Are drivers for the different 3D CAD packages (FreeCAD, ParaVIEW, etc) included in Ubuntu for 3DConnexion devices?
3DConnexion devices are known as 3D mice or spaceball (former name). The most widely used is the SpaceNavigator. 3DConnexion.com is the website.
There is an open source driver named spacenav. It's available through the libspnav0 package. FreeCAD supports it, but the package available in Ubuntu repositories has not been built with it. To use it, I suggest you add one of the FreeCAD PPA to update your FreeCAD to a version which supports those devices.
I don't know of other CAD apps supporting spacenav.