A quick look at strategies for identifying and cleaning up problematic models in Maya and 3D. How to display components and evaluate a polygon How to recreate a clean file header in a Maya scene by creating a new scene and importing the previous scene into it. Using Mesh Cleanup... to confirm if meshes are two-manifold or non-manifold and to purge lamina faces. How to correct for group objects and realign geometry after it has been skewed based on scale operations. And a bunch of other techniques.