Pythagoras Greedy Cup
thingiverse
Similar to https://www.thingiverse.com/thing:3056525 by @i1114988 , but remodeled to be tolerant for less precise printers. Fills and holds water to a point, then empties entirely. Tries to be sneaky in hiding the mechanism.
Download Model from thingiverse
With this file you will be able to print Pythagoras Greedy Cup with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Pythagoras Greedy Cup.