Bookmark - I just ordered an extruder printer from Amazon and downloaded Blender, SelfCAD, and Meshmixer which are all three free and supposed to get your .OBJ file ready for 3D printing.  Good thing I'm retired so I have time to learn the software parts I need.  If any of you can tell me which functions of any of the software mentioned (or another free software you have used) that help with converting from a Poser .OBJ to a printable model I would definitely appreciate your assistance.