Acrylic takes a little bit of know how to work with. I wonder if they did it in house or if they had another shop do them? I used to work at a place where our main product, a wafer scrubber, used a flame polished all acrylic enclosure like that. I used to work with the shop that did the acrylic a lot and saw some of the crazy stuff they could build. Always wanted them to build me a sub cabinet for mine.