Re: Flat Spiral Winding Techniques

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

Dave: I use fiber glass resin to coat all my coils. I can have a coil ready
for use the next day.I suggest this on the net and get no responce.You are
using urethane and take days. Can you tell me what advantage your coating
has ? I would like some feedback. I may never change, but I would like to
hear some responce. Thanks
  Robert  H

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Sat, 16 Mar 2002 19:47:16 -0700
> To: tesla-at-pupman-dot-com
> Subject: Flat Spiral Winding Techniques
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Sat, 16 Mar 2002 20:15:36 -0700
> 
> Original poster: "David Thomson by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <dave-at-volantis-dot-org>
> 
> I tried winding a flat spiral coil between two sheets of 1/4" Plexiglas
> yesterday.  The coil wound perfectly.  However, when I tried to heat the
> Plexiglas, the copper wire expanded within the Plexiglas sandwich and the
> wires
> made a mess.  Scratch the melted Plexiglas idea.
> 
> I'm now making a jig to expedite winding a coil and covering it with
> polyurethane and polymer coating.  I'll let you know how this goes.  So far
> the
> best method I have found is to spray the surface being wound with spray
> adhesive (the stuff sold at auto stores for repairing headliners) and allow
> the
> coating to dry for two days before winding by pressing the wire on.  After
> winding, I keep the wires held down with bricks and polyurethane a small
> segment at a time, ever other day or so.  The polymer coating on top of the
> polyurethane makes an excellent dielectric sealer for the coil.
> 
> Dave
> 
> 
>