HEIDENHAIN TNC 426 (280 476) - Manual (Page 175)

148 6 Programming: Programming Contours
6.4 P
a
th Cont
ours
—
Car
tesian Coor
dinat
e
s
Example: Circular movements with Cartesian coordinates
0 BEGIN PGM CIRCULAR MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-20 Define blank form for graphic workpiece simulation
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL DEF 1 L+0 R+10 Define tool in the program
4 TOOL CALL 1 Z S4000 Call tool in the spindle axis and with the spindle speed S
5 L Z+250 R0 F MAX Retract tool in the spindle axis at rapid traverse FMAX
6 L X-10 Y-10 R0 F MAX Pre-position the tool
7 L Z-5 R0 F1000 M3 Move to working depth at feed rate F = 1000 mm/min
8 APPR LCT X+5 Y+5 R5 RL F300 Approach the contour at point 1 on a circular arc with
tangential connection
9 L X+5 Y+85 Point 2: first straight line for corner 2
10 RND R10 F150 Insert radius with R = 10 mm, feed rate: 150 mm/min
11 L X+30 Y+85 Move to point 3: Starting point of the arc with CR
12 CR X+70 Y+95 R+30 DR- Move to point 4: End point of the arc with CR, radius 30 mm
13 L X+95 Move to point 5
14 L X+95 Y+40 Move to point 6
15 CT X+40 Y+5 Move to point 7: End point of the arc, radius with tangential
connection to point 6, TNC automatically calculates the radius
X
Y
95 5
95
5
85
40
40 30 70
R10
R30