Pythagorean cup
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Estimated printing price per file
€7.21 – €8.81 net (excluding VAT)
For file: cup-no-handle-final_02mm_pla_mini_7h24m.gcode
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Average indicative estimate: €8.01 excluding VAT (range midpoint).
- Weight reported by the author
- 113 g
- Print time reported by the author
- 7.4 hr
- Source material
- PLA
- Estimate material
- PLA
- Estimate printer
- Bambu Lab P1S - 0.4 nozzle
- Estimate process
- 0.20mm Standard
Indicative estimate for the selected file only, based on the author’s weight and print time. File variants are not added together. The final price is calculated after file analysis.
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A pythagorean cup is similar to a regular cup, with the exception that if you fill above a certain height inside the…
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Updated at source:
Model information
- Source
- Printables
- Category
- Physics & Astronomy
- License
- Creative Commons — Public Domain
A pythagorean cup is similar to a regular cup, with the exception that if you fill above a certain height inside the cup, then all of the contents of the cup will be emptied.
This is good to teach people not to be greedy ;)
It works by having a hole at the bottom of the cup, that goes up through the center part of the cup and back down to inside the cup. Once the liquid passes a certain point, gravity pulls the liquid out and the concept of "Communicating Vessels" makes sure to empty the whole cup out.
You can read more about this cup here: https://en.wikipedia.org/wiki/Pythagorean_cup
I ran into this randomly one day and thought it would be a nice project to create with my printer.
I modelled it in Fusion360. There are two versions of it, one with a handle and one without. Since I wasn't going to actually use it, I printed the version without the handle for simplicity, but I added a nice coffee-mug-like handle. If you print the version with the handle you'll probably need supports.
The version I printed without the handle works just as described. The version with the handle is the same exact model, so should work too.
NOTE: I do not recommend actually drinking from the cup, unless you know the material you printed it from is clean and safe for drinking out of!
Print instructions
I printed this with PLA (from Hatchbox) with 0.2mm layer height.
Took about 8 hours and works nicely.
The version without the handle doesn't need any supports.
If you want to print the handle, you might need to add supports under the handle.