
B–63304EN/02
2. CAUTIONS FOR USING
Symbolic FAPT
VARIOUS FUNCTIONS AND
PRECAUTIONS OF Symbolic FAPT
387
(21) If the tool escapes to the position “blank figure inner surface +
clearance” in inner surface roughing
If the cutting end point (point C in Fig. 2.5 (ag)) is on the blank
figure, the specification states that the tool is to escape to the position
“blank figure inner surface + clearance” in the X–axis direction.
This is intended to keep the tool from interfering with the workpiece.
In other words, the tool is moved in the x–axis direction because it
is determined that if the cutting end point is on the blank figure, the
tool interferes with the blank figure when it escapes in the Z–axis
direction. Even if the cutting end point is on the blank figure,
moving the tool in the Z–axis direction will output a tool path where
the tool crosses the blank figure in the case shown in Fig. 2.5 (ah).
Part figure
Tool path
Point A
Blank figure
X
Z
Fig. 2.5 (ag)
Part figure
Tool path
Point A
Blank figure
X
Z
Fig. 2.5 (ah)