The tutorial  pointed to in  the thread is helpful. That kind of stuff... though this model bashing tutorial features the kind of arbitrary nurnie stuff that I want to avoid if I can. Really it is interface design I want help on... for instance these floating projected panels would probably need a backing to be readable, if you had a control panel would it basically only have a track ball or would buttons and switches be safer? Wouls an airlock have more than open, close, safty check, and reset? How would sensor data be represented? How would quantifiable data be represented...bar graphs? I guess my question is ergonomics and functionality... right now a lot of the appliences we have a empty housings, that is something to think about. All the mecahnical sytems in an airconditioner are gone now but the compressor and the coils. More and more often I open applieces to find the housing empty except for a printed Circuit Board screwed in one corner... so the housing are non-functional design I guess.