RE: [TCML] RE: Winding the primary

["Terry Oxandale" <Toxandale@xxxxxxx>]

I did a hybrid between the two. I drilled the holes in the PVC sheet
(3/8", and sometimes 1/2" thick) standoffs where I want the round tube
conductor located. Then on a table saw, I cut along the common
centerline of these holes, thus splitting the standoff for an lower and
upper "comb" (actually a very slight comb, but the remaining parts of
the holes that were not removed by the saw blade are deep enough to
secure the conductor) so that the conductor can be set in the lower
portion and then clamped in place with the upper portion (using nylon
screws and tapped holes).

Here is a link to a diagram of the above:
http://fototime.com/A8F977A4FEA0844/standard.jpg


(un)Terry


-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
Behalf Of Stephen J. Hobley
Sent: Wednesday, July 09, 2008 8:02 AM
To: Tesla Coil Mailing List
Subject: RE: [TCML] RE: Winding the primary

Yes that is our problem. 
 
We debated to comb or not before we made them, and none-comb won.
 
Steve
 
Stephen Hobley Photography
www.stephenhobley.com
317 201 4281
 
The Laser Harp Project - www.stephenhobley.com/build

________________________________

From: tesla-bounces@xxxxxxxxxx on behalf of Lau, Gary
Sent: Wed 7/9/2008 8:45 AM
To: Tesla Coil Mailing List
Subject: [TCML] RE: Winding the primary



What is the nature of your standoffs?  I've heard some struggle with
primary supports that were actually a series of holes through plastic
plates, and they were trying to thread the tubing THROUGH the holes.  A
sure way to go crazy and make a mess!

Primary supports are typically combs - a series of slots that the tubing
simply drops into.  See http://www.laushaus.com/tesla/primary.htm.  Is
this similar to what you have?

BTW, in my response to the post asking about what kind of hardware to
fasten the supports with, I assumed that this was to attach the supports
to the underlying base plate, and metal screws are fine there.  I later
realized that I also use nylon screws to fasten hold-down strips to the
tops of the combs (see photos in above link), as the heads straddle two
primary turns and could promote a short between adjacent turns.  There's
nothing mysterious or insidious about using metal hardware near the
primary or secondary.  One just needs to exercise common sense about not
putting conductive things where they may create an unintentional short.

Regards, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of Stephen J. Hobley
> Sent: Tuesday, July 08, 2008 10:18 PM
> To: Tesla Coil Mailing List
> Subject: [TCML] Winding the primary
>
> We just realized that we can't get the primary wound into the
standoffs without
> some major kinking.
>
> Is there a trick to winding the copper tubing into the standoffs with
the minimum of
> distortion?
> It's proving to be harder than we first thought.
>
> Steve

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