I use Blender for the purpose you ask for. It works very well for me. I use a .obj import/export Python script that one of the members of the Python & Plugins forum made. If you have any questions about Blender go to the forums over at the Blender site. Do a few tutorials and next thing you know you will have it. All programs have a learning curve some steeper than others. You can e-mail me at hardtwist2001@yahoo.com if you need some more help.