Printing structures with openings in a side surface

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11828438
APP PUB NO 20220290837A1
SERIAL NO

17625019

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for producing a 3D item (1) by means of fused deposition modelling, the method comprising a 3D printing stage comprising layer-wise depositing an extrudate (321) comprising 3D printable material (201), to provide the 3D item (1) comprising 3D printed material (202), wherein the 3D item (1) comprises a plurality of layers (322) of 3D printed material (202), and an opening (405) in the 3D printed material (202), the opening (405) having an opening edge (410) that is at least partly defined by one or more interruptions (1410) in a subset (1322) of one or more layers (322) of the plurality of layers (322), wherein the method comprises providing each interruption (1410) by 3D printing a layer (322) of the subset (1322) with oppositely arranged turns (415), wherein each turn (415) connects a first layer part (3221) and a second layer part (3222), the first layer part (3221) and the second layer part (3222) forming legs of a U-turn (435), wherein, for each turn (415), the first layer part (3221) has a first length (LI) and the second layer part (3222) has a second length (L2), the second length (L2) being shorter than the first length (LI) such that over only part of the layer (322) the first layer part (3221) and the second layer part (3222) are configured adjacent, and wherein each turn (415) has a path length (Lr) with a radius of curvature (r1), and wherein each path length (Lr) is selected from the range of 0.9*7c*r11.

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Patent Owner(s)

Patent OwnerAddress
SIGNIFY HOLDING B VEINDHOVEN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hikmet, Rifat Ata Mustafa Eindhoven, NL 378 2151
Van, Os Jacobus Petrus Johannes Eindhoven, NL 24 64

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