Rain Gauge

This is something I design as a part of a big project but, I had to break the project up into smaller parts because I couldn't manage to finish it all.
This part senses how heavy the rain is and as such, it can double as a rain gauge. I decided to seriously work on it and make it possible to be easily used as a rain gauge.
The inherent characteristic of the design is interchangeability.
I hope that you can all contribute to this design by giving comments of it.
Feel free to use the design but, please share
what you have made here on thingiverse.