Re: bulkheads / baffles in secondaries

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

If I ever get around to making  a big one like that I was thinking 
maybe make 4-5 sections with each one made like an acrylic "table" 
with them interlocking somehow (thinking maybe 3 small blocks that 
fit inside the one above) and stacked on top of each other with 
copper spade connectors on each end. Easier to move around and setup 
with a step ladder instead of a crane or forklift. Getting way ahead 
of myself tho, first I need to live in a barn as opposed to an apt. building.

Mike



> On a similar thought, some may remember Robert Steven's coils. He 
> used external baffles (acrylic creepage discs) which added a totally 
> cool look to his coils!! Remember this pic ;}} See, there is more 
> than one way to "skin a cat". Now, that might be quite a bit of work 
> - um, maybe not!
>
> http://www.area31.org/mtc-a1.html
>
> Take care,
> Bart
>
> Tesla list wrote:
>
> > Original poster: Gomez Addams <gomezaddams@xxxxxxxxx>
> >
> > This is addressed to those who have experience installing internal
> > baffles or bulkheads in secondaries, for the purpose of preventing
> > internal creepage sparks (internal racing arcs):
> >
> > I have never used internal baffles before, and have never seemed to
> > need them on any of the secondaries I've built.  (although once,
> > someone building secondaries for me for commercial sale at a company
> > I was consulting for had racing arc problems, but I soon discovered
> > they had decided to paint the secondary form with black paint "for
> > looks" before winding it!)
> >
> > But now I am attempting to build one of the most robust, good- 
> > looking, and efficient / high-performing coils I've ever built,
> > taking into account all the new developments which have turned up
> > since I last built a coil, so I thought I'd go ahead and install
> > baffles just for the heck of it.  I seriously doubt they'll do any
> > harm, and if they'll make the secondary even more "mistake-resistant"
> > then I'm all for it.
> >
> > So my main question is: do you typically install them while building
> > the form, with holes in the center of each baffle for your winder
> > shaft (assuming you use one), or do you wind the coil first, remove
> > the end plates, install solid baffles, and replace the end plates, or
> > what?
> >
> > Since I have a large enough lathe, I _could_ wind the form without a
> > shaft going all the way through, but I prefer to use a shaft to
> > provide support to the form.
> >
> > Also, I'm thinking it would be smart to leave holes for ventilation
> > so things like glue fumes (after construction) and later, ozone, can
> > escape the interior, so perhaps baffles with center openings are best?
> >
> > Opinions?
> >
> >  - Bill Lemieux