HEIDENHAIN TNC 320 User Manual page 190

7.10 Programming Examples
Example: Roughing-out and fine-roughing a pocket
0 BEGIN PGM C20 MM
1 BLK FORM 0.1 Z X-10 Y-10 Z-40
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL CALL 1 Z S2500
4 L Z+250 R0 FMAX
5 CYCL DEF 14.0 CONTOUR GEOMETRY
6 CYCL DEF 14.1 CONTOUR LABEL 1
7 CYCL DEF 20 CONTOUR DATA
Q1=-20 ;MILLING DEPTH
Q2=1 ;TOOL PATH OVERLAP
Q3=+0 ;ALLOWANCE FOR SIDE
Q4=+0 ;ALLOWANCE FOR FLOOR
Q5=+0 ;SURFACE COORDINATE
Q6=2 ;SET-UP CLEARANCE
Q7=+100 ;CLEARANCE HEIGHT
Q8=0.1 ;ROUNDING RADIUS
Q9=-1 ;DIRECTION
190
Definition of workpiece blank
Tool call: coarse roughing tool, diameter 30
Retract the tool
Define contour subprogram
Define general machining parameters
Fixed Cycles: Contour Pocket