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8 coor di na te t ra n s for m ati on cy cle s – HEIDENHAIN TNC 426 (280 476) User Manual

Page 362

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HEIDENHAIN TNC 426, TNC 430

335

8.8

Coor

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Example: Coordinate transformation cycles

Program sequence

n

Program the coordinate transformations in
the main program

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For subprograms within a subprogram, see
“Subprograms,” page 343

0 BEGIN PGM KOUMR MM

1 BLK FORM 0.1 Z X+0 Y+0 Z-20

Define the workpiece blank

2 BLK FORM 0.2 X+130 Y+130 Z+0

3 TOOL DEF 1 L+0 R+1

Define the tool

4 TOOL CALL 1 Z S4500

Tool call

5 L Z+250 R0 F MAX

Retract the tool

6 CYCL DEF 7.0 DATUM SHIFT

Shift datum to center

7 CYCL DEF 7.1 X+65

8 CYCL DEF 7.2 Y+65

9 CALL LBL 1

Call milling operation

10 LBL 10

Set label for program section repeat

11 CYCL DEF 10.0 DREHUNG

Rotate by 45° (incremental)

12 CYCL DEF 10.1 IROT+45

13 CALL LBL 1

Call milling operation

14 CALL LBL 10 REP 6/6

Return jump to LBL 10; execute the milling operation six times

15 CYCL DEF 10.0 DREHUNG

Reset the rotation

16 CYCL DEF 10.1 ROT+0

17 CYCL DEF 7.0 DATUM SHIFT

Reset the datum shift

18 CYCL DEF 7.1 X+0

19 CYCL DEF 7.2 Y+0

X

Y

65

65

130

130

45°

X

20

30

10

R5

R5

10

10

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