well I modeled a simple character then I selected all the faces and extrude (without moving the manipulator) then I DeleteHistory and FreezeTransfromation so now the new faces are overlapping and then save the scene. Now the problem is how can I delete all the faces that are overlapping with my original model? Well I tried polygon cleanup and it didnt work is there a MEL script to cleanup overlapping faces ?
Did you change any of the settings in the cleanup tool? By default the tool doesn't remove faces with no area. Under the "Remove Geometry" section you need to turn on "faces with zero geometry area". If that doesn't work you might try adjusting the area tolerance.
its not a 0 area geometry just top on each other.... you need to manualy delete them sice maya doesent know wich one to delete.
but try merging the points with merge and then running cleanup with non manifold on it could help. Or then do a mel that iterates thru each surcae and deletes surfaces wth exact same location...