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6 sl c y cles – HEIDENHAIN TNC 426 (280 476) User Manual

Page 330

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HEIDENHAIN TNC 426, TNC 430

303

8.6 SL c

y

cles

Example: Pilot drilling, roughing-out and finishing overlapping contours

0 BEGIN PGM C21 MM

1 BLK FORM 0.1 Z X+0 Y+0 Z-40

Define the workpiece blank

2 BLK FORM 0.2 X+100 Y+100 Z+0

3 TOOL DEF 1 L+0 R+6

Define tool: drill

4 TOOL DEF 2 L+0 R+6

Define the tool for roughing/finishing

5 TOOL CALL 1 Z S2500

Call the drilling tool

6 L Z+250 R0 F MAX

Retract the tool

7 CYCL DEF 14.0 CONTOUR GEOMETRY

Define contour subprogram

8 CYCL DEF 14.1 CONTOUR LABEL 1 /2 /3 /4

9 CYCL DEF 20.0 CONTOUR DATA

Define general machining parameters

Q1=-20 ;MILLING DEPTH

Q2=1 ;TOOL PATH OVERLAP

Q3=+0.5 ;ALLOWANCE FOR SIDE

Q4=+0.5 ;ALLOWANCE FOR FLOOR

Q5=+0 ;WORKPIECE SURFACE COORD.

Q6=2 ;SET-UP CLEARANCE

Q7=+100 ;CLEARANCE HEIGHT

Q8=0.1 ;ROUNDING RADIUS

Q9=-1 ;DIRECTION OF ROTATION

X

Y

35

50

100

100

16

16

R25

65

16

R25

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