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公开(公告)号：US12086936B2
公开(公告)日：2024-09-10
申请号：US17604471
申请日：2020-04-24
Applicant: DENTSPLY SIRONA Inc. , SIRONA DENTAL SYSTEMS GMBH
Inventor： Christian Stahl , Daniel Weiss
CPC classification number: G06T17/20 , A61C1/082 , B29C64/393 , B33Y50/02 , B29L2031/7546 , B33Y80/00 , G06T2210/36
Abstract: The present invention relates to a method of determining layer thicknesses of a three-dimensional model for generation with an additive manufacturing apparatus. The method includes: a step of determining the layer thicknesses according to an adaptive slicing algorithm in which the thickness of a layer is calculated through a relation based on the inclination of the normal vectors of the surface elements of the 3D model partly enclose the layer from a horizontal direction (x;y).
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公开(公告)号：US11780157B2
公开(公告)日：2023-10-10
申请号：US17280292
申请日：2019-10-01
Applicant: DENTSPLY SIRONA inc.
Inventor： Thomas Michalica , Thomas Hasenzahl , Christian Schmidt , Christian Stahl
IPC: B29C64/124 , B33Y10/00 , B33Y30/00 , B29C64/264 , B29C64/232 , B29C64/245 , B29C64/255 , B29C64/295 , G01F22/02
CPC classification number: B29C64/124 , B29C64/232 , B29C64/245 , B29C64/255 , B29C64/264 , B29C64/295 , B33Y10/00 , B33Y30/00 , G01F22/02
Abstract: Device for a system for layer-by-layer construction of a body (K) from a substance (S) which can be hardened by radiation, comprising a vat having a vat base for receiving the substance (S) which can be hardened by radiation, comprising a building platform which is arranged above the vat base and which is height-adjustable in relation to the vat base and comprising a sensor cooperating with the vat base, wherein the vat base is configured to be at least partially flexible, wherein a chamber is provided wherein the chamber is delimited by an underside of the vat base, wherein the sensor is adapted to detect a volume change of the chamber and to provide a sensor signal from which a sign of the volume change can be determined.
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