NanoNote finds the equilibrium

On the qi-hardware list a post of non electronic hack of the Ben Nanonote from Werner Almesberger has improve a lot the stability of the system , see picture and video of what we are talking about :)

Using a the 3D scans of Ben NanoNote he has already done Werner has made a counterweight that fits inside the Ben

you can see a video with the demo here.

As you can see not all hardware hacks are related to electronics :)