So today at school, I was watching our dimension (stratasys) elite printer, print a large print with ZERO warping. Obviously stratasys knows the tricks (probably patented though) to keeping a perfect print. I noticed the build plates were made out of a plastic that is a little rough on top and is heated. Also I’m sure the heated build chamber contributes a huge factor. My question is: What makes the build plate work so damn well??? If we can find that out, we could possibly apply this to our printers.
You hit it in your post: heated build plate + heated build chamber == controlled, even cooling of the part. The surface of the build plate being roughened for adhesion also helps (some use a light sanding of blue tape for the same reason).
Find out how much this plastic plate cost, no we don’t need this 
Some people build their plastic plate on the fly, it’s called a raft. What we really need is better remove able supports, which requires better slicing.
Tesa glue stick + an enclosed build chamber works wonders for me. Although warp will always depend on the exact model geometry and size.
The build plates are ABS. The printer puts down a sparse layer of model material onto the build plate. On top of that it then builds a raft of support material which the part gets built on. The raft on top of sparse model material is what makes the parts easily removable from the build plate.
The chamber keeps the parts at consistent temperatures everywhere which greatly reduces stresses due to thermal contraction. I have had a couple of parts that bonded poorly to the plate and they still curled on large flat areas. But this is rare and usually caused by an old build plate or some other factor. And yes, there is a patent on the heated chambers.
@Ben_Malcheski thanks for the info! How hot do you think is the chamber
I personally checked this printer out where I used to work, they had a dimension elite also, it uses a PVA bonding material to go down before the ABS on the plastic build platform which definitely reduces on warping and the ABS they use is called ABS-Plus, I found out the formula it is MG94 and it is manufactured specially for them. I have had incredible results with kapton tape and ABS juice, but be careful not to use too much ABS juice because your parts will not come off, even of you put the plate in the freezer, the only way to remove them is to peel the tape up, you want to put just a haze on the tape and you should be good.