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Anyone ever build a coil from scratch?
Posted by go-rebels
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Re: Anyone ever build a coil from scratch? July 19, 2017 05:18AM |
Geotech Wrote:
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> True, but there are some coils money can't buy. A
> coax or a Bigfoot comes to mind.
A Bigfoot-----"build it and they will come"!!------We can dream can't we!
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> True, but there are some coils money can't buy. A
> coax or a Bigfoot comes to mind.
A Bigfoot-----"build it and they will come"!!------We can dream can't we!
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Re: Anyone ever build a coil from scratch? July 21, 2017 01:43AM |
My friend Kinny did.
But like Sven said, a PI coil is more straight forward, VLF, more time, more complicated.
Kinny build a PI coil for his Minelab gold finding machine.
We talked on the phone.
He researched the principals of how coils work.
Then he bought an inductance meter, and some special wire.
Kinny is in my trade. Precision Grinding.
But of course he has support equipment too.
I am in my 42nd year of the trade, he is in his 50th year.
He is a sharp guy. And his brother is a mathematics wizard.
Here are the pictures of the fixtures he built, how he went about the construction.
His goal was to build a coil that he could poke under bushes and get into some tight places.
The coil works real well, and he found gold with it, starting with the first time out.
I looked through old emails........
Now here is the part I can't remember perfectly..........
The "Housing"
I remember him mentioning "Hays", ok, that makes sense.
But I seem to remember.......
Ok, I remember.
Kinny built the tooling to generate housings.
Hays agreed to run some for him if he could keep the tooling, and Kinny said, "sure".
The thing about building coils..................
Hays is very much missed.
I chased down what "may" have been some of Hays's forms.
But I couldn't confirm they were from his shop.
SandMan
But like Sven said, a PI coil is more straight forward, VLF, more time, more complicated.
Kinny build a PI coil for his Minelab gold finding machine.
We talked on the phone.
He researched the principals of how coils work.
Then he bought an inductance meter, and some special wire.
Kinny is in my trade. Precision Grinding.
But of course he has support equipment too.
I am in my 42nd year of the trade, he is in his 50th year.
He is a sharp guy. And his brother is a mathematics wizard.
Here are the pictures of the fixtures he built, how he went about the construction.
His goal was to build a coil that he could poke under bushes and get into some tight places.
The coil works real well, and he found gold with it, starting with the first time out.
I looked through old emails........
Quote
Kinny
The attachments will show the first tooling (Styra foam) I tried for winding a coil. It was crude just to see if it would work at all! It did!
The second skeleton tooling was much better, but I did not have the control over the windings like I wanted.
The third and final solid tooling was what worked the best. I’m not sure it makes that much difference if the coil is that neatly wound or not?
The finished coil works fine.
I have one 85% finished which I think will be even better, but I ran out of gas on that project because the first one works so well.
Below is the last piece of gold found with the home made coil, it’s a specimen roughly 1”x1”x1.5”.
Now here is the part I can't remember perfectly..........
The "Housing"
I remember him mentioning "Hays", ok, that makes sense.
But I seem to remember.......
Ok, I remember.
Kinny built the tooling to generate housings.
Hays agreed to run some for him if he could keep the tooling, and Kinny said, "sure".
The thing about building coils..................
Hays is very much missed.
I chased down what "may" have been some of Hays's forms.
But I couldn't confirm they were from his shop.
SandMan