This is the new separator featured in our k'nex ball machine Impossible. This separator has some inspiration from Thibault Art's ball machine route 66 at 7:30. This separator is very compact (hence its name), as it is only a blue rod high. You can put multiple separators in succession to separate multiple paths, or just use one.
  Either way, have fun building! Be sure to look at the image notes. They'll help you a lot.

The video:

here, take a look at the video so you can see what you'll be making.