Blending Between Points
- 
                                Enter the  Blend tool. Blend tool.
- Select the first point or vertex.
- Ctrl+click to select multiple points or vertices.A blend preview displays between the first two points. 
- Ctrl+Select more points or vertices.
- To make the curve tangent:- Ctrl+click neighboring edges of the vertices if you want the blend curve to begin tangent to one or more edges. 
- Alt+click one or more neighboring faces if you want the blend curve to be tangent to the face(s). 
 
- (Optional) Modify the blend by selecting from the following options:- Rotational blend: Create arcs whenever possible during the creation of a blend. You must have selected points rotated around a common axis.
- Periodic blend: Go all the way around when blending. You must have selected three or more points rotated around a common axis, that also span an arc greater than 180 degrees. 
- Ruled sections: Create straight line segments when you blend between three or more points. 
 
- 
                                Click Complete
                                         to create the blend. to create the blend.