Hi to all,

We have a new hyundai kia skt21lm lathe with a fanuc oi-tc controller and I am trying to find out how to use the auto chamfering function.

The book says to use an I or K value with sign to indicate direction of chamfer but it is not working.

Thanks.

try c with the value for the chamfer
for exampe
G1 X100 C2(chamfer 2mm)
G1 Z-.....
etc

Thanks for your reply Ruud65,
The lathe we have has milling and the c axis refers to the main spindle axis, so I am not able to use c for chamfering as well a the main spindle without getting an error message.
I am not sure what else to try!
cjw

1. What is the error message?
2. Are the 2 lines single axis moves and perpendicular to each other?

Dcoupar, I got an error 197 - c axis commanded in spindle mode.
Reading a little further through the book it said if I want to use c for chamfering to change parameter 3405#4 to 1 and yes, that does work.
But now when I want to use the spindle c axis I get an error message - error 055 missing move value in chf/cnr.
I guess instead of calling for c axis I could call it H axis.

I believe you should set #3405.4 back to 0.

You should use I or K for chamfer amount and direction.

H is probably already used for incremental C. Back to your original problem: You said, "The book says to use an I or K value with sign to indicate the direction of chamfer but it is not working." Please post that original code, and explain what happened when you tried to run it.

I tried
G1 X85 Z0
G1 X100 K5
G1 Z-25
all it did was move to X100 no chamfer.
So then I tried K-5
same thing and no chamfer.

Can some one explin me this better?
test1