2013

Point your right thumb in the positive direction of the Z axis and curl your
fingers. Your fingers indicate the positive rotation direction about the axis.
You can define any UCS by specifying an origin and one or more rotations
around the X, Y, or Z axis.
Z Axis
Aligns the UCS to a specified positive Z axis.
The UCS origin is moved to the first point and its positive Z axis passes through
the second point.
U Commands | 1111