US 11,858,044 B2
Method and apparatus for 3D printing
Yehoshua Sheinman, RaAnana (IL)
Assigned to Stratasys Ltd., Rehovot (IL)
Appl. No. 16/300,609
Filed by Stratasys Ltd., Rehovot (IL)
PCT Filed May 29, 2017, PCT No. PCT/IL2017/050599
§ 371(c)(1), (2) Date Nov. 12, 2018,
PCT Pub. No. WO2017/208234, PCT Pub. Date Dec. 7, 2017.
Claims priority of provisional application 62/342,962, filed on May 29, 2016.
Prior Publication US 2019/0299283 A1, Oct. 3, 2019
Int. Cl. B22F 3/00 (2021.01); B33Y 30/00 (2015.01); B22F 7/00 (2006.01); B22F 10/14 (2021.01); B22F 12/80 (2021.01); B22F 12/88 (2021.01); B33Y 10/00 (2015.01); C22C 1/04 (2023.01); B22F 12/10 (2021.01); B22F 12/00 (2021.01); B22F 12/55 (2021.01); B22F 12/57 (2021.01); B22F 12/63 (2021.01); B22F 12/90 (2021.01)
CPC B22F 3/005 (2013.01) [B22F 7/002 (2013.01); B22F 10/14 (2021.01); B22F 12/80 (2021.01); B22F 12/88 (2021.01); B33Y 30/00 (2014.12); B22F 12/10 (2021.01); B22F 12/224 (2021.01); B22F 12/226 (2021.01); B22F 12/55 (2021.01); B22F 12/57 (2021.01); B22F 12/63 (2021.01); B22F 12/90 (2021.01); B22F 2998/10 (2013.01); B33Y 10/00 (2014.12); C22C 1/0416 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A system comprising:
a plurality of building trays;
a printing station configured to print a mask pattern on each of the plurality of building trays;
a powder delivery station configured to apply a dose of powder material on each of the plurality of building trays;
a powder spreading station configured to spread the dose of powder material on each of the plurality of building trays;
a process compaction station configured to compact the powder material; and
a stage configured to concurrently build a plurality of layers on each of the plurality of building trays, so as to form a three dimensional object on each of the plurality of building trays;
wherein for each layer, one of said building trays awaits at said printing station, during operation of said printing station and during motion of another one of the plurality of building trays by said stage to each of the powder delivery station, the powder spreading station and the process compaction station.