No Carrara does not. Carrara does not recognize work planes or edges/faces for mating. It does have constraints for motion types like slider, single axis and such bot you would have to place the item manually and then constrain it's motion.

So Motion in SWX is better in this situation ?

Edit : Michael, Have you ever work on a project like this ?

Yeah, Carrara is just a polygon and a bit of Splines application, its mostly for 3D graphics, and animations via rigging. SW and Carrara are not backward compatible.

I suggest it is pretty hard to find a good, genuine, value for money, comprehensive all round. easy to learn/use 3D app that, for most average users, can be improved on than that of Carrara ,(Pro especially!)

It makes an ideal companion to MoI.

Brian