Re: [CAD_CAM_EDM_DRO] Re: end mill types

Ahhh, thanks Jon, I wasn't thinking about radiusing the bottom corners of a
recess. That explains things perfectly.

Ian
--
Ian W. Wright
Sheffield UK

----- Original Message -----
From: "Jon Elson" <jmelson@...>
>
> All end mills must cut rounded corners when you look down the axis of
> the
> cutter (at the X-Y plane). But, a square-end end mill (slot drill in
> UK) will cut
> a square corner as seen from one of the orthogonal planes. In other
> words,
> the sides of the pocket must be rounded, but the intersection of the
> side and
> the bottom can be a sharp inside corner. This could cause stress
> concentration