[pp-TG]

Hi all,

Can anyone tell me if it is possible to program a radius in the x & z axis on a cnc mill I have a fanuc oi-mb control?

I am using a 1/2" ball em. and need to mill an ellipse in the face of a part....

[ger21]

How about using G18?

[pp-TG]

Thanks Ger21,

I Was Just Looking At That Never Used It Before But Looks Pretty Straight Forward...

One Thing I Am Not Sure Of Is This A Modal G Code... So After I Am Done With The Radius I Must Have To Call Back Up G17, Is This Correct?

[ger21]

Thanks Ger21,

I Was Just Looking At That Never Used It Before But Looks Pretty Straight Forward...

One Thing I Am Not Sure Of Is This A Modal G Code... So After I Am Done With The Radius I Must Have To Call Back Up G17, Is This Correct?

I think so, but I've never used it myself either.

[pp-TG]

:cWORKED GREAT, I DID HAVE TO CALL BACK UP G17 AFTER THE RADIUS WAS DONE. BUT WOKED THANKS AGAIN.:cheers:

[Thycbs]

Hi all,

Can anyone tell me if it is possible to program a radius in the x & z axis on a cnc mill I have a fanuc oi-mb control?

I am using a 1/2" ball em. and need to mill an ellipse in the face of a part....

Hi there, I just used this program

G17 g21 g90 g94
T5 M6
G54
S1000m3
G0 x-15 y0
G43 z100 h5
Z2
G18
G1z-26f1000
X50 ,r26 f300 (the full length was 60mm, but I was using a 20 mm ballnose so I had to consider the radius of the tool)
G0z200
M30

Or you can use the center of the arc

G18 g21 g90 g94
T5 M6
G54
S1000m3
G52 x25 y0 (start point of the radius)
G0 x-41 y0
G43h5 z100
Z2
G1 z-26 f1000
X0 f300
G2 x26 z0 i0 k26
G1 z1
G52 x0 y0
G0z200
M30

I hope it helps

[routalot]

I don't suppose the job has been sitting on the mill for the last 16 years waiting for a solution,but you never know.One day bots might be given the ability to refer to dates and ignore those that are more than a few weeks old.