This little turbine can be mounted on a tap, the design is based on a crossflow turbine. It is just a prototype and still work in progress, the final goal is to
...Plus mount this turbine on a little generator to generate enough energy to power a led. The rotor of this turbine has a diameter of only 30mm. To mount the cover on the housing you only need 3 M4x25 screw and 3 M4 nuts.
Movie oft he working turbine:
https://www.youtube.com/watch?v=YQBfxnxJPRY
https://www.youtube.com/watch?v=Av-TDtgLZLs
