Pythagorean Cup 3D Models: STL Files to Print

«Pythagorean Cup 3D Models: STL Files to Print»

Most entries follow the same principle: an internal column or channel leads from the bottom of the bowl to a hidden outlet, so the cup holds liquid only up to a certain level. Authors differ in how they build that channel — some use a central pin, others route it through the wall or hide it in a decorative column. There are also simplified cutaway versions that show the siphon openly, which are easier to understand and to inspect in a slicer.

When choosing a model, look at the wall thickness and the diameter of the internal channel, since a narrow passage is harder to clear and a very thin wall may not seal. Check the number of parts and whether the author expects glue or a press fit, and read the listed material and layer height. Photos of real prints on the model page show how the siphon outlet looks after printing and whether the surface needs post-processing.

If the results feel narrow, try related terms: greedy cup, cup of greed, unfillable cup, Pythagoras beaker, siphon cup, or the German and Chinese names used by some authors. You can also search for siphon models, trick cups or prank tableware to find variants that use the same principle in a different shape. Combining such terms with a size or use case, like espresso or mug, usually narrows the list further.