A note to newbie puzzle creators: Cutting corners.
P.P.S. I think high-energy pellets should be on the PTI as well.
P.P.P.S. I registered here cuz I saw the thread about PTI maps, is it stickied? It would be fantastic if it was.
No. It's in the UCP.
Plasma balls are removed from Portal 2. You can add them back in mostly using some material hacks though. Look in the "Other" section in the download database, someone uploaded the files you need.
There is a "pimp your puzzle creator map" sticky in the Release board. There is a "show off your WIP puzzle creator map" sticky in this board. You can also just publish your map like normal through the Download Database; there are super stickies on how to do this in the Release board if you don't know how.
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That map is insane. I found so many ways to break it that I'm going to list it:
list of "alts"
Ya, that is why you want to make sure there are not super-major unintended solutions that will spoil the test.
Aperture Science: We do our science asbestos we can!
It did. They talk about it in the commentary. One of the playtesters discovered it and they left it in because it was only obvious to a very small amount of people.
There are unintended solutions to pretty much every Valve map. 
That solution for chamber 14 is obviously intended, the proof is that the time to beat is 10 seconds, absolutely impossible with the "normal" solution 
Well, it wasn't originally intended, but Valve were aware of it and hence included it in the challenge mode. I believe it's discussed in the commentary, which I highly recommend playing through if you haven't already.
My maps: Double Bill / Jam / Oval Window / Gymnasium / Gymnasium Part 2 / Minimalism (collection) / Resolution
All feedback welcome!
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Can't stress this enough. I built a map and was so pleased with myself, and then my fiance broke it with one portal. I was very unhappy - but it did give me insight into how other people play the maps.
When you can, have other people play your maps - they will think differently and solve the puzzle in ways you didn't expect - which can be awesome or disasterous!
Well, duh.
I laughed for like 5 minutes
When you can, have other people play your maps - they will think differently and solve the puzzle in ways you didn't expect - which can be awesome or disasterous!
Did you release it? If so, where can I find it?