Moving the Centre

The centre point defines the position around which an object is rotated or scaled. By default, the centre point of an object is at its centre, but can be adjusted. The manipulator position of an axis represents the position of the centre in 3D space. To move the center of an axis:

1. In the Tools box, choose Select, or press the M key.
2. Select the axis to re-centre. This displays its manipulator.
3. In the Tools box, choose Centre, or press the Y key.
4. Drag the manipulator where you need the centre: the manipulator is now offset from the actual axis. The manipulator is what you use to transform an axis, any transformation to the axis is performed from the manipulator's point of view.

Transformations are:

Move

Moves the object parallel to the centre.

Scale

Scales the object from or to the centre.

Rotation

Rotates the object around the centre point.