Re: [TCML] Making a neat primary

[Jim Lux <jimlux@xxxxxxxxxxxxx>]

-----Original Message-----
>From: "Stephen J. Hobley" <shobley@xxxxxxxxxx>
>Sent: Jul 28, 2008 11:18 AM
>To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
>Subject: [TCML] Making a neat primary
>
>Anyone got any tips on creating a neat primary wind? My second attempt is much better than my first, lousy attempt - but it's still not very regular.
> 
>I thought about having a guide made on a CNC mill that has an accurate spiral groove cut into it, feed the copper tubing into that first, then remove it and install it in the coil.
> 
>I've seen some really neat looking primary coils out there...
> 


It's all in the initial handling of that copper tubing.  even if you had a spiral guide, it likely wouldn't get what you want.

When you first do the primary, start with brand new tubing in the coil from the box.  Move it as little as possible as you carefully set it into the supports.  Once you've bent it, that's what it's going to be.. it's a bit springy, but mostly, it takes a permanent deformation, so make sure the first time you deform it is the only time.




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