What is nonmanifold geometry?

[breakanate]

hey guys i am modeling some earphones and i can't continue to finish off my model because when i try to convert the polygons to subdivisions, I get an error that tell me that it cannot convert nonmanifold gemotry. Can anyone tell me what that is please thank you.

[Muktinsh]

Hi, here you can get info
http://mrl.nyu.edu/publications/nonm...onmanifold.pdf

[laxman]

This should help:

http://www.digitaltutors.com/digital_tutors/knowledgebase.php?faq_id=448&category_id=&parent_id=



I think muktinsh means:

http://mrl.nyu.edu/publications/nonmanifold/nonmanifold.pdf