Track Sweeper

First time i need to think the mechanism work through the combination of two on/off button and the posibility of where the ball will fall. Superb mechanism and locking system after all, Track sweeper and path builder.

That mechanism is really complex and more complex is the process of understanding it! I needed the video to complete it so thanks for that. Overall a great level!
Thanks!

Now the mission has changed to P and I'm sure this is the hardest lv of the Track lv when P has to do two tasks together as P also is a part of the route. I tried a lot to understand how the mechanism works, some wedge made the wrong way for the ball, which made me think again and again to find the right control for that ball. Clever.