One-hand rice measuring cup

You can measure 1 cup of rice with your single hand.

It measures 1 cup of rice (180ml). You can scale it for different volumes.

| volume | scale |
| ---- | ---- |
| 1 cup (180ml) | 100% |
| 1.5 cup(270ml) | 114.5% |
| 2 cup(360ml) | 126% |

Jul. 18. 2021 : Improved
Sep. 19, 2021 : Improved (with hook, cup2.stl)
Jun. 12, 2024 : Improved. Plastic welding using soldering iron is no longer necessary.