3D PRINTED OBJECT HAVING OVERCURE REGION

    公开(公告)号:US20230023773A1

    公开(公告)日:2023-01-26

    申请号:US17959295

    申请日:2022-10-03

    Abstract: A three-dimensional (3D) object comprises a plurality of layers representative of an additive manufacturing process, wherein each layer of the plurality of layers approximately has a first thickness. A first layer of the plurality of layers forms at least a portion of a first surface of the 3D object, the first layer comprising a support region and an overcure region, wherein the first layer approximately has the first thickness at the support region and a greater second thickness at the overcure region. A support mark is included at the support region, wherein the support mark is inset from a first surface profile of the 3D object defined by the overcure region.

    Mechanisms to automate removal of aligner from mold

    公开(公告)号:US11420362B2

    公开(公告)日:2022-08-23

    申请号:US16662929

    申请日:2019-10-24

    Abstract: Embodiments relate to automating removal of an untrimmed shell from a mold. In one embodiment, a shell removal device includes a body and a platform disposed within the body. The platform is configured to secure a mold that has an untrimmed shell formed over the mold. The shell removal device further includes a cover configured to secure the untrimmed shell to an upper surface of one or more sidewalls of the body and provide a seal between a lower surface of the untrimmed shell and the upper surface of the one or more sidewalls of the body. The shell removal device may include a media inlet in the body to permit pressurized media into the interior of the body to cause a pressure differential between an upper surface of the untrimmed shell and the lower surface of the untrimmed shell to cause the untrimmed shell to release from the mold.

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