N0270 X19.5;粗车五刀外圆得 φ39 ㎜
N0280 G01 Z-4 F100
N0290 G91 X3 Z-3;粗车圆锥二刀
N0300 G90 G00 X25
N0310 Z2
N0320 X18;精车外轮廓
N0330 G01 Z0 F150 S800
N0340 G91 X1 Z-1
N0350 Z-3
N0360 X3 Z-3
N0370 Z-3
N0380 G02 X5 Z-5 I5 K0
N0390 G01 Z-2
N0400 X-1 Z-1
N0410 G90 G00 X30
N0420 Z150
N0430 M02