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The
moving
direction
of the tool
along
the circle is as follows.
G02: Clockwise
(
CW
)
G03: Counter clockwise
{
CCW
)
X
7.
Y
irj
:«e\
\
l
;
A
\
x
7
Y
XY
plane
Mi
17i
YZ
plane
Mil!*)
ZX
plane
Mi
INI
Fig. 2.4.4
(2)
Normally,
when circular interpolation
(G02.G03)
is
to
be programmed.
the
plane
of
interpolation
should be
specified
in advance with
G17.G18
or
G19.
G17: XY
plane
or
Xo- ,X/J
plane
G18: ZX
plane or Z
a
Z(3 plane
G19: YZ
plane or
Ya
.Yfi
plane
The -Uh
axis or 5th axis should be
linear axis.
In addition
to
the
plane
of circular
interpolation,
these G codes
specify
planes
for tool radius
compensation (G41,
G42).
If
no
selection is made
to
the
contrary,
XY plane
(G17)
is selected
automatically immediately
after
switching on
the
power
supply.
-
45
-
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