Re: [CAD_CAM_EDM_DRO] Re: Help needed with G code

David...

You're right! It does sound funny, but I'll give it a go as soon as I've had my
breakfast. It does make sense in that, as you point out, all the information
for a curve is contained in just one parameter of the end point and either the
centre coordinates or the radius. If it works for YZ, it would be interesting
to see if this can be done in the XY plane, where I now have enough experience
to program with confidence.

I'd like to use R rather than I and J but it appears that it is not supported by
CNCPro. Pity.

Am I correct in thinking that, in the YZ plane, I relates to the Y axis and J to
Z - and that K is only used in true 3D systems?

Thanks for your help.

Mike

----- Original Message -----
From: "volitan712003" <volitan@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, November 12, 2003 2:04 AM
Subject: [CAD_CAM_EDM_DRO] Re: Help needed with G code


> Mike,
>
> Also, this may sound funny but try taking that Z-1.2 out of your G3
> line as well. The control shouldn't need it (it's redundant because
> the other information in the line is enough)and in my limited
> experience coding I' and J's by hand, being too specific can sometimes
> lead to trouble. Speaking of which, when I programmed the machines at
> work by hand (we have had Mastercam a long time now), I used R's
> instead of the I's and J's anyway. It was alwasy easier for me. If all
> else fails, see if you can't just use:
>
>
> G03 Y-6.2 R15.678
>
> (That's the radius you are trying to achieve according to the numbers
> you gave)