Another update

This may not look much, but I'm actually on the way to cracking a couple of things I'd been hoping to get my head around, so that's a good thing.

Curved faces on a single cell

Curved windows in faces

Plus my funny frame thing from before (which might get the chop pretty soon in favour of something more sophisticated)

 

...and a bit of cheating in modo to get this bevel effect on the faces (heading in the direction of triangular beams / trusses)