OK...so...rabbit hole time.
I tried printing a sample, and I've had to break the bunk-beds out as separate printable items.
I also decided that building zone 5D2 wasn't good enough...so I did 5D1 as well, then decided to go up a level...so I now have zones 4D and 5D being printed.
In zone 4D (on the left) you can see the compartment in the center for the 2x Diesel Generators (300Kw)
Interestingly, these ships are designed without many fore/aft entry points between the main zone bulkheads. There is one water-tight Hatch leading aft in zone 4D2. Every other space is accessed from above.
Almost like there was a real concern about watertight integrity against potential battle damage.
So...how far down this rabbit hole will I end up going? Good question. If I do zone 3D, then I get into some more workshop spaces, then zone 2D moves up to the cable deck level and the ship's canteen.
Going down to zone 6D gets me into the SONAR (ASDIC) suite, which for me, as a SONAR tech is VERY interesting!!!