
B–63294EN/02
2. MACHINING MENU DESCRIPTIONS
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5. Arc
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B MOVEMENT
DIRECTION
(1) Screen explanation
When the [
] or [ ] soft key is pressed on the figure selection screen, this screen appears.
(2) Explanation of input items
B : DIRECTION OF ROTATION
Select between the [ ] and [ ] soft keys to specify the direction of rotation of the arc. This item must
always be specified.
R : ARC RADIUS
Enter the radius of the arc.
I : ARC CENTER X COORDINATE
J : ARC CENTER Y COORDINATE
Enter the absolute X and Y coordinates of the center of the arc.
X : ARC END POINT X COORDINATE
Y/K:ARC Y/CENTER ANGLE Y
Enter the absolute X and Y coordinates of the end point of the arc. If only the arc Y/center angle (Y/K)
are entered, the center angle is handled as the center angle of the arc.
L : ARC CHORD LENGTH
Enter the length of the chord of the arc (straight distance between the start and end points of the arc)
Q : CIRCLE START POINT TANGENT ANGLE
Enter the angle of the slant of the straight line at the start point of the arc that is tangent to the circle
to be defined. The angle can be set in the range of 0° to 180°, with angle of the +X axis being assumed
0° and the counterclockwise direction being assumed as the positive direction.