Pythagorean Cup / Greedy Cup Joke (NO support)

Want to make some jokes to your friends? This is the famous Pithagorean Cup, also called Greedy cup, if you fill it halfway it will be a normal cup, if you fill it to the top it will "magically" empty itself.

NOTE: I uploaded a version with visible canal and one with hidden canal, the printing profile i uploaded is perfect for both of them.

NO SUPPORT NEEDED

You can scale it up as much as you want but you shouldn't scale it down less than 50% or it won't work