Re: [CAD_CAM_EDM_DRO] Re: EDM Rotation speed

turbulatordude wrote:

>Jon mentioned that he used a titanium electrode wire with a slight
>bend in the end.
>

Hmmm? Are you talking about me? I used .060" brazing rod. I tried
to get the rod straight, but it always was just a hair eccentric, which was
fine.

> that would have the effect of directing the
>sparking action to a narrow section under the rotating wire.
>
>

Yes, that is exactly what happened. but, the hole was actually not much
bigger than the rod. I only needed a hole about .060" to burn away the
web of a 6-32 tap. Once the web is gone, the flutes of the tap can be
picked out of the hole, leaving the thread pretty much intact.

Jon