The tool asks the user to define an axis with specified length. This axis can then be bent and all the target points will be deformed accordingly.
To bend a nurbs mesh:
1. Create a nurbs mesh consisting of 10 x 6 control points
2. Select the mesh and activate the bend tool. Then define bending axis along one of the edges of the nurbs mesh.
A bend deformator applied to a nurbs mesh
3. Switch the created bend object to point edit mode and drag the end point handle to bend the axis. The nurbs mesh is bent with the axis.
Bending radius can be specified numerically through the property window.