This attachment allows for a clean pour from a mason jar. Without this adapter, water needs to be poured too fast or you risk having water run down the side of the jar and making a mess. This model is for a wide-mouth jar, but to fit a normal size jar, just scale it down to 81% in the slicer (I know 81 is a weird number to scale to, but 80 was just a hair too small).
The underside of the ring and the overhang just above the threaded section will need supports.
The author marked this model as their own original creation.