The first circle is ~1.5" diameter and starts at Z0 and progresses around to 0.070" depth. The cutter continues its decent around the second pass, now at constant depth of cut of 0.070" and continues round and round until the final pass, cutting all the way through at 0.390". Then there is another cut again at the surface with a 0.125" larger radius, two passes to achieve a depth of only 0.120".
Code: Select all
% (cutter: 4 flute, 1/4") (RPM: 1500) G90 G00 Z1 X0 Y0 G00 X0.000 Y0.625 Z0.020 G1 F7 Z0 (CCW circle) G03 X0.000 Y0.623 Z-0.070 I0.0 J-0.623 G03 X0.000 Y0.623 Z-0.140 I0.0 J-0.623 G03 X0.000 Y0.623 Z-0.210 I0.0 J-0.623 G03 X0.000 Y0.623 Z-0.280 I0.0 J-0.623 G03 X0.000 Y0.623 Z-0.350 I0.0 J-0.623 G03 X0.000 Y0.623 Z-0.380 I0.0 J-0.623 G01 X0.000 Y0.625 G03 X0.000 Y0.625 Z-0.390 I0.0 J-0.625 G00 Z0.010 G01 X0.000 Y0.750 G01 Z0.000 G03 X0.000 Y0.748 Z-0.070 I0.0 J-0.748 G03 X0.000 Y0.748 Z-0.120 I0.0 J-0.748 G01 X0.000 Y0.750 G03 X0.000 Y0.750 Z-0.120 I0.0 J-0.750 G00 Z1 X0 Y0 M30 %