US 12,030,238 B2
3D printing to obtain a predefined surface quality
Guy Menchik, RaAnana (IL); Yaniv Shitrit, Ashkelon (IL); Boris Belocon, Rehovot (IL); Yehoshua Sheinman, RaAnana (IL); and Daniel Dikovsky, Ariel (IL)
Assigned to Stratasys Ltd., Rehovot (IL)
Appl. No. 16/957,819
Filed by Stratasys Ltd., Rehovot (IL)
PCT Filed Dec. 17, 2018, PCT No. PCT/IL2018/051364
§ 371(c)(1), (2) Date Jun. 25, 2020,
PCT Pub. No. WO2019/130294, PCT Pub. Date Jul. 4, 2019.
Claims priority of provisional application 62/612,454, filed on Dec. 31, 2017.
Prior Publication US 2021/0060850 A1, Mar. 4, 2021
Int. Cl. B29C 64/112 (2017.01); B29C 64/245 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); B29L 31/34 (2006.01)
CPC B29C 64/112 (2017.08) [B29C 64/245 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); B29K 2995/0025 (2013.01); B29L 2031/34 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of 3D printing, the method comprising:
lining a tray of a 3D printing system with a base surface;
following said lining of said tray, placing electronic components at predetermined locations on said base surface,
printing layers of an object on said base surface in reversed order to build said object in a down-facing orientation, so that a surface property selected from the group consisting of smoothness, roughness, or texture of said base surface is imparted during said printing to a layer printed onto said base surface to form a top surface of said 3D object, wherein said printing comprises printing layers around and over said electronic components, such that said electronic components are integrated in said 3D object, and a surface surrounding said electronic components has said predetermined surface quality and
removing said object from said base surface to reveal said printed layer forming said top surface having taken said surface property from said base surface;
wherein said lining is executed before printing and said removing is executed after printing.