HEIDENHAIN TNC 320 (340 55x-03) - Manual (Page 370)

370 9 Programming: Subprograms and Program Section Repeats
9.6 Pr
ogr
amming Examples
9.6 Programming Examples
Example: Milling a contour in several infeeds
Program sequence
„ Pre-position the tool to the workpiece surface
„ Enter the infeed depth in incremental values
„ Contour milling
„ Repeat downfeed and contour-milling
0 BEGIN PGM PGMWDH MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-40
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL CALL 1 Z S500 Tool call
4 L Z+250 R0 FMAX Retract the tool
5 L X-20 Y+30 R0 FMAX Pre-position in the working plane
6 L Z+0 R0 FMAX M3 Pre-position to the workpiece surface
X
Y
100
100
20
75
30
50 20 75
R1
5
R18
R15