Push Modifier
 
 
 
Command entry: Modify panel Make a selection. Modifier List Object-Space Modifiers Push
Command entry:Make a selection. Modifiers menu Parametric Deformers Push

The Push modifier lets you "push" object vertices outward or inward along the average vertex normals. This produces an "inflation" effect that you can't otherwise obtain.

Positive and negative amounts of push applied to an object.

Interface

Push Value

Sets the distance in world units by which vertices are moved with respect to the object center. Use a positive value to move vertices outward, or a negative value to move vertices inward.