What I had done to get in position is put the cube in the button and gain momentum, then put one portal next to the cube and one next to the funnel (or its projection on the ground) while still flinging off them, then grab the cube while falling, then (or after how much time you want to take still flinging to study it, it's not time sensitive) let go of the cube at the apex of a fling next to the funnel, so you enter the funnel while the cube keeps flinging. Wait for the cube to fling off a couple more times before placing its exit portal under the funnel (wait too long and it looses too much speed); you have more than enough advantage on the cube as to be able to get into the bridge room, place the portals, and reach the buffer zone before the button is pressed.

Wait, the intended solution is to "fling the cube" ? As in, just move the cursor up very fast while jumping under the funnel and release it at just the right moment? I tried to do this about a hundred times after reading that it was the intended solution, but never managed to. Don't know if I need Higher sensitivity or what.

you need to place light bridge slighlty deeper in the pit - i just took cube straight to the funnel jumped on top of it when button was pressed and reached light bridge and that was it

PS just looked at the rest of LB's playthrough and I didn't do what he did at 18:33 i.e. he drops into pit under laser field and shoots portal into that room - I walked across the light bridge into that room, made new bridge across to exit room, walked between laser field and fizzler and waited for cube to get to button. Sorry about all this, I'm just a bit wound up about resorting to cheating - I'll try to be a bit more concise next time!

Really good puzzle, but I couldn’t do it . After a few wrong moves, I worked out what I need to do, but after about 30mins trying to pull it off, I gave up and noclipped that part to set it up. I completed the second part in a reasonable time without too much trouble. After completing it (by cheating), I looked at LB’s solution below and it looks like what I was trying to do was correct(?), but my portal skills aren’t up to it .

What I did felt unconventional, did I do it right? https://youtu.be/7Bg_M22C0zM

That was pretty clever. Took me a while to figure out, but the "aha!" moment was great. Thanks for making it!

im not sure i got the intended solution,i didnt block the funnel with the bridge.

Very clever man, I took a few tries before I realized the bridge maneuver, and the exit part is clever and fun .

@temporarymanwastaken Yes that is intended. The white panels at the exit area serve no purpose as I updated the map to make it more easier and forgot to take it out.

@p0rtalmaster You were supposed to get the cube in the funnel by flinging then block the cube in the funnel using the light bridge. That way you have enough time to get across to the bridge source area and to the "switching zone". :)

@kimist108 Is that still possible? I thought the bridge was guarded with a laser field to prevent players from doing that.

Didn't use the white panels past the last fizzler. I was supposed to block the funnel with the light bridge , right?

To be honest, this one isn't one of your better works (though still a decent puzzle). Seemed difficult to decode the intended solution in this one. Was it to pass over to the hard light bridge source (laserfield was on), and then portal out and get into the "switching zone" ?
'cause that's what I ended up doing :P

I got trapped where | \_/ () did too (in the corner with the hard light bridge, without the cube...). Should be pretty easy to fix though.

good

Well, I did not use the button that removed the fizzler for the flinging technique not liked by Mad Fool. Got a portal in the bridge room and the area where the funnel starts so as to have the bridge in the area where the funnel starts. The bridge was raised, not floor level. So I re-spawned the cube, got up on the bridge with the cube, hopped up to the funnel and grabbed the cube. Once I got to the funnel button, got across to the laser area. After that, a few more portals and re-spawning cube got me to the exit with the cube.

Thank you!
Were you stuck? :o I'm sorry if you did
And the room is huge because there was a puzzle involving the players to get the bridge back to get across the exit door (it was previously separated by goo) but due to unintended solutions, the cube dropper area and the bridge was separated so it broke the solution. I think I forgot to remove the white walls at the exit area and all because it was pushed back to prevent exploits, and its no longer needed in the solution now

Otherwise the test is awesome! Holding the cube in the funel with the bridge and everything - just awesome. One thing though - Why is the room with the exit door so huge?

I went to the bridge without the cube. Don't tell me I'm stuck!

MAP HAS BEEN UPDATED TO FIX UNINTENDED SOLUTIONS!
It looks really messy but I had to to force the intended solution. Let me know if you found any unintended solutions!

@jgaultney: Thanks! But your solution is not quite intended

@The MAD Fool: Thank you! The second half (after you reach the laser part) is intended. The first part is still unintended. Sorry to hear you don't like the flinging technique but I had to do it to prevent unintended solution :(
I updated the map to force the intended solution at the first part, but the second part's solution has changed slightly. So you might want to give it another try.

About your idea, you can go ahead and make a B version of it because I have no idea how the solution will work :P

@jgaultney: I don't think that was the intended solution.

@ RectorRocks: Was this the correct solution?
To be honest I am not a big fan of shooting above then below to gain speed. My reflects are just too crappy and getting worse :p However, I do like the rest of the puzzle and the logic behind it. So thumbs up.

All that said though, I do have a radical idea here. I think your puzzle might be better if you swapped where the maze is for where the cube dropper section is and vice versa. Also raise the cube dropper and shorten the distance between the tractor emitter and the button. If you don't see the direction I going with this, then I would like to create a B version of this puzzle base off of this idea. (But I thought I would give you 1st shot at it.)

An entertaining puzzle :) I don't think I did anything unintended. Thumbs up!
My play-thru: https://youtu.be/89IDeiG0ME4

Thanks! Did you guys solve it like the solution written in the description? :o Because that's unintended.

Really nice test chamber... Thumbs up

:) nice !