Re: Toroid Design Features

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: Toroid Design Features
From: Tesla List <tesla-at-stic-dot-net>
Date: Sun, 9 Nov 1997 23:14:23 -0600
Approved: tesla-at-stic-dot-net

From: 	Chuck Curran[SMTP:ccurran-at-execpc-dot-com]
Sent: 	Sunday, November 09, 1997 7:21 PM
To: 	Tesla List
Subject: 	Re: Toroid Design Features

>
>From: Alfred C. Erpel[SMTP:aerpel-at-op-dot-net]
>Sent: Sunday, November 09, 1997 10:08 AM
>To: 'Tesla List'; Tesla List
>Subject: Re: Toroid Design Features
>
>
>    Your biggest cost having this part spun will be the tooling that it is
>spun on ($1200 ?). I have been wondering about a faceted toroid.  Break the
>toroid up into many sections (8, 10, 20 or more) and then you can bend each
>(identical)section from flat sheet metal and weld/braze them together to
>form a toroid consisting entirely of planes.  This could look just as cool
>as a round toroid (cooler?) and could be formed using standard press brake
>tooling.  I don't know whether the lines and points on this faceted toroid
>would be a plus or minus towards the desired sparking effect of a tesla
>coil.  If you pay for tooling to spin a curved toroid, (ignoring tooling
>cost) the cost of each curved toroid would be less than a faceted toroid,
>but if you are buying only one toroid the total cash outlay would be less
>for a faceted toroid.
>  I can't comment (no nothing) on capacitance issues.

Alfred:
Thanks for your comments, tooling was an immediate concern for me too until
I received a video tape from a local job shop that specializes in short run
metal spinning.  While they do require tooling also, they have in their
video a number of new CNC metal spinning lathes and claim to also have quite
a stock of forms.  I would not be asking for an exact radius, specifically
due to not wanting to pay for exact tooling.  I would be wide open in this
search to accept a radius close to what I need, if tooling was already
available.  I plan on getting more details this week.

Chuck