Last year I made a lot of progress with a 3D model of an airship (although I made the nacelles too big, they have the floor area of my apartment). I'd like to continue, but #FreeCAD has started to struggle linking the subassemblies together.

Changing any subassembly means that the three top level assemblies have to be reconnected, and though it means only two joins, that process takes twenty minutes - and I'm only halfway through creating the model.

Looking at the hugely detailed ships in games like Elite Dangerous, there has to be a more appropriate tool I can use?

I butchered a three.js example to give me a fly-through viewer, eventually I want to be able to walk through the complete model, with internal and external views.

Here's what I have so far: https://splinterton.com/airship.html