HEIDENHAIN TNC 620 (73498x-01) ISO programming - Manual (Page 183)

HEIDENHAIN TNC 620 183
6.4 P
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Example: Circular movements with Cartesian coordinates
%CIRCULAR G71 *
N10 G30 G17 X+0 Y+0 Z-20 * Define blank form for graphic workpiece simulation
N20 G31 G90 X+100 Y+100 Z+0 *
N30 T1 G17 S4000 * Call tool in the spindle axis and with the spindle speed S
N40 G00 G40 G90 Z+250 * Retract tool in the spindle axis at rapid traverse
N50 X-10 Y-10 * Pre-position the tool
N60 G01 Z-5 F1000 M3 * Move to working depth at feed rate F = 1000 mm/min
N70 G01 G41 X+5 Y+5 F300 * Approach the contour at point 1, activate radius compensation G41
N80 G26 R5 F150 * Tangential approach
N90 Y+85 * Point 2: First straight line for corner 2
N100 G25 R10 * Insert radius with R = 10 mm, feed rate: 150 mm/min
N110 X+30 * Move to point 3: Starting point of the arc
N120 G02 X+70 Y+95 R+30 * Move to point 4: end point of the arc with G02, radius 30 mm
N130 G01 X+95 * Move to point 5
N140 Y+40 * Move to point 6
N150 G06 X+40 Y+5 * Move to point 7: End point of the arc, circular arc with tangential
connection to point 6, TNC automatically calculates the radius
X
Y
95 5
95
5
85
40
40 30 70
R10
R30
1
2
3
4 5
6
7