| 摘要 |
The present invention relates to a filament supplier of a three dimensional printer, comprising: a filament spool in which the filament is winded; a filament case having a space inside, wherein the space rotatably accommodates the filament spool, and having a filament inlet hole; a drive roller device which is rotatably placed in the filament case and cones into contact with the filament; and an idler which is placed to face at least part of the drive roller device on the filament case and pressurizes the filament in the direction of the drive roller device. The contamination and the damages of the filament can be prevented and the filament can be stably supplied. |
