[brlcad]

There was discussion a few years ago about adding CAD to the list of free software priority areas, to direct talent and energy where it's needed. That would likely help. Finding ways to leverage existing efforts too. BRL-CAD has been working bottom-up with a focus on analytic correctness, capability, hybrid representation. FreeCAD has been working top-down with a focus on usability and parametric interactive editing. Both will likely get there eventually tailored to different markets.

For what it's worth, BRL-CAD has over 450 full-time staff years of effort invested with ongoing dev funded by the U.S. Gov't. It was made open source specifically so that investment could be shared with the world, to help commoditize CAD like has been done for browsers and compilers. It's a long road to get there no matter what.