This is a short run down on the Fume Cabinet I built for my 3D Printer.
I found printing with the window open insufficient for clearing the room of the printer fumes, as well as introducing warping to the prints on the print bed as the ambient temperature dropped.
I'd highly encourage anyone using their 3D Printer on the desk next to them to at least ensure that they have adequate ventilation, if not a fume extraction system.
Plus, it's a little quieter, and looks awesome with the LED strip lighting!
Remember to allow sufficient room around the printer not just for the moving parts, but also to access cables and parts that require adjustment, such as the end stops. Also, unlike a Makerbot, the build envelope of the Reprap Prusa Mendel isn't contained entirely within the framework of the printer. That is why I have such a steep angle on the screen on the front of my cabinet. With 25mm clearance at the front printer, I needed an 80° angle to clear the build envelope.