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5 p a th cont ours—p o lar c oor dinat e s – HEIDENHAIN iTNC 530 (60642x-03) User Manual

Page 247

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HEIDENHAIN iTNC 530

247

6.5 P

a

th cont

ours—P

o

lar

c

oor

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+

Enter the radius compensation according to the table

above.

Example NC blocks: Thread M6 x 1 mm with 4 revolutions

Y

X

Z

25

40

5

270°

R3

CC

Always enter the same algebraic sign for the direction of
rotation 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 of
-99 999.9999° to +99 999.9999°.

12 CC X+40 Y+25

13 L Z+0 F100 M3

14 LP PR+3 PA+270 RL F50

15 CP IPA-1440 IZ+5 DR-