that’s very cool. I have curviloft! I guess I should use it. I did it using straight line segments and triangulation. It worked… sort of, but didn’t give me the smooth transition that you got. I may do it over to get it more like what you did. I found another picture of the gun and it showed that it wasn’t as smooth curved as what you and I have been striving for. I did the multiplication a little differently, using copy, paste-in-place and then the -1 scaling. This keeps the new object directly connected where I want it.
Here’s the one of the guns from the USS New Jersey BB62, during construction in 1944. It’s the best view of that geometry that I could find.
I do not have to model the gun barrels since the 1/72 scale kit has metal turned barrels included, but nothing behind the exposed portions of the turret. That’s the part I’m going to model.
And here’s the next challenge. This is the Welin Step-thread breech for this gun. There are 20 threads on each of the 15 segments, and I’m not sure the best way to draw them. That said, at 1:72, the entire part is just a 1/4" in diameter and the threads probably would be invisible, and that’s if my resin printer could even resolve them.
