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

George,

Attached is a gcode file, generated with FlashCUT 2.0 which will cut what
you want. It does NOT include any tool offsets but it will give you an idea
of what the code would look like. It is setup for the speeds and feeds I
normally run my Sherline 5400 mill at when cutting 6061-T6 aluminum.

John Guenther
'Ye Olde Pen Maker'
Sterling, Virginia

> -----Original Message-----
> From: gglines1 [mailto:gglines@...]
> Sent: Tuesday, June 24, 2003 14:55
> 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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