Did you know there’s now a free script to export OBJ 3D models from Poser and import the OBJ into the 2D animation software Anime Studio Pro? It’s been possible for some years now, but Smith Micro now offer the free Poser Python export script — along with two tutorial movies, one of which shows how to adjust the toon line weight on the object.
See also this 10 minute tutorial video, in which DutchWorkingMan shows how he uses Poser and Anime Studio Pro to get a believable cartoon cel-shaded look on an exported character.
The Smith Micro comic-book software Manga Studio can also apparently import OBJs — but in that case you simply drag the OBJ onto your Manga Studio canvas.
Update: script still available via Archive.org. Works for Poser 11 to Clip Studio.