US 12,134,225 B2
Method for 3D printing a 3D item
Rifat Ata Mustafa Hikmet, Eindhoven (NL)
Assigned to SIGNIFY HOLDING, B.V., Eindhoven (NL)
Appl. No. 16/500,348
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Apr. 9, 2018, PCT No. PCT/EP2018/058952
§ 371(c)(1), (2) Date Oct. 2, 2019,
PCT Pub. No. WO2018/189062, PCT Pub. Date Oct. 18, 2018.
Claims priority of application No. 17166399 (EP), filed on Apr. 13, 2017.
Prior Publication US 2021/0101330 A1, Apr. 8, 2021
Int. Cl. B29C 64/118 (2017.01); B29C 64/209 (2017.01); B29C 64/336 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 70/10 (2020.01); B29K 105/08 (2006.01); B29K 309/08 (2006.01)
CPC B29C 64/118 (2017.08) [B29C 64/209 (2017.08); B29C 64/336 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/10 (2020.01); B29K 2105/08 (2013.01); B29K 2309/08 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for 3D printing a 3D item using a fused deposition modeling 3D printer, wherein the method comprises the steps of:
feeding by a feeder unit, a 3D printable material to a printer nozzle of the fused deposition modeling 3D printer, wherein the printer nozzle is comprised in a printer head,
providing, with a fiber providing unit, an elongated solid fiber to the printer nozzle, wherein said fiber providing unit is separate from the feeder unit, and
co-depositing, during a printing stage, the 3D printable material and the elongated solid fiber via the printer nozzle to provide the 3D item comprising 3D printed material with the elongated solid fiber embedded therein,
wherein the printer head makes at least one turn during the printing stage,
wherein the fiber providing unit is further configured to affect a reduction in rotation of the elongated solid fiber around an axis of elongation of the elongated solid fiber to reduce twisting of the elongated solid fiber which occurs as a result of the printer head making said turns during said printing stage,
wherein the reduction in rotation occurring on the elongated solid fiber before it is provided to the printer head, and
wherein the elongated solid fiber has a diameter d of at least 0.5 mm.