US 12,128,631 B2
Method of analyzing and utilizing surface topology for targeted local thermal management in additive manufacturing systems
Jason Robert Nixon, Minneapolis, MN (US); Clint Newell, Chandler, AZ (US); and Timothy Diekmann, Maplewood, MN (US)
Assigned to Stratasys, Inc., Eden Prairie, MN (US)
Filed by Stratasys, Inc., Eden Prairie, MN (US)
Filed on Nov. 9, 2021, as Appl. No. 17/522,475.
Application 17/522,475 is a continuation in part of application No. 16/544,414, filed on Aug. 19, 2019, granted, now 11,192,298.
Claims priority of provisional application 62/765,009, filed on Aug. 17, 2018.
Prior Publication US 2022/0063204 A1, Mar. 3, 2022
Int. Cl. B29C 64/393 (2017.01); B29C 64/209 (2017.01); B29C 64/268 (2017.01); B29C 64/314 (2017.01); B29C 64/336 (2017.01); B33Y 40/10 (2020.01); B33Y 50/02 (2015.01); B29C 64/118 (2017.01); B33Y 10/00 (2015.01)
CPC B29C 64/393 (2017.08) [B29C 64/209 (2017.08); B29C 64/268 (2017.08); B29C 64/314 (2017.08); B29C 64/336 (2017.08); B33Y 40/10 (2020.01); B33Y 50/02 (2014.12); B29C 64/118 (2017.08); B33Y 10/00 (2014.12)] 15 Claims
OG exemplary drawing
 
1. A method for 3D printing a part with an additive manufacturing system, the method comprising:
printing a first portion of a part in a layerwise manner;
analyzing a topology of the first portion of the part utilizing a combination of feedback control comprising utilizing a sensed actual surface topology of the part being printed.-and feed forward control comprising utilizing an anticipated surface topology based upon a 3D model;
determining a tool path for printing a second portion of the part on a surface of the first portion of the part;
pre-heating the first portion of the part along the tool path as a function of the topological analysis of the first portion of the part; and
printing the second portion of the part along the tool path.