[jwilczek]

When trying to run just a simple arc program like this I am getting an error msg 0006 End Point Off Circle, end point in circular interpolation off more than .0100 inch on line N06 any help would be great. The machine is a Sabre 1250 with Acramatic 850SX control

Thanks, Joe

:
N01G70G00G90G40T237H00M06
N02G00X.4425Y0.S2500M03
N03G00Z.25
N04Z.1
N05G01Z-.5F10.3
N06G03X-.4425I0.J0.
N07X.4425I0.J0.
N08G00Z.25
N09M02
%

[78nova]

What is it you are trying to do?

Cut an arc or a circle?

From what I see in your program, you have no movement to do either one.

Your X position is not moving anywhere.

You have no I or J movement either.

You have positioned the machine to X.4425 Y0. Z.25 , you then moved in Z down to Z -.5 but then you are asking to move CCW to the same X you positioned to and you have no Y position noted. This ends up with no movement.

Normally, the X position would stay the same if you have movement indicated by a J amount for which you would be moving off center in the Y direction hence Y would not stay at 0 in your program but be a number to make a circle.

A arc would usually be made with both a I & J movement.

(nuts)

[beege]

IIRC, I and J are absolute arc center coordinates on an 850SX. On a Fanuc, it would have been relative to the arc start point. I'd try two things. First, I'd call another G03 on line N07. Then I'd call a G01 and not G00 on the next line. Have you tried:

N01G70G00G90G40T237H00M06
N02G00X.4425Y0.S2500M03
N03G00Z.25
N04Z.1
N05G01Z-.5F10.3
N06G03X.4425Y0.I0.J0.
(MSG, SHOULD MAKE FULL CIRCLE CCW AROUND PART ORIGIN)
N07G01Z.25F100.
N09M02

[jwilczek]

IIRC, I and J are absolute arc center coordinates on an 850SX. On a Fanuc, it would have been relative to the arc start point. I'd try two things. First, I'd call another G03 on line N07. Then I'd call a G01 and not G00 on the next line. Have you tried:

N01G70G00G90G40T237H00M06
N02G00X.4425Y0.S2500M03
N03G00Z.25
N04Z.1
N05G01Z-.5F10.3
N06G03X.4425Y0.I0.J0.
(MSG, SHOULD MAKE FULL CIRCLE CCW AROUND PART ORIGIN)
N07G01Z.25F100.
N09M02

I will try here once will write back with results. My post was made with X3 Mastercam, I know the basics of the G03 with my 850 after reading about it but I have never done any arc's with it yet just drilled pattern holes and straight cuts.

Thanks, Joe

[jwilczek]

That works, now to try something more, but I guess my post in x3 needs some help since it didn't work without editing.