hi Joseph,
You can create the drawing views of Inventor model(assembly or part)in Autocad(DWG format) and keep the associativity between Autocad DWG and Inventor model. That is to say, Inventor model change will can update the Autocad DWG. However, there isn't a method to change the dimension in Autocad DWG and have it change Inventor model currently.
Steven Gao
Principal Quality Assurance Engineer