The arcs and ramps are measured relative to one of the following options:
Normal: Lead in/out moves are relative to the surface normal.
Horizontal: Moves are relative to a horizontal plane. Directions of the ramp could be right or left.
Horizontal left: This setting is most useful for uni-directional paths. It ensures a consistent left ramping.
Horizontal right: This setting is most useful for uni-directional paths. It ensures a consistent right ramping.
Vertical: Moves are relative to a vertical plane.
Default: The default for z level finish is horizontal, and vertical for all others.