re: IJK interp was Re: G code Examples / Cutviewer

Ballendo,

Can you give Manufacturer's names to these "flavors" of G02/G03? The
one I first "understood" (?) must be "TO" the center?

G00 X 0.191 Y 0.462
G03 X 0.191 Y 0.462 I -0.191 J -0.462 (#1 CCW 360 circle @ 67.5)

Would this be FANUC? MaxNC and FlashCut seem to like it. And what
would be some other flavors?

Alan KM6VV
P.S. I assume this is all in your new book? Is it too early for a "flap
cover" description of the book?
P.P.S. Congratulations!


ballendo@... wrote:

>
> Smoke wrote:
> >Yes, it appears to actually show the cutter comp. but the tool paths
> >are incorrect if your using the IJK method of circular interpolation.
>
> Smoke,
>
> You are aware that there are different forms of IJK usage?
>
> Some are unsigned distance TO, others signed distance FROM...
>
> And the FROM and TO can be current position or end position...
>
> And the coords can be relative or absolute...
>
> Isn't Gcode wonderful!
>
> Ballendo
>
> P.S. The I,J,K we're talking about are the distances which define
> WHERE the center point of an arc movement is in a G02(CW) or G03(CCW)
> move.