There was a lot of progress this month but we are still behind on schedule. We decided to 3d print the maze and laser cut the frame and box. We have part of the code and know how the maze is going to look like. 

The two frames will be on the same level as the maze and connected by rods from below to the motors.

The ball will then fall in the box below : 

in either the left corridor (the correct one) or the right corridor (the wrong one). Laser sensors will be used to monitor which corridor the ball falls in and act accordingly.