US 11,904,530 B2
Vat-based additive manufacturing with dispensed material
Ben Wynne, Escondido, CA (US); Shirley Lee, Poway, CA (US); Jamie Lynn Etcheson, San Diego, CA (US); Christopher Sean Tanner, Idyllwild, CA (US); Robert Lee Mueller, San Diego, CA (US); Ivan Dejesus Chousal, Chula Vista, CA (US); and James Michael Pingel, San Diego, CA (US)
Assigned to Intrepid Automation, Inc., San Diego, CA (US)
Filed by Intrepid Automation, San Diego, CA (US)
Filed on Aug. 23, 2021, as Appl. No. 17/445,624.
Application 17/445,624 is a continuation of application No. 17/247,115, filed on Nov. 30, 2020, granted, now 11,110,650.
Claims priority of provisional application 63/086,829, filed on Oct. 2, 2020.
Prior Publication US 2022/0105677 A1, Apr. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 64/135 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B29C 64/245 (2017.01); B29C 64/209 (2017.01); C08K 7/02 (2006.01); B29K 33/04 (2006.01)
CPC B29C 64/135 (2017.08) [B29C 64/209 (2017.08); B29C 64/245 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C08K 7/02 (2013.01); B29K 2033/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of creating additive manufactured parts, the method comprising:
selectively dispensing, in a shape area according to a layer of a part to be created by additive manufacturing, a second composition onto a top surface of a first composition in a vat, wherein polymerization components for formation of the layer are kept separate from each other until the dispensing, with at least one of the polymerization components being in the second composition; and
illuminating the top surface to expose the first composition and the second composition to light having a polymerization wavelength, thereby causing polymerization of the layer of the part only in the shape area;
wherein the dispensing comprises customizing a reaction variable of the polymerization to customize reaction kinetics in different portions of the shape area,
wherein the second composition has a second viscosity that is less than a first viscosity of the first composition.