| 摘要 |
[Problem] In a 3D printer, to instantaneously switch the raw material to be ejected without moving an ejection head on which multiple ejection nozzles are mounted. [Solution] The present invention relates to a 3D printer ejection head (100) on which multiple ejection nozzles (1a, 1b …) for ejecting raw material for three-dimensional fabrication are mounted and the movement of which is controlled so as to fabricate an intended three-dimensional object. The present invention is equipped with: a rotating mount (10) provided with multiple mounting parts (11a, 11b …) for mounting the multiple ejection nozzles (1a, 1b …) at angular intervals; a fixed mount (20) to which the rotating mount (10) is rotatably fixed; and a servo mechanism (30) for switching the ejection nozzle (1a, 1b …) positioned at the ejection position by rotating the rotating mount (10) by a prescribed angle. |
