I think I need conceptual help. I'm sure Fusion can do this, but it hasn't clicked with me how to approach the problem yet.
So, this is initially a torus. Then its inner half got hollowed out by a cutout revolve. Think of the selected (blue) inner curved surface as the "floor", the short rails on the sides of the floor as "walls". I need to construct a roof over the floor. The roof is a repeating pattern, so I really only need to construct one segment and then replicate it somehow.
So, each roof segment should start and end with an arch of the same shape as the 2d sketch the torus was created from that can be seen on the right, but with some depth to make it 3d of course. Between the arches should be a pattern of hexagons.
Another way to think of this is, imagine the exterior torus surface is not cutout and is whole. I would need to carve its surface in such a way that there is a a hexagonal pattern between two "roof arches". And the roof would perfectly follow the curvature of the torus surface.
I'm not sure which is better: building on top of an existing cutout like in my screenshot, or trying to cut the roof out on a whole surface? How do I make sure to preserve the original curvature of the torus for the roof? How do I even approach this problem? I seemingly need to build in 3d, but sketches are 2d, and this 2d <> curved 3d surface transition breaks my brain.
I know this looks horrible, but I tried to paint over the screenshot to visualize what I'm trying to achieve:
Roof arches every X meters, and between them the thin layer of lattice.
I don't expect anyone to provide a step by step tutorial, but at least please point me in the right direction - what tools should I be using? What's the conceptual approach here?
PS. Here is a version with just the interior hollowed out and the roof intact. Maybe it's really all about cutting out a pattern on that roof surface.
