T0 D0 G0 G56 Z500 W0 R3=0 X-600 Y0 M44 M3 S350 F2000 Z14.5 G1 G41 X=-540/2 T1 D1 G2 X=-540/2 Y0 I=540/2 G0 G40 X-600 AA: X-600 Y0 IF R3>90 R3=90 ENDIF R3=R3+1.5 Z=14.6-SIN(R3)*14.5 G1 G41 X=-540/2-(14.5-COS(R3)*14.5) T1 D1 G2X=-540/2-(14.5-COS(R3)*14.5) I=540/2+(14.5-COS(R3)*14.5) G0 G40 X-600 IF R3<90 GOTOB AA Z500 W0 M30