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Semi-Hard Chamber (First Chamber I made)

I know, but I want to make a bigger and better one.

You can make edits and republish. No need to delete. Just publish the edits. The game will know what to do.

Thanks for the advice guys I will try to make an even better one soon!

Didn't need the blue gel. Didn't need to deactivate the fizzler. Too many portal surfaces make it easy :)

DISCLAIMER:
Read my profile before reading the rest of my comment!

Semi-hard chamber? No. 3 portal placements to perform advanced fling maneuvers and I'm out of there! Are the laser fields blocking the exit and you need to deactivate them to exit (the ball)? Why not just hook that up to the exit directly? That would prevent me from exploiting the chamber so easily! You can stretch fizzlers and laser fields you know...

Your sense of hard concerns me. Many people confuse hard with frustrating or crippling. Portal 2, challenge the minds of your test subjects understand of how they think test elements will interact with each other rather than cripple their ability to exit. Here's maps that do that:
http://www.steamcommunity.com/sharedfiles/filedetails?id=378738534

Try my SP map?
http://www.steamcommunity.com/sharedfiles/filedetails?id=377129237
Try my COOP map?
http://www.steamcommunity.com/sharedfiles/filedetails?id=376181211

I don't know if the intended solution is semi-hard or not, because I skipped most of the puzzle. Once the sphere was placed and the laser field disabled, I simply got to a high place and flung to the exit. As with many first maps, this is possible due to excessive portal surfaces. Even grabbing the sphere and placing it was done in unintended ways, I think, due to exploitable portal surfaces. Please take this as constructive advice and not a personal affront.

Hope you will like it!