Programming Contours | Path contours Cartesian coordinates
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HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017
Example: Circular movements with Cartesian
coordinates
0 BEGIN PGM CIRCULAR MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-20
Define the workpiece blank for graphic workpiece simulation
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL CALL 1 Z s4000
Call the tool in the spindle axis and with spindle speed
4 L Z+250 R0 FMAX
Retract the tool in the spindle axis at rapid traverse FMAX
5 L X-10 Y-10 R0 FMAX
Pre-position the tool
6 L Z-5 R0 F1000 M3
Move to working depth at feed rate F = 1000 mm/min
7 APPR LCT X+5 Y+5 R5 RL F300
Approach the contour at point 1 on a circular arc with
tangential connection
8 L X+5 Y+85
Point 2: First straight line for corner 2
9 RND R10 F150
Insert radius with R = 10 mm, feed rate: 150 mm/min
10 L X+30 Y+85
Move to point 3: Starting point of the arc with CR
11 CR X+70 Y+95 R+30 DR-
Move to point 4: End point of the arc with CR, radius 30 mm
12 L X+95
Move to point 5
13 L X+95 Y+40
Move to point 6
14 CT X+40 Y+5
Move to point 7: End point of the arc, circular arc with
tangential connection to point 6, the control automatically
calculates the radius
15 L X+5
Move to last contour point 1
16 DEP LCT X-20 Y-20 R5 F1000
Depart the contour on a circular arc with tangential
connection
17 L Z+250 R0 FMAX M2
Retract the tool, end program
18 END PGM CIRCULAR MM
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