RE: [CAD_CAM_EDM_DRO] Cutting an arc help G2/G3?

George,

By the way, if "2.5" long piece cut out of a 12" ring that is 1" wide" is
true, then you are talking about a 12" circle and a 10" circle if the part
really is 1" wide.

John Guenther
'Ye Olde Pen Maker'
Sterling, Virginia

> -----Original Message-----
> From: gglines1 [mailto:gglines@...]
> Sent: Tuesday, June 24, 2003 14:55 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Cutting an arc help G2/G3?
>
>
> I have to cut a small workpiece with a curve. The workpiece will be
> 2.5 inches long, 1" wide and 1/2" thick. The long end of the
> rectangle needs to be cut in an arc to match a 12" circle, the
> shorter inside arc to match an 11" circle. Hard to describe, think
> of a 2.5" long piece cut out of a 12" ring that is 1" wide.
>
> Assuming I start with a workpiece that is a rectange 2.5" long by 1"
> wide, how would I program the arc cut? I can see programming a
> circle and letting the machine make a 12" revolution, but that would
> be really slow. I'm not sure how to program just the part of the arc
> that I need.
>
> Thanks,
>
> George
>
>
>
> (FYI: My controller software (Microkinetics Millmaster Pro)
> recognizes I and J parameters but not the R parameter with G2/G3)
>
>
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