Re: [CAD_CAM_EDM_DRO] G02 - G03

this reminded me of the first controller that I worked some 17 years ago
it needed I & j for every radius parameter and if it was not within .001 mm
it was end point error. Gee I have some fun trying to program a complete set of letters
and numbers. Yet still with the relative new fanuc m10 controller if you try to do a curve
of more than 180o without specifying I or J it would do a flattened curve.
regards
mariano

Art Fenerty wrote:

> >From what I understand, most controllers either use R or IJK, If the IJK
> values are not correct then the controller
> will ( or should) report "End Radius not equal to Start Radius".
> To me , this makes it rather silly to use IJK, why not just use R, that
> way it should always be correct as long as R is with-in a window of
> tolerance allowing it to touch both start and stop points when swung. I
> guess R would have to be at least 1/2 of the distance between start and end
> and any distance long. Does that sound right??
>
> Art
> ----- Original Message -----
> From: "Tim Goldstein" <timg@...>
> To: <CAD_CAM_EDM_DRO@egroups.com>
> Sent: Monday, August 21, 2000 11:11 AM
> Subject: RE: [CAD_CAM_EDM_DRO] G02 - G03
>
> > I would vote for using R as I can understand that one and almost follow
> the
> > code when reading it over. The IJK seems pretty tough to follow unless you
> > want to sit down and work at it real hard.
> >
> > Tim
> > [Denver, CO]
> >
> > > -----Original Message-----
> > > From: Art Fenerty [mailto:fenerty@...]
> > > Sent: Monday, August 21, 2000 3:22 PM
> > > To: CAD_CAM_EDM_DRO@egroups.com
> > > Subject: [CAD_CAM_EDM_DRO] G02 - G03
> > >
> > >
> > > Hi:
> > >
> > > I am trying to update MasterControlCNC to do G02
> > > and G03 circular interpolation and although I now have
> > > working code ( thanks
> > > to Doug Fortune) I don't quite understand which is the most
> > > common form of
> > > interp.
> > > My post processor on the software I use the most does
> > > not generate circ. only linear. Am I better off using R
> > > registers or IJK
> > > interp? or both? Is IJK now pretty much obsolete?
> > >
> > > Art
> >
> >
> >
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>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the discussion of shop built systems, for CAD, CAM, EDM, and DRO.
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