Radieus milling macro

[Green Button]

Does anyone have radius milling macro for Fanuc ?

I have turned hole for example D100, i would like to mill from 90deg to 120 deg an arc with D140

Input:
cutter diameter D20
start angle 250deg
end angle 90deg
start diameter 100
end diameter 140
chip size in radius 5
chip size in depth
ZIGZAG millin g (both G02 & G03)




-GB

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[Green Button]

This is what i did but not working....


Start angle=250 #1
end angle =90 #2
start radius =100 #3
end radius=140 #4
chip 5 #8
tool diam =20 #20


G65P8100 A250B90C100D140E5T20


O8100
#109=#3-#20
#110=cos(#1)*(#109-2)
#111=SIN(#1) *(#109-2)
G00X#110Y#111

N1 IF #109 GT #4 GOTO 99
#109=#109+STEP
#110=cos(#1)*(#109)
#111=SIN(#1) *(#109)
G01X#110Y#111
#110=cos(#2)*(#109)
#111=SIN(#2) *(#109)
G02X#110Y #111R#109
N2 IF #109 GT #4 GOTO99
#109=#109+STEP
#110=cos(#2)*(#109)
#111=SIN(#2) *(#109)
G01X#110Y#111
#110=cos(#1)*(#109)
#111=SIN(#1) *(#109)
G03X#110Y #111R#109
GOTO 1
N99M99

[dcoupar]

What do you mean "it's not working"? Do you get an alarm?

What is STEP? That looks like it should cause an alarm.

[Green Button]

My mistake..STEP should be #8
Also tool diam have to be changed to radius
I was able to do program with Basic (attached ), it was easiest way to check program. How can i do following line with Fanuc:
IF a109 > a4 or a109=a4 GOTO 99







BASIC language
a1=250 'start angle)
a2=90 'end angle)
a3 =50 'start radius)
a4=70 'end radius
a8=10 ' chip thickness
a20=10 'tap radius




a109=a3-a20
a110=cos(a1)*(a109-2)
a111=SIN(a1) *(a109-2)
PRINT "G00",a110,a111

1
a109=a109+a8
IF a109 > a4 or a109=a4 GOTO 99
a110=cos(a1)*(a109)
a111=SIN(a1) *(a109)
PRINT "G01",a110,a111
a110=cos(a2)*(a109)
a111=SIN(a2) *(a109)
PRINT "G02",a110,a111,"R",a109
a109=a109+a8
2 IF a109 > a4 or a109=a4 GOTO 99

a110=cos(a2)*(a109)
a111=SIN(a2) *(a109)
PRINT "G01",a110,a111
a110=cos(a1)*(a109)
a111=SIN(a1) *(a109)
PRINT "G03",a110,a111,"R",a109
GOTO 1

99
END

[dcoupar]

GE is Fanuc's "greater than or equal to", so you can use:

IF[#109GE#4]GOTO99

[Green Button]

Thanks !
Have a nice day,

GB