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Portal 2 Hints
How can I set up my redirection cubes to get that done?
1 of 6: If you look at the relays from various angles, you'll see that they can be grouped into pairs, with each pair being the defining points of a straight line.
2 of 6: For instance, the two relays nearest the laser emitter could be the defining points of a straight line that extends to the corner of the chamber that's near the button pedestal.
3 of 6: Position your first redirection cube under the laser emitter so that the beam goes through both of those relays.
4 of 6: The other two relays form a straight line pointing to the exit door's receptacle.
5 of 6: Note that there's a point where their line intersects the line that the first two relays make.
6 of 6: So take the second redirection cube down to a spot near the end of the laser beam and position it so that the beam goes through the other two relays and into the receptacle.
