﻿;R1毛坯X，R2工件左起点Z
;R3每刀切深，R4最后X，R5当前X
M3 S1200 T1 D1
R1=90 R2=0
R3=10 R4=21
R5=R1-R3
G0 X=R1 Z=R2+2
MARK1: R5=R5-10
IF R5 >= R4 GOTOF MARK2
R5=R4
MARK2: G0 X=R5
G1 Z=R2-150 F0.5
G0 X=R5+2 Z=R2+2
IF R5 > R4 GOTOB MARK1
M2