Re: Secondary wire & insulation

Subject:  Re: Secondary wire & insulation
  Date:  Mon, 9 Jun 1997 23:58:23 -0600
  From:  "DR.RESONANCE" <DR.RESONANCE-at-next-wave-dot-net>
    To:  "Tesla List" <tesla-at-pupman-dot-com>

To: Alfred

A tip for lathe winders:  Start with a 1/2 or 3/4 ID pvc tube. 
your feed settings as best as you can and then wind away.  After careful
adjustment you will have a feed that works good for your size wire.  The
main point here is that by using a small tube for starting out you don't
use very much wire to do a 5 inch lineal test winding.  You can toss
tests away after getting the best settings and then wind away at a
reasonably high speed on the larger diameter 4 in or 6 in tube with the
correct settings.  It is a lot easier to make a mistake on a 1/2 tube
then throw it away than it is to waste a lot of wire on a larger tube. 
After we dial in our settings for a particular type of wire we record
data.  Then 6 months later we can speed wind a coil such as a 6 in tube
26 in length in approximately 15 minutes total winding time without any
overlaps or gaps.  

Hope this tip is of assitance.


> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-poodle.pupman-dot-com
> Subject: Re: Secondary wire & insulation
> Date: Monday,June 09,1997 10:30 PM
> Subject:  Re: Secondary wire & insulation
>   Date:  Mon, 9 Jun 1997 22:06:47 +0500
>   From:  "Alfred A. Skrocki" <alfred.skrocki-at-cybernetworking-dot-com>
>     To:   Tesla List <tesla-at-pupman-dot-com>
> On Fri, 6 Jun 1997 20:03:51 -0700 (PDT) Edward V. Phillips
> <ed-at-alumni.caltech.edu> wrote;
> > "Of course the best way is to use a
> > lathe (expensive)or make a winding machine."
>          Watch out on using the lathe.  It is almost impossible
> > to stop in  time when something goes wrong with the winding,
> > as it usually does (at least for me).
> I'm lucky on that one! My wife bought me an 8 inch EMCO with back 
> gears and speed control on the head and a magnetic break. That baby 
> will stop on a dime from 3000 RPM! When I wind coils I set the back 
> gears to give me the thread pitch I want then I start up the head 
> slowly and watch as it goes.
> > A hand-cranked winder consisting of nothing more than a piece of
> > threaded rod mounted in simple bearings (even wood) and end pieces
> > which fit the tube work just great.  It only takes an hour or so
> > to wind a pretty big coil, and you can't get in trouble.  Particularly
> > if you keep pre-cut masking tape handy to hold things in place
> > when you have to stop.  Look at some of the TCBOR videos for
> > similar arrangement.
> How do you space your windings on a jig like that? I mean it has no
> longitudinal feed so your going to be holding the wire in your hand.
> Not very precise if you ask me. Unless you set it up like a giant
> bait casting fishing reel.