| CPC B22C 9/02 (2013.01) [B22C 9/10 (2013.01); B22F 10/14 (2021.01); B22F 10/30 (2021.01); B22F 12/224 (2021.01); B22F 12/67 (2021.01); B22F 12/90 (2021.01); B29C 64/165 (2017.08); B29C 64/182 (2017.08); B29C 64/209 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 80/00 (2014.12); B29C 64/227 (2017.08); B29C 64/245 (2017.08)] | 4 Claims |
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1. A 3D printer (10) which is configured to build up one or more three-dimensional components in layers in a first construction space (B1) and in a second construction space (B2) adjacent thereto, the 3D printer (10) comprising:
a first coating device (3) assigned to the first construction space (B1) and a second coating device (13) assigned to the second construction space (B2), which are movable in a first direction (H1) across the first construction space (B1) and in a third direction (H3) substantially parallel to the first direction across the second construction space (B2), respectively, in order to supply the respective construction space with construction material in a form of a uniform construction material layer of the construction material to be solidified,
a common printing device (5) which is movable in a second direction (H2) arranged at an angle to the first and third directions (H1, H3), across the first construction space (B1) and the second construction space (B2) in order to output a flowable treatment agent in a controlled manner to a partial region of a previously applied construction material layer of the first construction space (B1) and a partial region of a previously applied construction material layer of the second construction space (B2),
wherein an output region of the first coating device (3) completely spans the first construction space (B1) in a direction perpendicular to the first direction (H1),
wherein an output region of the second coating device (13) completely spans the second construction space (B2) in a direction perpendicular to the third direction (H3),
wherein a distance (S1) to be travelled by the first coating device (3) across the first construction space (B1) along the first direction (H1) is greater than or equal to a single distance (S21) to be travelled by the common printing device (5) across the first construction space (B1) along the second direction (H2), and
wherein a distance (S3) to be travelled by the second coating device (13) across the second construction space (B2) along the third direction (H3) is greater than or equal to a single distance (S22) to be travelled by the common printing device (5) across the second construction space (B2) along the second direction (H2), and
further comprising a control device (C) configured to control the first coating device (3), the second coating device (13) and the common printing device (5) in such a way that a travel of the first coating device (3) in the first direction (H1) across the first construction space (B1) and a travel of the second coating device (13) in the third direction (H3) across the second construction space (B2) overlap in time with at least one of a travel of the common printing device (5) in the second direction (H2) across the first construction space (B1) and a travel of the common printing device (5) in the second direction (H2) across the second construction space (B2), and/or that a supply of construction material to the first construction space (B1) by the first coating device (3) and a supply of construction material to the second construction space (B2) by the second coating device (13) overlap in time with the controlled output of flowable treatment agent to a previously applied construction material layer of at least one of the first construction space (B1) and the second construction space (B2),
wherein the control device is configured to control the first coating device (3), the second coating device (13), and the common printing device (5) so that a degree of the overlap in time of printing and coating compared to only coating in the first construction space (B1) and the second construction space (B2) is greater than or equal to 20%.
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