公开(公告)号：US11345093B2

公开(公告)日：2022-05-31

申请号：US16879850

申请日：2020-05-21

申请人： Essentium Inc.

发明人： Jason Greene ,  Chad Eichele

IPC分类号： B29C64/393 ,  B29C64/25 ,  B29C64/245 ,  B29C64/209 ,  B29C64/227 ,  B29C64/321 ,  B29C64/118 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y30/00

摘要： A three-dimensional printer includes an enclosure defining a chamber and a print surface disposed within the chamber. The printer further includes a nozzle displaceable relative to the print surface for melting and dispensing a filament on the print surface to form a dielectric part during a printing process. The printer further includes a filament drive system for supplying the filament to the nozzle, and one or more capacitance sensors coupled to the print surface. The printer further includes a controller electrically coupled to the capacitance sensors for measuring a capacitance, with the controller generating an error signal in response to the controller determining a change of capacitance when the dielectric part is displaced relative to the print surface during the printing process. The printer further includes a display device electrically coupled to the controller and displaying an error message in response to the display device receiving the error signal.

公开(公告)号：US20230405924A1

公开(公告)日：2023-12-21

申请号：US17845027

申请日：2022-06-21

申请人： Essentium, Inc.

发明人： Vahid Safavi-Ardebili ,  Jorge Arturo Mijares Tobias ,  Iris Gisey Euan Waldestrand ,  Kristian Oftebro ,  Chad Eichele

IPC分类号： B29C64/209 ,  B29C64/118 ,  B29C64/295 ,  B29C64/393

CPC分类号： B29C64/209 ,  B29C64/118 ,  B33Y30/00 ,  B29C64/393 ,  B29C64/295

摘要： A heated nozzle assembly for a three-dimensional printer includes a shank defining a feed end and a first internal flow passage, where the feed end is fluidly coupled to the first internal flow passage. The heated nozzle assembly also includes a shank barrel coupled to the shank that includes a second internal flow passage and a body portion. The second internal flow passage of the shank barrel is fluidly coupled to the first internal flow passage of the shank and the body portion of the shank barrel defines a plurality of heater segments that are disposed along the body portion of the shank barrel that are thermally isolated from one another. The heated nozzle assembly includes a plurality of heating elements that each correspond to one of the plurality of heater segments disposed along the length of the body portion of the shank barrel.

公开(公告)号：US20210362430A1

公开(公告)日：2021-11-25

申请号：US16879850

申请日：2020-05-21

申请人： Essentium Inc.

发明人： Jason Greene ,  Chad Eichele

IPC分类号： B29C64/393 ,  B29C64/25 ,  B29C64/245 ,  B29C64/209 ,  B29C64/118 ,  B29C64/227 ,  B29C64/321

摘要： A three-dimensional printer includes an enclosure defining a chamber and a print surface disposed within the chamber. The printer further includes a nozzle displaceable relative to the print surface for melting and dispensing a filament on the print surface to form a dielectric part during a printing process. The printer further includes a filament drive system for supplying the filament to the nozzle, and one or more capacitance sensors coupled to the print surface. The printer further includes a controller electrically coupled to the capacitance sensors for measuring a capacitance, with the controller generating an error signal in response to the controller determining a change of capacitance when the dielectric part is displaced relative to the print surface during the printing process. The printer further includes a display device electrically coupled to the controller and displaying an error message in response to the display device receiving the error signal.