公开(公告)号：US20210308946A1

公开(公告)日：2021-10-07

申请号：US17224526

申请日：2021-04-07

申请人： Bondtech AB

发明人： Martin Bondéus ,  Kenneth Skogward

IPC分类号： B29C64/321 ,  B65H51/10 ,  B29C64/118 ,  B33Y30/00 ,  B33Y40/00

摘要： A filament feeding device (100) for use in 3D-printing comprising a first feeding wheel (110) configured to rotate with a first rotational shaft (112) and a second feeding wheel (120) configured to rotate with a second rotational shaft (122). The first and second feeding wheels (110, 120) are separated by a separation distance so as to allow feeding of a filament material received between said first and second filament wheels (110, 120). The filament feeding device further comprises an adjuster element (130) movable between a first distinct position (130a) setting said separation distance to a first predetermined distance, and into a second distinct position (130b) setting said separation distance to a second predetermined distance, and wherein said second predetermined separation distance is larger than said first predetermined separation distance. Further, a 3D-printer comprising such a filament feeding device is herein disclosed.