Need an assist on chamfers...

[gogego]

I keep getting Alarm 55 (Missing move value in CHF/CNR)
move distance is commanded less than the corner radius part..

here is the section Im stuck on now

...
#15=.03
...
G96S300M4
Z.2
G0X[#100+.1]Z.1
G71U[#1](DOC)
G71P420Q430U.04W.005F.01
N420 G0X[#119-[2*#15+.03]] Z.01
G1X[#119]C-[#15]
Z-[#127]F.007
X[#120]C-[#16]
Z-[#127+#128]
#2=#120
...
The prog. reads N420 then alarms out
Initially I didn't have the +.03
I have tried +.1 but still get alarm
any advice/help would be appreciated

[ProProcess]

Make sure that you're in the correct plane (G18 I assume).
After that, the move after the chamfer needs to be atleast as big as the chamfer itself and in the same direction.
Too, are you sure that you need the "-" with the C value.
Though I do not know what control you're using but base on your code, something like this...

G1 Z0
X.5 C.03
Z-.05(THIS MOVE NEEDS TO BE AT LEAST AS BIG AS THE C VALUE)
X1.

HTH
Good luck

[sinha_nsit]

Possibly your control does not allow C within G71.