We'll see how far I get with this one this winter... added structure in alignment slots by using 3mm square stainless bar and some carbon rod at strategic locations. the off axis 1" long segments of stainless bar that can only socket into place when the parts are aligned properly, worked really well in the stern
There is a lot of innovation here! The "V" pattern in the hull sections is a great idea to ensure alignment. All the reinforcement locations as you mention are great. And the partial filling of the windows to make printing easier and in some cases act like a blast shield is really cool!
Also for each rib the overhanging part that would require support is printed separately. . Produces stronger ribs that can't propagate cracks to the main hull. Potentially serviceable if glued in with e6000 or similar.
Also, the v shapes at the print bottom are only there as secondary alignment features, the primary job is warp prevention at the bed. There is a relationship between chamber temp, bed temp, abs nozzle extrusion temp, and geometry that is complicated, and can result in unusably warped parts. For the thicker regions I try to not have more than 1 sq inch of area and no linear dim larger than about 1 inch. I can cheat that if the part is a bit more flexible like at the ribs, but even then I will put a small no filled knotch to break up warp prone regions
