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Re: Gazing Ball Terminal ?



Original poster: Stan <wsmg@xxxxxxxxxx>

When drilling SS you need to go slow and keep from heating, the heat hardens the SS as your drilling. What I found to work best is using a hand drill and inching it.

Tesla list wrote:

Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

Hi Dave,

At 12:01 PM 10/21/2006, you wrote:

Hi again, sorry to be a pest :-( , but, your gazing balls come with a small hole in them ?


Yes,  I enlarged them yesterday with one of those multi size bits:

http://www.sears.com/sr/javasr/product.do?cat=Power+Tool+Accessories&pid=00920921000

It is pretty hard on the expensive drill bit...

Go real slow and gentle since the stainless steel is super ultra hard (they will NOT dent easily!!!)!!! Let the bit do the work with a little cutting oil. I drilled to a little less than the final size and then reamed the hole exactly:

http://www.sears.com/sr/javasr/product.do?cat=Hand+Tools%2C+General+Purpose&pid=00940884000

Then you hold it with the hole straight down and shake it for ten hours trying to get the &^%&$ shavings out. Also had to de-burr the hole a little...

 , is there any coating on it ?  I though I read there was, but, ???????????
.. I see the "Mystic " ball has the coating , ..........:-(


The cheapest "silver" or bare ones are just bare stainless steel. The mystics might look real cool if you got them! The base steel is indestructible if it is a disaster and you had to strip the coating.

Also, when you slip your slider tube in and epoxy it, how will you assure its directy in the center ? , some kind of jig or somethin' ?


Yes, I will have to make a jig to hold the ball centered and the rod perfectly perpendicular to the ball. I will pour epoxy into the hole so it smears inside opposite the hole to hold the far inside end. I was thinking of using conductive epoxy on the outside end but maybe I will just leave it for the moment. The holes are fairly tight.

Heck, I dont know!!!   Man, your gonna have one awsom coil !!!


:-))  Mostly working on the wood box today while the weather is reasonable.

I will CC the list too since others may have such questions.

Cheers,

        Terry