Re: Vector with EMC

>
> Alan:
>
> EMC will take the code for G02/G03 using I/J but gives errors, at least
> for the G-codes I've generated from Vector. I think the error is the
> radius from start to I/J is different than radius from end to I/J. I do
> not remember bumping up the sig fig to 6 and trying I/J, that might
> solve the problem in itself. I know going to radius and 6 sig figs
> works. I know EMC will do 180 degree arcs using radius, I haven't tried
> larger than this lately. If I remember, I've had to break full circles
> into two commands of 180 degrees, using radius.
>
> I should experiment and pin down the problems rather than finding work
> arounds. But I want to build parts, ya know. :-) If I do get the time to
> solve any of these I'll report back. Or, if anyone know the answers
> please chime in. :-)
>
> Thanks.
>
> Hugh Currin
> Klamath Falls, OR
>
> On 10 Dec, Alan Marconett KM6VV wrote:
> > Hi Hugh,
> >
> > Interesting comments. I am surprised that you convert G02/G03 I & J's
> > to Radius! NIST (EMC) supports the I J K for arcs just fine. I've
> > heard that the radius (R) approach is prone to errors if the arc's are
> > very big. Perhaps this is why you had to resort to 6 decimals? It
> > won't even handle full, or near full arcs, I'm told (ambiguous). And I
> > certainly think it's more difficult to write the controller code for (I
> > gave up for now).
>
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