O0001
#1=30 (qhov taub)
#2=20 (qhov tob)
#3=20 (Txoj kab uas hla)
#4=0 (Z ua haujlwm)
#5=1 (txiav qhov tob ntawm txhua txheej)
#6=[#1-#3]/2 (Swivel diameter of tool center) S2000 M03
G54 G90 G00 X0 Y0 Z50.
G0X#6 (G0 sai sai txav saum lub cuab yeej qis)
Z[-#4+1] (G0 poob rau 1. ntawm Z-#4 nto, uas yog, ntawm Z1.)
G1Z-#4F200. (G1 nyob rau hauv Z kev taw qhia poob mus rau tam sim no pib qhov tob ntawm kev ua Z-#4)
WHILE[#4LT#2]DO1 (thaum ua qhov tob #4 tsawg dua qhov tob #2, lub voj voog txoj haujlwm 1)
#4=#4+#5 (txiav qhov tob ntawm txhua txheej)
G3I-#6Z-#4F500. (G03 counterclockwise kauv ua rau txheej tom ntej)
END 1 (End of loop 1)
G3I-#6 (mus txog qhov tob ntawm lub qhov, G03 taug kev tag nrho lub voj voog counterclockwise)
G1X[#6-1] (G01 rov 1 mus rau qhov chaw, uas yog, thim lub cuab yeej)
G0Z50.
M30
