The 200x200 is travel, most of the work will be a lot smaller. Materials primarily aluminium, some PCBS, jewelery and the odd difficult part such as a titanium air turbine 22mm in dia (4 axis work). Cutters uniformly tiny and cutter speeds high - though titanium will present problems if the computer occasionaly stops to pray to Redmond. I will spend this evening looking at profile rails.

Mike