Raster lines may be printed using different numbers of jets in each group in different passes. Moreover, full and partial head randomization is available. Selected raster lines are printed in one direction, although the print head prints in two directions. Furthermore, raster lines printing may be interlaced, and deposition order may be changed between layers.

    摘要翻译: 在选择性沉积建模(SDM)系统中打印光栅线的技术。 可以在不同的通行证中,在每组中使用不同数量的射流打印光栅线。 此外,全部和部分头随机化是可用的。 所选的光栅线是沿一个方向打印的,尽管打印头在两个方向上打印。 此外,光栅线打印可以是交错的,并且可以在层之间改变沉积顺序。