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My first Test Chamber

Now I can see how you intend the exit chamber to be solved. But, it is still quite easy to solve without bringing down the cube from the excursion funnel - when you get the reflection cube, just place it on the edge of the cube button that raises the piston lift. It is then high enough to direct the laser at the receiver that opens the exit door .

Thanks a lot for your feedback, I think I fixed the issue, so feel free to give my chamber a try again.

OK, here's what I did on getting to the exit room : Drop reflection cubes; use one to raise piston platform with me on it; jump to pedestal button, press, cube is pushed into the excursion funnel and a new cube drops; jump back to the ground, repeat piston platform taking the new cube up with me; jump over to the button that starts the laser and put the cube on it; place portal sideways under laser so that the laser enters the portal in the center; jump back to ground; put other portal on the wall, stack both reflection cubes to direct laser to receiver; door opens, walk out . Again, I did not reverse the excursion funnel or use the two pedestal buttons to the left of the exit that operate piston platforms.

Really? I thought the two buttons which activate the piston platforms were necessary in order to get the cube. Did you find another way to get it? I know my chamber is a bit unnusual and has a lot of buttons, plus the cube is out of sight if you don't open a portal in the ledge I built near the roof, but I think every step is necessary. Maybe I made some design mistakes, so I'd be glad for any feedback you could give me.

Very good for a first map, thumbs up! But, I didn't find any use for the button that reverses the excursion funnel or the two pedestal buttons to the left of the exit that operate piston platforms, apparently to push a cube off of a ledge. Maybe you have given the player too many cubes.