RE: an interesting mechanical engineering problem

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>

Hello All,

I'm still an advocate of using flat copper stock. Since the turns are
further reduced in the modified plans, I would think it would want to be at
least 6" wide and sized in thickness to easily handle the skin depth. The
upper edge could be rounded to deter corona, especially if the thickness is
heavy enough.

I thought the simplest attachment method would be to cut the circumference
in 3rds or fourths as transportable. The joints would be machined to half
depth to mate together in a flush manner and made as long as seems lossless.
One side would be threaded for the bolt pattern.

Conduction could be further improved be using a copper impregnated
conductive grease that is used on radio tower connections, which I have been
using on my big discharge cap flanges. It works great to eliminate
oxidation.

Regards to all,
Jim Mora

-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Wednesday, January 10, 2007 3:46 PM
To: tesla@xxxxxxxxxx
Subject: Re: an interesting mechanical engineering problem

Original poster: Tom Perigrin <tip@xxxxxxxxxxxxxx>

At 08:56 PM 1/9/2007, you wrote:
>Original poster: Mike <megavolts61@xxxxxxxxx>
>
>  You can't get cheaper and simpler than some saw cuts and
>electrical tape.
>
>-Phil LaBudde
>(save your time and money for the IGBT's)
>
>Although I'm a big advocate of going cheaply as possible,  I'd have
>a problem with the visual asthetics of this idea when spending
>thousands on what is a showpiece.


More than that...   consider the power going through the
coil.  Consider what happens if those saw fingers only contact the
next section of pipe at a few places,  with a little copper oxide in
between the two layers of copper metal, giving a resistance of 1 ohm