Any issues associated with manufacture of a part are identified and highlighted on a part rendering. A software method and system then uses a visual change cue on the part rendering for communicating the manufacturability issues to the customer. The preferred visual change cue is a throbbing of the highlighting of the manufacturability issue, with the throbbing occurring in both color intensity and size. The part rendering depicts the part translucently, so throbbing manufacturability issues can be readily identified even if obscured behind a more-forward face of the part.