Nice find, I missed this.. :-S
I'll left this as is (I no longer have the map source)

Hello Le Verdier, I read the post you wrote on my "don't try this map !"
So I took some captures, it will be clearer to show you how I did :
http://cs2bus.com/profiles/76561198060431751/screenshots/
(spoil)
(Feel free to delete this post after reading)

Mind breaking !
The plenty of things to connect or push is sometimes pertubating, because we do not always see what happens. But this map is quite a challenge ! Btw :
I didnt' have to rotate the reflector cube (I read your first post after solving the map)

My maps : http://cs2bus.com/profiles/76561198060431751/myworkshopfiles/

"Think different"

Thanks for playing this map :)
There is a laser catcher in the white room. It unlocks something

I have placed the first reflector cube and a platform has come up out of the goo but I have no idea what to do next.

A part of this map requires some specific skill: rotate the reflector cube so that the lens pointing upward. There many ways to do that, for example, help with the other cube