Fanuc Symbol CAPi T Operators Manual

Y–AXIS FAPT FUNCTION
B–63304EN/02
4. DEFINING MACHINING
(MENU 4)
572
e–1. Roughing/finishing
Roughing for contouring of type 1 or 3 is executed to leave
a finishing allowance around the defined part figure.
Position of the tool used
for roughing
Tool path : Left side viewed from
the start point of figure definition
Tool path : Right side viewed from
the start point of figure definition
Contour produced by roughing
WARNING
The cutting position (CP), viewed from the point at which the
definition of a part figure element is started, represents the
difference between outer surface contouring and inner
surface contouring.
Outer surface contouring:
The cutting position is on the left, viewed from the start
point of figure definition (CP = 1).
Inner surface contouring:
The cutting position is on the right, viewed from the
start point of figure definition (CP = 0).
If cutting is performed for the contour of a defined figure
element, outer surface contouring cannot be differentiated
from inner surface contouring.
e–2. Approach/escape method
The following four approach/escape patterns are supported
for contouring:
(1)Direct approach (escape)
(2)Tangent approach (escape)
(3)Normal approach (escape)
(4)Approach (escape) along a tangent circle

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