Re: varnish with guts ?

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

Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>

Hi Chris,

Anything's possible. The tapered former is an excellent approach (slight
taper should be fine).

Another approach might be this:
Build a former which can be made into 2 parts along length. With the former
in place, insert a
few tubes to brace the 2 outer halves and a couple strips of masking tape
around the outer ends
to hold the 2 halves together. Then wrap with paper (something porous to
ensure whatever coating
is used thoroughly dries). Wind the coil, coat it, let dry. Remove the
inner braces and remove
the 2 halves  (probably need to angle edges which butt together so the
halves fall inward
easily). All that is left is the coil. Leave the inner paper in place and
coat the inside.
Whatever you do, make sure there's a relatively thick coating on the
outside for strength.

Just thoughts,
Bart

Tesla list wrote:

> Original poster: "PotLuck by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<potluck-at-xmission-dot-com>
>
> Hi Chris,
> I dunno. I think even if something was found to hold the windings in place
> then the windings would be so tight (tension of one wrap multiplied by 1000
> or more) that it would be impossible to slide it off even with paper.
>
> However, if the coilform was built so it could collapse a bit without
> sticking to the windings then there may be a chance.
>
> Rick W.
>
> ----- Original Message -----
> From: Tesla list <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Saturday, April 13, 2002 4:53 PM
> Subject: varnish with guts ?
>
> > Original poster: "Chris Swinson by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <exxos-at-cps-games.co.uk>
> >
> > Hi all,
> >
> > I want to build a lot of coils but the pipe is costing me a small fortune.
> > I was thinking that the varnish does a really good job of holding the wire
> > in place. So I was thinking if I just got 1 length of tube and cover it in
> > paper or something, then wind the coil on that. If there is something like
> > vanish but maybe thicker or something that will keep the coil solid so I
> can
> > slide it off the pipe and the varnish stuff will keep it all solid. Thus
> no
> > need for the pipe then.  Something thick like paint but stronger would be
> > ideal. Has anyone got any ideas for anything I could use to try this idea
> > out ?
> >
> > Thanks,
> > Chris
> >
> >
> >
> >