[PTI] dw chamber 3
A laser puzzle. I think this one is a bit tougher than my first two maps: medium to hard difficulty.
When constructing the map, it looked quite messy with all the antlines and signages, so I took away the ones from the exit door.
The exit door will open as soon as all laser catchers are activated and a cube is on the button next to the door.
Enjoy and please leave a rating and a comment 
Edit: Changed one portable surface to deny an exploit.
This was a little harder than your previous efforts. With so many cubes and relays/catchers it took a few minutes to sort things out, but it was never confusing. I'm not sure I did this one right, though. After playing around with what I thought was the intended solution, I decided it couldn't be done that way and just
Not a fan of laser puzzles, but this one was better than many. Thanks for mapping.
@RogerL: I think I've fixed your exploit with the portalable surface.
I apologize for the portalable surface behind the cube dropper. My mistake: there's no use for it and if I see another reason to edit the map I will fix this "beauty issue". Thank you for pointing it out