US 12,285,917 B2
Method and system for controlling a cooling system in three-dimensional printing
Barak Glassman, Nes Ziona (IL)
Assigned to Stratasys Ltd., Rehovot (IL)
Appl. No. 17/419,808
Filed by Stratasys Ltd., Rehovot (IL)
PCT Filed Dec. 30, 2019, PCT No. PCT/IL2019/051435
§ 371(c)(1), (2) Date Jun. 30, 2021,
PCT Pub. No. WO2020/141515, PCT Pub. Date Jul. 9, 2020.
Claims priority of provisional application 62/786,569, filed on Dec. 31, 2018.
Prior Publication US 2022/0080671 A1, Mar. 17, 2022
Int. Cl. B29C 64/393 (2017.01); B22F 10/80 (2021.01); B22F 10/85 (2021.01); B22F 12/20 (2021.01); B22F 12/53 (2021.01); B22F 12/55 (2021.01); B29C 64/188 (2017.01); B29C 64/209 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/20 (2020.01); B33Y 50/02 (2015.01); B22F 10/14 (2021.01); B22F 10/18 (2021.01); B22F 10/22 (2021.01); B22F 10/40 (2021.01); B29C 64/112 (2017.01)
CPC B29C 64/393 (2017.08) [B22F 10/85 (2021.01); B22F 12/20 (2021.01); B22F 12/53 (2021.01); B22F 12/55 (2021.01); B29C 64/188 (2017.08); B29C 64/209 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/20 (2020.01); B33Y 50/02 (2014.12); B22F 10/14 (2021.01); B22F 10/18 (2021.01); B22F 10/22 (2021.01); B22F 10/40 (2021.01); B22F 10/80 (2021.01); B29C 64/112 (2017.08)] 16 Claims
OG exemplary drawing
 
1. A method of additive manufacturing of a three-dimensional object, the method comprising:
dispensing from an array of nozzles an amount of building material formulation to form a layer in a configured pattern corresponding to a shape of a slice of the object;
hardening said layer;
based on said amount and a geometrical characteristic of said slice, calculating a thermal mass of said layer; and
in a closed loop control, activating, deactivating, or setting a power of a cooling system for cooling said layer, responsively to said calculated thermal mass.