I have the ability to create basic a 3D, line based design tool. Though I would have to read up on NURBS. Maybe QCad has the potential to grow in that direction.

I just still tend to hope that it may be implemented in something fully featured like Blender, which is more geared towards artistic modelling and replaces stuff like 3dsMAX and Maya. It does have some plug-ins to support precision drawing, but last time I checked, I was still not convinced of using it in an AutoCAD like workflow.