Having had a great experience with my TAZ5 so far, I recently tried some large parts in ABS, and ran into trouble with splitting and warping. So I decided to try adding a cabinet to keep the part temperature up. To do this I used the box the TAZ came in, which made a huge difference, but was not very scientific, so decided to build one.
I had seen the design on the Lulzbot site, which I quite liked, but decided to go a slightly different route. The main differences would be a slightly smaller cabinet with material reels on the outside for easier swapping. And an air intake port for the electronics. Although the electronics are supposed to be happy up to 70 degrees, I'd rather pull in cool air to them. If this cools the cabinet too much then I may port the air out of the electronics box also.