defining points in 3d, changing coordinates system ABAQUS script

hey guys please help me, 

 i need to define my revolution points i.e. the circle by x.y.z. coordinates and i dont know how to do that.

 if that is not possible please tell me how can i change the system to cyclindrical coordinates please.

 i
have to draw a spring and for that i know the points in cylindrical
system. i cant define in 2d as for less than 90 degree it will not be in
xz or you know like that plane. it will also be helful to define plane
if i can.

like how it chooses f1[1] sketch plane and all, and can i change that by changing coordinates how please help.