HEIDENHAIN TNC 410 ISO Programming - Manual (Page 164)

138 6 Programming: Programming Contours
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Example: Full circle with Cartesian coordinates
%C-CC G71 *
N10 G30 G17 X+0 Y+0 Z-20 * Define the workpiece blank
N20 G31 G90 X+100 Y+100 Z+0 *
N30 G99 T1 L+0 R+12.5 * Define the tool
N40 T1 G17 S3150 * Tool call
N50 G00 G40 G90 Z+250 * Retract the tool
N60 I+50 J+50 * Define the circle center
N70 X-40 Y+50 * Pre-position the tool
N80 G01 Z-5 F1000 M3 * Move to working depth
N90 G41 X+0 Y+50 F300 * Approach starting point, radius compensation G41
N100 G26 R5 F150 * Tangential approach
N110 G02 X+0 * Move to the circle end point (= circle starting point)
N120 G27 R5 F500 * Tangential departure
N130 G01 G40 X-40 Y-50 F1000 * Retract tool in the working plane, cancel radius compensation
N140 G00 Z+250 M2 * Retract tool in the tool axis, end of program
N999999 %C-CC G71 *
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