[SP] Gather
No you need a gun from the start.
Edit: The only advice I could give is to make sure you're running a fully up-to-date steam version of the game. If you still have a problem, enable the developer console and enter "give weapon_portalgun" to the console.
Can you tell me if my solution is the intended one?
2. I funneled myself up in the section on the right, crouching to get as high as possible (the funnel i was in was coming out a blue portal directly below me).
3. I quickly (well, super quickly) shot a blue portal into the portable area next to the cube in the midsection and then the same blue portal behind the door before it got closed (it had the effect of lifting the cube up and dropping it onto the portable surface).
4. I put an orange portal into the floor into which I was falling and it gave me enough speed to get onto the ledge before the elevator. Then i jumped back down and grabbed a cube from the area on the right.
5. Finally, to get the cube from the middle area, I put a portal under it while I was flying up out of the portal in the right section, put a portal underneath me, caught the cube on the way down and landed on the ledge.
It took me about hundred tries to manage to place a portal behind the gate before it closed, so I'm doubtful whether you had this solution in mind. And much thanks for yet another great map!
@negorro I tried that for an hour now and I have no clue how you did it :O
I don't get point 3. How do you funnel a cube that is on the button? Is there a special method of placing the cube on the side? Please make a screenshot of the setup.
HERE'S A LITTLE HINT *SPOILER ALERT*
Jesus? Santa Claus? haha well I think I know what you're referring to Evil.
I don't get point 3. How do you funnel a cube that is on the button? Is there a special method of placing the cube on the side? Please make a screenshot of the setup.
It's not ON the button - it's leaned against it, just like you'd lean it in order to grab it while you're flying out of the portal next to the button. The funnel catches it since its diameter is wider than the portal its coming out of. And the setup will work only with the button the midsection, since the other 2 sections have a bit of an extra space between their buttons and portable flooring. But it looks like I've been simply wasting my time ))
I don't get point 3. How do you funnel a cube that is on the button? Is there a special method of placing the cube on the side? Please make a screenshot of the setup.
HERE'S A LITTLE HINT *SPOILER ALERT*
How could I miss that -_-
This is it, right?
My method:
Bring all 3 cubes to the moon room. One on the button, the other two stacked next to deadly lasers. Jump on them and shoot blue portal on little surface below. Shoot the otrange portal on funnel. Throw one of stacked cubes into funnel. When it is on top shoot blue portal on wall vis a vis camera room, it will break glass. With one cube aim laser on triangle to deactivate fizzler. Using portable surfaces in camera room bring camera to main room, and then funnel it to final room as usual cube. Continue with challenge solution, at the and stack cube and camera on middle button, funnel yourself up, grab them mid fling and bring to the upper room. Stack them to get into a tunnel
Yeah that's it
Your solution is a bit diffrent from the intended way of breaking the window. As you can see I placed the lasergrid a bit further away from the edge to prevent shooting a portal down there. I even checked standing on one cube but I forgot that you can do it with two cubes -.-
But I'm fine with that 
and don't want to annoy you with anymore updates...
So congratulation Jacu you deserve cake. ( I already ate a piece for giving a hint 
)
Gray found a solution by just using portals that was very nice.
So now there are three solutions but I wont spoil mine because I'll maybe use it again in a future map.
Cheers, nom nom nom
Congrats Jacu. 
Yes I also got the hint to think about the security camera for the final part.
My glass-breaking solution had about a thousand steps partly because I missed the "easy" method for bringing cubes into the laser room. My brute force approach involved stacking cubes on the bridge button and re-spawning one of them from the laser room. Also, I was throwing a cube onto the moon button and running outside the laser-death-field so I could portal back into the laser room. That's how I set up the glass smash.
Congrats again Jacu and to marKiu for an amazing map.
Yes! Finally solved
Thus my overview:
Difficulty: Hard/Very hard
Looks: Excellent
lol you seem to be drunk in your avatar, if that is really you. Oh yes, and any other maps of this difficulty? I'm feeling adventurous