BOUNDARY
CONDITIONS
Potential
Data -> Conditions -> Surfaces -> Potential 0.0 (or
Ground in ATILA 5.2.4 or higher version) -> Assign the top
and bottom surfaces -> Forced Potential 1.0 -> Assign the
center surface
Polarization/Local
Axes
Data -> Conditions -> Volumes -> Geometry -> Polarization
(Cartesian) -> Define Polarization (P1) (0,0,1) direction
Choose X and Angle -> Define X axis -> Click two points
to define X axis -> Choose the suitable Cartesian P1 direction
(z axis) -> Escape
Or: Choose 3PointsXZ -> Define X axis by putting (1,0,0)
-> Then define Z axis by putting (0,0,1) -> Escape
Data -> Conditions -> Volumes -> Geometry -> Polarization
(Cartesian) -> Define Polarization (P2) (0,0,-1) direction
Assign Polarization (Local-Axes P1 and P2) -> Choose the
volume -> Finish
MESHING 
Cant view is not very suitable to Meshing
-> View -> Rotate -> Plane xy (original)
Mapped Mesh
Meshing -> Structured -> Volumes -> Select all volumes
-> Then Cancel the further process
Meshing -> Structured -> Lines -> Enter number to divide line -> Choose
2 &8 for the
lines -> Generate