Spent a few hours today working on a model of Palais Savoye. Just about at the point now where the models of all the various Savoye derivatives can be placed within the skeleton Palais. I basically had to carve out a corner of the Palais's undulating roof plane, so, yes, lots of x, y and z manipulation.
Up to now I've just been manipulating 2D data to achieve these elevations:
And, of course, a model will enable much more interesting views (into an otherwise virtual museum of architecture).