Re: [CAD_CAM_EDM_DRO] Tap burning EDM? Need it Quick and Dirty ;-)

jmkasunich wrote:

> It seems that anything simple that I can come up with will
> require manual electrode feed. Is it practical to use
> manual feed to burn out about 3/8" of a #8 tap? Or is slow,
> smooth advance of the electrode too difficult to do?

I don't think you could do it easily by hand in this lifetime
:-). A more practical way might be to use a hand held vibratory
engraving tool with an insulater chucked in it that can hold the
electrode. Most of the big tap burners (and some small ones) are
just a vibration device that sits there and jiggles. In your
one-off tribulation, you could hand feed that into the tap. You
could duct tape the engraving tool to a rod chucked into your
drill press to hold it all steady. Kind of rube goldberg but it
should work once and hopefully you'll not break another tap :-).

JerryK