US 12,303,974 B2
Three-dimensional printing
Jason C. Hower, Corvallis, OR (US); Mohammed S. Shaarawi, Corvallis, OR (US); Vladek P. Kasperchik, Corvallis, OR (US); James McKinnell, Corvallis, OR (US); and Jennifer L. Wu, Corvallis, OR (US)
Assigned to PERIDOT PRINT LLC, Palo Alto, CA (US)
Filed by PERIDOT PRINT LLC, Palo Alto, CA (US)
Filed on Apr. 5, 2024, as Appl. No. 18/628,434.
Application 18/628,434 is a continuation of application No. 17/047,513, granted, now 11,958,110, previously published as PCT/US2018/058003, filed on Oct. 29, 2018.
Prior Publication US 2024/0246147 A1, Jul. 25, 2024
Int. Cl. B22F 10/00 (2021.01); B22F 1/107 (2022.01); B22F 10/14 (2021.01); B22F 10/47 (2021.01); B33Y 10/00 (2015.01)
CPC B22F 10/14 (2021.01) [B22F 1/107 (2022.01); B22F 10/47 (2021.01); B33Y 10/00 (2014.12)] 19 Claims
OG exemplary drawing
 
1. A method for three-dimensional printing, comprising:
patterning build material layers of a particulate build material including metal particles to form an intermediate structure, the patterning including:
selectively applying a first amount of a binding agent to define: a build material support structure and a patterned intermediate part; and
selectively applying the binding agent to define a patterned breakable connection between at least a portion of the build material support structure and at least a portion of the patterned intermediate part, wherein a second amount of the binding agent in the patterned breakable connection is greater than the first amount; and
heating the intermediate structure to form i) a 3D object from the patterned intermediate part, ii) a 3D support structure from the build material support structure, and iii) a void-containing breakable connection from the patterned breakable connection at an area of the intermediate structure patterned with the binding agent in the second amount.