I echo and support Jim's comments below .... exactly the way I wind my coils
!
I do silver plate some of mine also.
Terry W6RU
----- Original Message -----
From: Jim <jdc@ieway.com>
To: Fisher <fisher@pldi.net>; Gerald Caouette <ve6nap@oanet.com>; Amps
Reflector <amps@contesting.com>
Sent: Saturday, January 22, 2000 8:32 AM
Subject: Re: [AMPS] Re: Tank coils
>
> I simply wind my copper coils (1/4" and 3/16" and 3/8") on a round form
of
> some kind......a 2.5 inch piece of black abs pipe......a propane
> cylinder........a round block of wood......... anything that is the
desired
> diameter......
>
> No need to stretch, heat or any other special treatment......I buy the 50
> foot coils at Home depot, etc. Just leave the coil coiled up. DO NOT
> un-wind the coil as you have purchased it. This "work hardens" the copper.
> Have someone help you.....Just wind on the form.....nice and
smooth.....Then
> use your fingers to space and form just exactly the way you need it after
> the winding is completed......
>
> Common guys! This not rocket science !
>
>
> Jim W7RY
>
>
>
> -----Original Message-----
> From: Fisher <fisher@pldi.net>
> To: Gerald Caouette <ve6nap@oanet.com>; Amps Reflector
<amps@contesting.com>
To: <amps@contesting.com>
> Date: Tuesday, January 18, 2000 12:59 PM
> Subject: Re: [AMPS] Re: Tank coils
>
>
> >
> >Hi All -
> >
> >Thanks for all replies.
> >
> >I got a small tubing bender just for the occasion and experimented with
it
> >without sand or trying to soften the tubing. I was surprised out how
> >difficult it was to work with the stuff, and that is what prompted my
> >question to the group.
> >
> >Can anyone expand a little bit on the actual winding process?
> >
> >Gerald VE6NAP, I happen to have a 3/4 HP wood lathe. How do you mean to
> use
> >a lathe to wind it?
> >
> >Thanks, Lu K5YP
> >
> >
> >>I would try using a tubing bend and bend it in 90 degree segments. You
can
> >>get them at Lowe's or Home Depot.
> >>Mike(y)
> >>W3SLK
> >
> >> Copper is unlike ferrous metals that temper when cooled quickly
> >> it goes soft _ water - cooling will allow it to become very workable
> >> clean the surface prior to forming and have silver plated after
> >> item has been formed
> >> note to much heat and you then get into other problems such as Hydrogen
> >> Embritlement
> >> if you dip in water or air cool
> >>
> >> I find it best to have a friend with a lathe do the forming with out
> >> heating the tubing ...
> >> as the tube will spring back somewhat the mandrill has to be a bit
> >> undersize ....
> >> 73
> >> de
> >> ve6nap@rac.ca
> >
> >
> >
> >--
> >FAQ on WWW: http://www.contesting.com/ampsfaq.html
> >Submissions: amps@contesting.com
> >Administrative requests: amps-REQUEST@contesting.com
> >Problems: owner-amps@contesting.com
> >Search: http://www.contesting.com/km9p/search.htm
> >
> >
>
>
> --
> FAQ on WWW: http://www.contesting.com/ampsfaq.html
> Submissions: amps@contesting.com
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>
--
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