Hello J have modelisé an engine under inventor, and would like to get back this file together under 3ds max. No concern(marigold) for l to import in 3ds max, put has by the constraints. Indeed, when j import my file under 3 ds, the differentes pieces of my set(group) is imported well, but l together n has more constraint and relations organized under inventor. There would be he(it) a "trick" so that my set(group) to inventor keeps(guards) its constraints under 3 ds max? Thank you for advance... Good day.