Re: RSG electrode holders?

["Jason Zuberer" <tesla-at-xxxxxxxxxxxx> (by way of Terry Fritz <twftesla-at-xxxxxxxxxx>)]

    I am no authority, but something as weak as a ceiling tile would only be
asking for trouble. If by some miracle the electrodes stayed in place when
it was spun up to 1200 or so RPM it would basically be a grenade waiting to
explode. All of the rotary gaps that I have seen are made with G-10 or
phenolic disks that can withstand the g-force and heat.

    IMHO
                Jason


----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, November 15, 2000 3:33 PM
Subject: RSG electrode holders?


> Original poster: jduva-at-baytechnologies-dot-net
>
> Hey gang!
>   I have some questions about the mounting of smooth tungsten electrodes
on
> a rotary gap.  Namely...how do you do it?  Assuming the electrode has no
> threads cut into, you'd have to use some sort of holder, yes?  What is it?
> :)  If anybody knows if this thing exists on McMaster-Carr, too, that'd be
> great!
>
> I'm currently experimenting with a ceiling tile that I have for tacking
> balsa plane part to while glue sets, by cutting a rotary disk out of it.
I
> chopped a square out of a corner, superglued a little section of .5" PVC
> through the middle, stuck that on my .5" motor shaft, marked a rough
circle
> on the spinning square section, took it off, and cut a rough circle with a
> utility knife.  With that done, I stuck it back on, spun it up, and used a
> fill to even up the outer edges and take off any bumps on the top and
> bottom.  I soaked it in some left-over polyurethane and am waiting for it
to
> dry over the next year or so.
>    Will this even work?  It only took me about 30 minutes to get it all
> shaped up, so it's no big loss if it turns out to be too weak after the
poly
> dries completely.  I don't even know if it will withstand moderate heating
> around the electrodes.  I wanted to toss out the idea, though, and get
some
> feedback.
>
> Thanks everybody for your help in the past and in the future.
> Stay safe!
>
> -Joe Duva
>
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