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

>
>
>If the outer edge of the ring is 12" and the part is 1" wide,
>wouldn't the inner edge of the ring be an 11" circle?
>

No, because you have to think in terms of the whole circle. To have 2
concentric circles, separated by an inch on *each side* your *radius*
has to be an inch different. Diameter is Radius*2, so it's 2 inches
different...10" and 12", or radiuses of 5" and 6".

-- Chuck Knight