US 11,992,999 B2
Coextruded, multilayer and multicomponent 3D printing inputs
Richard Guillemette, West Warwick, RI (US); and Robert Peters, West Warwick, RI (US)
Assigned to Guill Tool & Engineering Co., Inc., West Warwick, RI (US)
Filed by Guill Tool & Engineering Co., Inc., West Warwick, RI (US)
Filed on Jul. 22, 2020, as Appl. No. 16/935,517.
Application 16/935,517 is a continuation of application No. 15/005,383, filed on Jan. 25, 2016, granted, now 10,730,232.
Application 15/005,383 is a continuation of application No. PCT/US2014/066252, filed on Nov. 19, 2014.
Claims priority of provisional application 61/971,452, filed on Mar. 27, 2014.
Claims priority of provisional application 61/906,218, filed on Nov. 19, 2013.
Prior Publication US 2020/0346398 A1, Nov. 5, 2020
Int. Cl. B29C 64/118 (2017.01); B29C 64/106 (2017.01); B29C 69/00 (2006.01); B33Y 70/00 (2020.01); C08J 5/12 (2006.01); B29K 101/12 (2006.01); B33Y 10/00 (2015.01)
CPC B29C 64/118 (2017.08) [B29C 64/106 (2017.08); B29C 69/001 (2013.01); B33Y 70/00 (2014.12); C08J 5/121 (2013.01); B29K 2101/12 (2013.01); B33Y 10/00 (2014.12)] 7 Claims
OG exemplary drawing
 
1. A method of producing a multi-material meltable 3D printer product filament having a length, comprising:
obtaining a section of a first solid 3D printer meltable filament which is aligned in-line or perpendicular to the length of the meltable 3D printer product filament and having a first chopped end including a first shape comprising at least one planar surface that is angled relative to the length of the meltable 3D printer product filament;
obtaining a section of a second solid 3D printer meltable filament which is aligned in-line or perpendicular to the length of the meltable 3D printer product filament and having a second chopped end including a second shape comprising at least one planar surface that is angled relative to the length of the meltable 3D printer product filament,
stacking and welding the first chopped end of the section of the first solid 3D printer meltable filament and the second chopped end of the section of the second solid 3D printer meltable filament wherein the first shape of the first chopped end of the section of the first solid 3D printer meltable filament and the second shape of the second chopped end of the section of the second solid 3D printer meltable filament are complementary to one another and define a transition between the section of the first solid 3D printer meltable filament and the section of the second solid 3D printer meltable filament; and
stacking and welding additional sections of the first solid 3D printer meltable filament having a first chopped end and the second solid 3D printer meltable filament having a second chopped end that are aligned in-line or perpendicular to the length of the meltable 3D printer product filament to form a 1-5 mm thick filament across a central axis of the filament.