CUBOTino: A small, simple, 3D printed, inexpensive Rubik's Cube solver robot
github.com
github.com
It is a bit slow, but it seems to work. Here are some videos: https://www.youtube.com/user/IAssemble/videos
One suggestion - it looks like you could have a standard 'learn the cube' program where the webcam is off to one side of the robot, to remove that little bit of friction.
I have a feeling though that this isn't about solving a cube but rather about building a cube solver o : - )