Melting assembly for melting 3D printing supplies and 3D printer

The utility model relates to the technical field of 3D printing, and provides a melting assembly used for melting 3D printing consumables and a 3D printer, the melting assembly used for melting the 3D printing consumables comprises a guide piece used for guiding preheated 3D printing consumables to flow and used for heating the 3D printing consumables, the guide piece is provided with at least two first flow channels and a second flow channel, and the first flow channels are communicated with the second flow channel; the first flow channel is arranged in the circumferential direction of the second flow channel, and the cross section area of the second flow channel is smaller than that of the first flow channel. According to the technical scheme, the outer surface of the heated consumable can be stripped, the inner core of the consumable is directly heated, and therefore the heating speed of the consumable is increased. 本申请涉及3D打印技术领域，提供一种用于融化3D打印耗材的融化组件及3D打印机，其中用于融化3D打印耗材的融化组件包括：引导件，用于引导预热后的3D打印耗流动以及用于对3D打印耗材进