Mobiles again

It has sort of struck me that I have not really dealt with the three-dimensionality of the mobile, what I have proposed so far has been garbage and planes or layers work. This is going to have to be addressed in the near future, although all that hits me right now is 'space junk' which I could run through 123D catch. Also, when I imported this into archicad, it didn't want to scale upwards. the x and y axis scaling worked fine, however. Perhaps I should be doing this in Max?