About this 3D model

需要10厘米直径63mm的PVC管或者亚克力管，2个M4X10mm螺丝。漏斗需要用M4丝锥制作螺纹，也可以直接把漏斗粘在支架上使用。 Requires 10cm of PVC pipe or acrylic pipe with a diameter of 63mm and 2 M4X10mm screws. The funnel needs to be made with an M4 tap to make threads, or the funnel can be directly glued to the bracket. B站视频： youtube视频：