Re-Import obj and replace existing I have an obj created from Qubicle Constructor.  I am able to import this into Blender just fine.  The workflow I want is modeling in Qubicle and animation in Blender.  I then try and make changes to my model and export again and then import again into blender but I get suplicate objects in my blender scene.  

Example, on the first import I may have a mesh called "Calf_Left", after re-import I get "Calf_Left.001".  Is there a way to get this worklow to not create duplicate meshes and instead just replace whats there if if finds one with the same name?
You could import your externally created models into separate .blend files and link them into a master .blend file containing the scene instead of directly importing them. This way the linked files can be refreshed.

The basic idea:



I uploaded a working sample here

WARNING: The script should not be started from your scene file it first deletes all content. You would need to invoke it from command line see: 
Put the following command in a batch file conv.bat 

"C:\Program Files\Blender Foundation\Blender\blender.exe"  --background --python batch_convert.py
pause


Save the python script in batch_convert.py

import os
import bpy

# put the location to the folder where the objs are located here in this fashion
path_to_obj_dir = os.path.join('C:\\', 'OBJ')

# get list of all files in directory
file_list = os.listdir(path_to_obj_dir)

# get a list of files ending in 'obj'
obj_list = [item for item in file_list if item[-3:] == 'obj']

# loop through the strings in obj_list 
for item in obj_list:
    # select all object
    bpy.ops.object.select_all(action='SELECT')
    # delete selected
    bpy.ops.object.delete(use_global=True)
    # import obj
    path_to_import = os.path.join(path_to_obj_dir, item)
    bpy.ops.import_scene.obj(filepath = path_to_import)
    # rename
    for obj in bpy.context.selected_objects:
        obj.name = item[:-4]
        print(dir(obj))


    # write blend
    path_to_export = os.path.join(path_to_obj_dir, item[:-4] + ".blend")
    print(path_to_export)
    bpy.ops.wm.save_as_mainfile(filepath=path_to_export, check_existing=False )


After exporting an .obj you would only run the batch file and the linked .blend files will be updated.

Related:


How do I reload a linked blender file?
Video Tutorial on appending and linking
Wiki Linked_Libraries