Third attempt at designing a 3D printable Pythagorean cup (i.e., self starting siphon) in Fusion 360, for layering fluids of different densities by injecting a denser fluid under a less dense fluid. With the eventual goal of using such a siphon to make a Black and Tan. This model however is designed for making a layered shot.
More details at https://blog.doingsciencetostuff.com/2019/09/15/mini-siphon-mk-1/ .
This design is very fragile when printed, so be careful! To save on print time and support material, the test print was printed upside-down. Also, be sure to use food safe filament and print heads, etc.