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Re: Wire falling off the form
Tesla List wrote:
>
> >From huffman-at-fnal.gov Mon Dec 9 20:11:59 1996
> Date: Mon, 09 Dec 1996 09:25:34 -0600
> From: huffman <huffman-at-fnal.gov>
> To: Tesla List <tesla-at-poodle.pupman-dot-com>
> Subject: Wire falling off the form
>
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> Hi Group,
> There is some discussion about how to hold wire to a conical form. It must
> be a real bear because I had a cylindrical form wire problem. I wound a
> coil by hand on a PVC pipe section while watching the Bears loss a game a
> few weeks back. The coil was nice and tight and ready for the protective
> coating when I retired it to my basement for the night, and ~62deg.F. The
> next evening I prepared to coat the coil when I noticed it had become quite
> loose at the ends. I needed to rewind the coil at both ends (major pain)
> before continuing. It seems the plastic expanded quite a bit from the
> warmth of my hands wrt the copper wire. The double sided tape sounds like a
> good method to keep the wire in place until the coating is applied. Or
> maybe applying a varnish and allowing it to get tacky/gummy/semihard just
> before winding. A winding fixture would also help keep the form at one
> temperature.
> Just my $0.02
> Dave Huffman
Dave,
Use the double sided carpet tape. It is by far the best way
to wind a coil.
D. Gowin