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Defining a circular arc – HEIDENHAIN iTNC 530 (340 49x-04) User Manual

Page 352

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352

8 Programming: Cycles

8.3 P

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tt

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n Definition P

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T

TERN DEF

Defining a circular arc

Bolt-hole circle center X

(absolute): Coordinate of

the circle center in the X axis.

Bolt-hole circle center Y

(absolute): Coordinate of

the circle center in the Y axis.

Bolt-hole circle diameter:

Diameter of the bolt-

hole circle.

Starting angle:

Polar angle of the first machining

position. Reference axis: Major axis of the active
machining plane (e.g. X for tool axis Z). You can enter
a positive or negative value.

Stepping angle/end angle:

Incremental polar angle

between two machining positions. You can enter a
positive or negative value. As an alternative you can
enter the end angle (switch via soft key).

Number of positions:

Total number of machining

positions on the circle.

Workpiece surface coordinate

(absolute ): Enter Z

coordinate at which machining is to begin

If you have defined a workpiece surface in Z not equal to
0, then this value is effective in addition to the workpiece
surface Q203 that you defined in the machining cycle.

Example: NC blocks

10 L Z+100 R0 FMAX

11 PATTERN DEF
PITCHCIRC1 (X+25 Y+33 D80 START+45 STEP30
NUM8 Z+0)