EP 4110591 A1 20230104 - METHOD AND DEVICE FOR DETERMINING A DISTANCE IN AN ADDITIVE MANUFACTURING DEVICE
Title (en)
METHOD AND DEVICE FOR DETERMINING A DISTANCE IN AN ADDITIVE MANUFACTURING DEVICE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ABSTANDERMITTLUNG IN EINER ADDITIVEN HERSTELLVORRICHTUNG
Title (fr)
PROCÉDÉ ET DISPOSITIF DE DÉTERMINATION D'UNE DISTANCE DANS UN DISPOSITIF DE FABRICATION ADDITIVE
Publication
Application
Priority
- DE 102020202353 A 20200224
- EP 2021053705 W 20210216
Abstract (en)
[origin: WO2021170448A1] The invention relates to a method for determining a distance in an additive manufacturing device (1), comprising at least the following steps: outputting (S1) a number of, preferably a plurality of, directed, preferably bundled, beams, in particular light beams (32, 32a, 32b), by means of a number of radiation sources (30, 30a, 30b); detecting (S2) at least one of the directed beams from a first radiation source (30, 30a, 30b) by means of a first detector (33, 33a, 33b) and generating (S3) a signal according to the at least one beam (32, 32a, 32b) impinging on the at least one detector (33, 33a, 33b) wherein a coating element (16a) is arranged spatially between the first radiation source (30, 30a, 30b) and the first detector (33, 33a, 33b); and determining (S4) a distance (d) between a boundary (18) of the coating element (16a) and a surface (19) of a construction base (11, 12) and/or of an object placed on the construction base (11, 12) by means of an evaluation unit (34) on the basis of the signal generated by the detector.
IPC 8 full level
B29C 64/393 (2017.01); B29C 64/153 (2017.01); B29C 64/214 (2017.01); B29C 64/218 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01)
CPC (source: EP US)
B29C 64/153 (2017.07 - EP US); B29C 64/214 (2017.07 - EP US); B29C 64/218 (2017.07 - EP US); B29C 64/393 (2017.07 - EP US); B33Y 10/00 (2014.12 - EP); B33Y 30/00 (2014.12 - EP); B33Y 50/02 (2014.12 - EP); B33Y 10/00 (2014.12 - US); B33Y 30/00 (2014.12 - US); B33Y 50/02 (2014.12 - US); Y02P 10/25 (2015.11 - EP)
Citation (search report)
See references of WO 2021170448A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102020202353 A1 20210826; EP 4110591 A1 20230104; US 2023094578 A1 20230330; WO 2021170448 A1 20210902
DOCDB simple family (application)
DE 102020202353 A 20200224; EP 2021053705 W 20210216; EP 21706230 A 20210216; US 202117798168 A 20210216