US 11,673,315 B2
Method for formfree printing a three-dimensional object in layers
Hans Peter Wolf, Liederbach (DE); Michael Backer, Mainz (DE); Stephan Baumann, Rhens (DE); and Florian Bautz, Forstern (DE)
Assigned to DOW SILICONES CORPORATION, Midland, MI (US); and INNOVATIQ GMBH + CO KG, Feldkirchen (DE)
Filed by Dow Silicones Corporation, Midland, MI (US); and InnovatiQ GmbH + Co KG, Feldkirchen (DE)
Filed on Jul. 1, 2022, as Appl. No. 17/856,306.
Application 17/856,306 is a division of application No. 16/349,099, granted, now 11,433,595, previously published as PCT/EP2017/078895, filed on Nov. 10, 2017.
Claims priority of application No. 16198523 (EP), filed on Nov. 11, 2016.
Prior Publication US 2022/0347915 A1, Nov. 3, 2022
Int. Cl. B29C 64/106 (2017.01); B29C 64/264 (2017.01); B29C 64/295 (2017.01); B29C 64/209 (2017.01); C08L 83/04 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); C08G 77/20 (2006.01); C08G 77/12 (2006.01)
CPC B29C 64/106 (2017.08) [B29C 64/209 (2017.08); B29C 64/264 (2017.08); B29C 64/295 (2017.08); C08L 83/04 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); C08G 77/12 (2013.01); C08G 77/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of formfree printing a three-dimensional object in layers with at least one printing material, the method comprising:
outputting printing material in at least one printing material string in string-shape via at least one printing head;
receiving, via a printing platen, at least one printing material string output by the at least one printing head;
providing a rod-shaped heating device movably arranged over the printing platen, wherein the rod-shaped heating device has a length of the same or higher than the width of the printing platen;
controlling the rod-shaped heating device, via a heat controller, to emit a heat irradiation directed to the printing platen to heat the at least one printing material string to a reaction temperature to trigger a chemical reaction of the at least one printing material of the at least one printing material string;
providing at least one motor coupled to the rod-shaped heating device to move it over the printing platen; and
controlling the at least one motor, via a motor controller, to move the rod-shaped heating device over the printing platen to harden the at least one printing material string printed on the printing platen.