Example: Circular Movements With Cartesian Coordinates - HEIDENHAIN TNC 620 User Manual

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Example: Circular movements with Cartesian coordinates

0 BEGIN PGM CIRCULAR 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 CALL 1 Z S4000
4 L Z+250 R0 FMAX
5 L X-10 Y-10 R0 FMAX
6 L Z-5 R0 F1000 M3
7 APPR LCT X+5 Y+5 R5 RL F300
8 L X+5 Y+85
9 RND R10 F150
10 L X+30 Y+85
11 CR X+70 Y+95 R+30 DR-
12 L X+95
13 L X+95 Y+40
14 CT X+40 Y+5
15 L X+5
16 DEP LCT X-20 Y-20 R5 F1000
17 L Z+250 R0 FMAX M2
18 END PGM CIRCULAR MM
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Programming contours | Path contours — Cartesian coordinates
Define the workpiece blank for the machining simulation
Tool call with spindle axis and spindle speed
Retract the tool in the spindle axis at rapid traverse FMAX
Pre-position the tool
Move to working depth at feed rate F = 1000 mm/min
Approach the contour at point 1 on a circular path with
tangential connection
Program the first straight line for corner 2
Program a rounding with R = 10 mm, feed rate F = 150 mm/
min
Move to point 3: starting point of the circular path CR
Move to point 4: end point of the circular path CR, with radius
R = 30 mm
Move to point 5
Move to point 6: starting point of the circular path CT
Move to point 7: end point of the circular path CT, arc with
tangential connection to point 6; the control calculates the
radius automatically
Move to last contour point 1
Depart contour on a circular path with tangential connection
Retract the tool, end program
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022