Toys & mechanisms
Pythagorean Cup — Greedy Cup / Cup of Justice (parametric)
Drink from it normally and it works like any cup; fill it past the 'greedy line' and the entire contents siphon out the bottom. Attributed to Pythagoras (~6th c. BC) — a working hidden-siphon trick cup. Parametric SCAD: change cup_d / cup_h to resize.
Files, assembly instructions, licenses and print settings are available on the model listings.
