About this 3D model

This is a low-cost (semi) automatic material renewal solution powered by rubber bands, which can achieve non-stop replacement of consumables, with a low cost of only 3 RMB. A1/A1 mini and Creality K1C have been tested to be perfect, theoretically supporting all printers, but you may need to make slight adjustments according to the actual situation, so I have provided the source files for your convenience in secondary creation. The model is divided into pneumatic connector version and direct insertion version. The direct insertion version does not require a pneumatic connector to be directly connected to the PTFE tube, but there is a risk of loosening. The BOM is placed in the original STL model, including part specifications and links, which you can refer to for purchase. 这是一款使用皮筋动力的低成本（半）自动续料方案，可实现不停机更换耗材，成本低廉仅需3RMB。 拓竹A1 mini、创想三维K1C 实测完美，理论上支持所有打印机，但可能需要你根据实际情况微调，所以我提供了源文件方便你二次创作。 模型分为气动接头版和直插版，直插版不需要气动接头直接和四氟管连接，但有松动风险。 BOM放在STL原始模型里，包含零件规格和链接，你可以参考购买。 Assembly video 安装视频：