Progress on a mining attachment. Each rig holds 3 ore containers and multiple rigs can be connected train style. A traveling "ring" allows access to each container. This is not complete yet.
Interesting concept, it's just too bad you chose a so dark color scheme: it makes hard to see the details of the texture. Also, the rails on which the ring runs looks a bit weak: maybe you could fix this in adding a third one (I assume there's already a second rail on the other side of the ship) on the top or on the bottom, this would let an opening to remove the containers...
Interesting work anyway: thanks for sharing