Case 1:

Roller Deflection

Case 2:

Convex Roller or Roll with Traction. Concave Roller or Roll Slipping

Case 3:

Nips with Low Edge Loads

More Symmetrical Variations

Nearly any symmetrical variations of the web or equipment will create minor or major CD errors.

Case 4:


Case 5:

Baggy Lines

Case 6:

Width Expansion in Span