This is the complete helm assembly for the USS Constitution. I created these manually in 3D Builder using the actual ships drawings.
Included is a full wheel and a half wheel version if you prefer to print it that way and join the halves.
You will need the rope fittings and cover, 2 complete wheels, 2 wheel supports and the wheel barrel that fits between the wheels.
I have included a complete helm file so you can see how these are arranged and fit together.
I have these scaled pretty large as I am building a working model of the steering gear including the helm, rudder, tiller, blocks and pulleys, pintels, gunions and beams and needed them this size, but they can certainly be rescaled.
These all require supports except the half wheel.