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公开(公告)号：WO2022131911A1
公开(公告)日：2022-06-23
申请号：PCT/NL2021/050762
申请日：2021-12-14
申请人： ULTIMAKER B.V.
发明人： KONVICNÝ, Jirí , SHARMA, Sarita
IPC分类号： B29C64/118 , B29C64/393 , B33Y10/00 , B33Y50/02 , G06F30/20 , G06F30/30
摘要： A method of creating instructions for an FFF printer for printing an infill structure of a 3D object is described. Instructions are created for printing a first layer (1) comprising a number of substantially parallel traces (11) that are separated by intermediate elongated first voids (12) with a first predefined width, and for printing a second layer (2) with traces (21) running substantially in parallel to the traces of the first layer, but with a first offset to the traces of the first layer, such that the traces of the second layer are arranged above the elongated first voids in the first layer, and for printing a third layer (3) with traces (31) running substantially in parallel to the traces of the second layer, but with a second offset to the traces of the second layer, wherein the traces in the third layer are separated by intermediate elongated third voids.
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2.发明申请
公开(公告)号：WO2021060977A1
公开(公告)日：2021-04-01
申请号：PCT/NL2020/050584
申请日：2020-09-23
申请人： ULTIMAKER B.V.
IPC分类号： G01B7/02 , G01B11/02 , B29C64/118 , B29C70/38 , B33Y30/00 , G01B7/00 , B29C64/393
摘要： The invention relates to an FFF printing system (100), the FFF printing system comprising a print head (105), a feeder (91;126) arranged to feed a filament (4) into the print head (105), and a container (801) for storing the filament on one or more filament spools (88). The system also comprises a prefeeder (81) arranged to feed the filament from the spools to the feeder (91; 126), and a first flexible tube (D01;102;121) for guiding the filament (4). A filament path length measuring device (1) is arranged to detect a misalignment between the feeder and the prefeeder. Measurement signals are sent to a processing system to correct any misalignment.
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公开(公告)号：WO2021139928A1
公开(公告)日：2021-07-15
申请号：PCT/EP2020/084256
申请日：2020-12-02
申请人： ULTIMAKER B.V.
发明人： KUIPERS, Tim
摘要： The invention relates to a method of determining toolpaths for an infill structure for a digital 3D model. The invention provides for a framework for planning toolpaths with control over the adaptive width for minimizing over- and underfill and introduce a beading scheme which reduces the bead width variation compared to the state of the art. We show that this framework supports various control schemes (so-called 'beading schemes') for determining the bead spacing and extrusion widths. Furthermore we present an approach to accurately realize adaptive bead width. The proposed method provides for a geometric framework allowing various adaptive bead width control schemes used to generate contour-parallel toolpaths which minimize under- and overfill.
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公开(公告)号：WO2020130811A1
公开(公告)日：2020-06-25
申请号：PCT/NL2019/050844
申请日：2019-12-17
申请人： ULTIMAKER B.V.
发明人： HUITEMA, Robert , VERSTEEGH, Johan Andreas , VAN DER ZALM, Erik , NEUT, Matthijs , VAN BEEK, Teun , ELSERMAN, Martijn
IPC分类号： F16D11/16 , F16D27/01 , B29C64/209
摘要： A bidirectional magnetic clutch for an additive manufacturing system, comprising a concentric arrangement of an inner drive member (2) and an outer drive member (3) enclosing the inner drive member (2), the inner and outer drive members (2,3) being rotatable relative to each other. The inner drive member (2) comprises at least two outward facing recesses (5, 6) and the outer drive member (3) comprises at least two inward facing recesses (8,9). Each outward facing recess (5,6) comprises a radially moveable roller member (10,11) of ferromagnetic material. The inner drive member (2) further comprises a magnetic biasing system (12) configured to magnetically bias the roller members (10,11) into the outward facing recesses (5,6). The bidirectional magnetic clutch further comprises a magnet actuator (13) at least partially circumferentially arranged around the outer drive member (3) and configured to maintain an engaged state or disengaged state of the bidirectional magnetic clutch.
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公开(公告)号：WO2022098231A1
公开(公告)日：2022-05-12
申请号：PCT/NL2021/050665
申请日：2021-11-01
申请人： ULTIMAKER B.V.
IPC分类号： B29C64/118 , B29C64/209 , B33Y30/00
摘要： A dual filament feeder assembly (110) for an additive manufacturing system comprises a drive wheel (206) and a drive shaft (134) connected to the drive wheel. The dual filament feeder assembly (110) comprises a first feeder wheel (210) and a second feeder wheel (250) rotatably arranged around the drive shaft at a first side and a second side of the drive wheel (206). The dual filament feeder assembly further comprises a coupling member (270) arranged to selectively couple the drive wheel with the first feeder wheel (210) or the second feeder wheel (250). A shifting member (280) is arranged to move the coupling member between a first position and a second position. The coupling member drivably couples the drive wheel (206) with the first feeder wheel in the first position and couples the drive wheel with the second feeder wheel in the second position.
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公开(公告)号：WO2022093019A1
公开(公告)日：2022-05-05
申请号：PCT/NL2021/050652
申请日：2021-10-26
申请人： ULTIMAKER B.V.
IPC分类号： B29C48/87 , B29C48/02 , B29C48/255 , B29C48/25 , B29C48/92 , B29C64/118 , B29C64/209 , B33Y10/00 , B33Y30/00
摘要： 14 Abstract An extruder head for an FFF printing system is described comprising an extruder channel and a heating element (7) for heating part of the extruder channel so as to melt a printing material. The extruder channel comprises a first cylinder (2) and a second cylinder (4) connected to the first 5 cylinder, optionally via an intermediate transition part (3), wherein the extruder head further comprises a Peltier device (10;30) arranged to locally cool a region (11) of the second cylinder so as to make the printing material in the region (11) less or non-flowable. The Peltier device comprises a first heat conductive element (12;32), a second heat conductive element (13;33), and a plurality of thermo-electric units (14;34) arranged between the first and second heat conductive 10 element. [Figure 1]
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公开(公告)号：WO2023008993A1
公开(公告)日：2023-02-02
申请号：PCT/NL2022/050382
申请日：2022-07-05
申请人： ULTIMAKER B.V.
IPC分类号： B29C48/27 , B29C48/02 , B29C48/05 , B29C48/25 , B29C48/285 , B29C48/92 , B29C64/118 , B29C64/209 , B29C64/321 , B29C64/35 , B29C64/393 , B33Y30/00 , B33Y40/00
摘要： A device (1) for cleaning an extruder (2) of an FFF system is described comprising an extruder mount, a filament feeder, a detection unit arranged to detect extrusion of material out of the extruder, an inspection unit to visually inspect a portion of the filament. A controller is arranged to control a heating element of the extruder and to control the filament feeder and to receive measurement data from the detection unit. If the measurement data indicates that material is not extruded out of the extruder, the filament is retracted from the extruder at a purging temperature. Otherwise, the hot-end of the extruder is cooled off to a second temperature and then the filament is retracted from the extruder. The inspection unit will then perform a visual inspection of the tip portion of the filament. If the tip portion is not yet clean, the automated cleaning procedure is repeated.
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公开(公告)号：WO2023277692A1
公开(公告)日：2023-01-05
申请号：PCT/NL2022/050379
申请日：2022-07-01
申请人： ULTIMAKER B.V.
发明人： TER BEKE, Chris
IPC分类号： G06F3/12
摘要： A system (100) for processing 3D print jobs is described with a first software module (102) to receive a print job request (111) from a user application (101) running on a remote computing device, the print job request comprising a location indicator indicating a storage location of a print file to be printed. The first software module is arranged to send a print job ID (111') back to the user application. A second software module (103) receives a print request call (115) from the user application, comprising the print job ID and a printer ID. The second software module is arranged to send the print job ID (116) to the first software module, and to receive a print job response (116') back from the first software module, the print job response comprising the print job ID, the print job name and the location indicator of the print file.
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公开(公告)号：WO2021162541A1
公开(公告)日：2021-08-19
申请号：PCT/NL2021/050031
申请日：2021-01-19
申请人： ULTIMAKER B.V.
IPC分类号： B29C64/118 , B29C64/209 , B33Y30/00
摘要： A filament feeder (1) for use in a fused filament fabrication printer comprises a feeder body (2) which comprises a channel (3) for guiding a filament (F) there through. A first and a second driven grip roller (4, 5) are arranged on opposing sides of the channel (3) for clamped engagement with the filament (F), wherein the first grip roller (4) is rotationally arranged about a first roller axis (4a) and the second grip roller (5) is rotationally arranged about a second roller axis (5a). The feeder comprises a first drive gear (6) for driving the first grip roller (4), the first drive gear (6) being rotatably arranged about the first roller axis (4a), a second drive gear (7) for driving the second grip roller (5), the second drive gear being rotatably arranged about the second roller axis (5a), and a suspension system (S) for suspension of the first and second grip roller (4,5) and of the first and second drive gear (6,7). The suspension system (S) is arranged to allow lateral movement of the first and second grip rollers (4, 5) with respect to the channel (3) for providing a variable distance (D+∆D) between the first and second roller axes (4a, 5a).
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公开(公告)号：WO2021020962A1
公开(公告)日：2021-02-04
申请号：PCT/NL2020/050463
申请日：2020-07-14
申请人： ULTIMAKER B.V.
IPC分类号： B29C64/118 , B29C64/393 , B33Y30/00 , B33Y50/02
摘要： The invention relates to a fused filament fabrication device (1) comprising a print head (2) comprising a melt chamber (22) and a nozzle (4). The print head (2) is movably arranged relative to a build surface (10) in at least two perpendicular directions. A feeder (3) is arranged to feed filament material to the print head (2). A sensor is arranged to directly or indirectly measure a pressure in the melt chamber (22), the sensor producing pressure data. A flow sensor is arranged to measure a flow of filament into the print head (2) to obtain flow data. The device (1) also comprises a controller (7) arranged for a) controlling movement of the nozzle (4) over the build surface (10), b) controlling deposition of molten filament material on the build surface (10) during the movement of the nozzle (4), c) receiving the pressure data and the flow data, and d) determining a local height of the build surface (10) for a plurality of locations on the build surface (10), using the pressure data and the flow data.
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