[Amps] winding conductors on edge into inductances TSPA

[Tom W8JI]

> I am going to make a guess for this, when you use tooling 
> on a
> rotating cylinder of raw stock, a spiral of metal comes 
> off, in the
> shape of a coil. If you do this with a propertly set up 
> lathe, you
> should have a scrap piece which is the desired coil. Now 
> if you can
> do this work with a lathe, and cut out exactly the coil 
> you would
> like, turning the ID and OD, and the thickness, you should 
> have the
> conductor you need already in the turned diameter of the 
> coil. Then
> it would be wound onto a former, screwed into it, so to 
> speak. Does
> this agree with reality? I don't know.


Not the way we did it.

We had a tool head with multiple small deep square grove 
roller wheels and pulled soft ribbon onto a mandrel that 
rotated.  The wheels led the ribbon in a decreasing radius 
circle stretching the outside edge. The mandrel pulled and 
collected the ribbon. The stretching hardened the metal. 
The other way would be too time consuming and too wasteful.