iam to 3ds conversion represents exchange of designs between Autodesk Inventor and 3ds Max, a topic well-covered on Internet, especially on Youtube. This might have been challenging in the past, but 3ds Max now supports direct import of .iam and .ipt files and no exchange format is needed. There are still some limitations of this import, covered on Autodesk website, but overall it is doable.
Except for Autodesk software, such export or conversion should nowadays be also doable with several 3rd party alternatives or dedicated converters.
Updated: August 16, 2023