Fixed point rotation

In three.js, in the obj+mtl model, the position of mesh is 0,0,0. How do you achieve an arc before and after a fixed point? And the fixed point can not be moved

How is your model composed, is this switch in your Screenshots a separate child model or manually added/placed in js? For example, if i use OBJ from C4D i only get a single merged mesh without separate childs, is your cockpit composed of multiple single objects?

What are the Screenshots showing exactly, wrong axis?

My cockpit is made up of multiple mesh, and they are all obj’s children