HEIDENHAIN TNC 426B (280 472) Training ISO programming - Manual (Page 57)

Solution:
HEIDENHAIN Basic Course ISO G 426
Contour cycles SL II,
Kidney-shaped island
62191/3 F06
SPGM N85 G98 L1 *
N90 G01 G41 X+5 Y+30 *
N95 I+15 J+30 *
N100 G02 X+6,645 Y+35,495 *
N105 G06 X+55,505 Y+69,488 *
N110 G05 X+58,995 Y+30,025 R-20 *
N115 G06 X+19,732 Y+21,191 *
N120 G02 X+5 Y+30 *
N125 G98 L0 *
N130 G98 L2 *
N135 G01 G42 X-10 Y+10 *
N140 Y+110 *
N145 X+110 *
N150 Y-10 *
N155 X-10 *
N160 G98 L0 *
N999999 %62191 G71 *