HEIDENHAIN TNC 640 (34059x-04) - Manual (Page 223)

Path contours - Cartesian coordinates 6.4
6
TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 3/2014
223
Example: Full circle with Cartesian coordinates
0 BEGIN PGM C-CC MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-20
Definition of workpiece blank
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL CALL 1 Z S3150
Tool call
4 CC X+50 Y+50 Define the circle center
5 L Z+250 R0 FMAX Retract the tool
6 L X-40 Y+50 R0 FMAX Pre-position the tool
7 L Z-5 R0 F1000 M3 Move to working depth
8 APPR LCT X+0 Y+50 R5 RL F300 Approach the starting point of the circle on a circular arc
with tangential connection
9 C X+0 DR- Move to the circle end point (= circle starting point)
10 DEP LCT X-40 Y+50 R5 F1000 Depart the contour on a circular arc with tangential
connection
11 L Z+250 R0 FMAX M2 Retract the tool, end program
12 END PGM C-CC MM