Hi Phil, As the others have said, porting to a different platform can be plagued with all sorts of issues, even when you start out with that in mind. We've just purchased a CNC + Software (can't tell you make just now) and paid a lot for it, so I'm not certain that price is a problem... But a very big consideration was the ability to read existing CAD files - we use Desktop pro (because it's free to schools)- and the quality of the rendered product. Some units required a lot of secondary manufacturing/finishing. The availability of PCB & 3D (free/cheap?) cad on the platform might be an issue too unless the import filters existed - these are not necessarily platform issues. Not sure about the others, but apart from Eagle Lite (for PCB) I've not seen any 3D (technical) CAD for LINUX that was free. Please tell me otherwise because I've been looking for a Desktop pro / TurboCad clone. Kind regards Adrian