127HEIDENHAIN TNC 426 B, TNC 430
6.6 Path Contours — FK Free Contour Programming
Example: FK programming 2
Define the workpiece blank
Define the tool
tool call
Retract the tool
Pre-position the tool
Pre-position the tool in the tool axis
Move to working depth
Approach the contour on a circular arc with tangential connection
FK contour:
Program all known data for each contour element
Depart the contour on a circular arc with tangential connection
Retract in the tool axis, end program
0  BEGIN PGM FK2 MM
1  BLK FORM 0.1 Z X+0 Y+0 Z-20
2  BLK FORM 0.2 X+100 Y+100 Z+0
3  TOOL DEF 1 L+0 R+2
4  TOOL CALL 1 Z S4000
5  L Z+250 R0 F MAX
6  L X+30 Y+30 R0 F MAX
7  L Z+5 R0 F MAX M3
8  L Z-5  R0 F100
9  APPR LCT X+0 Y+30 R5 RR F350
10  FPOL X+30 Y+30
11  FC DR- R30 CCX+30 CCY+30
12  FL AN+60 PDX+30 PDY+30 D10
13  FSELECT  3
14  FC DR- R20 CCPR+55 CCPA+60
15  FSELECT  2
16  FL AN-120 PDX+30 PDY+30 D10
17  FSELECT  3
18  FC X+0 DR- R30 CCX+30 CCY+30
19  FSELECT  2
20  DEP LCT X+30 Y+30  R5
21  L Z+250 R0 F MAX M2
22  END PGM FK2 MM
X
Y
30
30
R30
R20
60°
55
10
10
Gkap6.pm6 30.06.2006, 07:04127
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