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

--- In CAD_CAM_EDM_DRO@y..., "turbulatordude" <davemucha@j...> wrote:

> Hi John,
>
> I have been following this thread with some interest.
>
> First question is why the heck were you using a spiral
> tap in steel ?

Shallow blind hole (trying to put 0.250-0.300 of thread
in a 3/8 deep hole).

>
> second, let us know how it worked and what you did for liquid.

Will do - last night I had other comittments, but I hope to try
it tonight. Based on all the messages so far, I think my best
bet is a sinple tube electrode, no rotation or vibration, feed
by a combination of machine head flex and fine quill feed handle.
Fluid will probably be distilled water from the grocery store.
I will rig up something to flow the water through the electrode.

I gathered some of the electrical parts together last night, I
have three 2uf caps, so I can do 2, 4, or 6uf. I think I have
an 8uF part tucked away somewhere - if I can find it I can try
larger capacitances (up to 14uF). I also have 25 & 50 ohm 300
watt resistors, so I can try 16.6, 25, 50, or 75 ohms.

>
> If you can, please post or send pics.
>

Hopefully I'll remember to take pics - usually I just get
into what I'm doing and don't think about photos until the
job is done.

John Kasunich