BACK MACHINING FAPT
When defining a hole on a side surface, groove 1 on a side surface,
groove 2 on a side surface, and a groove on a cylindrical surface, enter
the figure data defined with reference to the front side no matter which
spindle is used in machining.
(3)Entering a part figure for Y–axis machining
When you are defining holes on concentric circles on an end face, a
hole on a straight line on an end face, a hole at an arbitrary point on
an end face, a pattern on an end face, or an arbitrary figure on an end
face, the following prompt is displayed:
End face position ..... FS = (0: front side, 1: Rear side)
This prompt requests you to indicate which end face the part figure is
on. If it is on the front end face, specify FS = 0. If it is on the rear end
face, specify FS = 1. If FS = 0 is specified, enter the figure data as
viewed from the front end face. If FS = 1 is specified, enter the figure
data as viewed from the rear side.
Images drawn in the front view are always those as viewed from the
front side. The front–side figure is drawn with solid lines, and the
rear–side figure, with dotted lines.
#1: Hole on the front side
#2: Hole on the rear side