HEIDENHAIN iTNC 530 (340 49x-04) - Manual (Page 266)

266 6 Programming: Programming Contours
6.5 P
a
th Cont
ours—P
o
lar Coor
dinat
e
s
Programming a helix
 Polar coordinates angle: Enter the total angle of
tool traverse along the helix in incremental
dimensions. After entering the angle, specify the
tool axis with an axis selection key.
 Coordinate: Enter the coordinate for the height of the
helix in incremental dimensions.
 Direction of rotation DR
Clockwise helix: DR–
Counterclockwise helix: DR+
Example NC blocks: Thread M6 x 1 mm with 5 revolutions
Y
X
Z
25
40
5
270°
R3
CC
Always enter the same algebraic sign for the direction of
rotation DR and the incremental total angle IPA. The tool
may otherwise move in a wrong path and damage the
contour.
For the total angle IPA, you can enter a value from –5400°
to +5400°. If the thread has more than 15 revolutions,
program the helix in a program section repeat (see
“Program Section Repeats,” page 582).
12 CC X+40 Y+25
13 L Z+0 F100 M3
14 LP PR+3 PA+270 RL F50
15 CP IPA-1800 IZ+5 DR-