Re: False sense of security, thread locker

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>

Hi Jim,

I also did exactly this with my disc. My set screws are course thread 
(1/4-20 x 1/2"L) and secures the tungsten in place. The set screw is 
installed into the threaded hole at the edge of the disc which runs 
down to the center of the electrode hole. The G10 composite is quite 
strong for this type of thread. I turn the set screw down onto the 
electrode so that it is nice and snug (not enough to strip the thread).

I've never had one back out or had an electrode move out of place, 
and I do check from time to time.

Take care,
Bart

Tesla list wrote:

> Original poster: "D.C. Cox" <resonance@xxxxxxxxxx>
>
>
>
> Jim --- yes, that's correct.  We have been building them this way 
> for 30 plus years and they are used 7 days/wk x 2-3 times per day in 
> museums. Everything holding up fine.
>
> Dr. Resonance
>
>
>
> > Original poster: "Jim Mora" <jmora@xxxxxxxxxxx>
> >
> > Hi Tom,
> >
> > Are you saying than to have the tungsten pressed directly into the G10 and
> > installing the set screws perpendicular to the tungsten and directly into
> > the outer rim of the g10 rotor?
> >
> > Jim Mora
> >
> > Sorry but I have seen and heard so many methods of doing this. I'm glad the
> > 12" was built first. It really is turning out nice. I'm not at all worried
> > about flying stuff but I was really surprised by the molten loctite and have
> > emailed people who rely on it to keep the nuts on their all thread.
> >
> > -----Original Message-----
> > From: Tesla list [mailto:tesla@xxxxxxxxxx]
> > Sent: Monday, April 10, 2006 8:28 PM
> > To: tesla@xxxxxxxxxx
> > Subject: Re: False sense of security, thread locker
> >
> > Original poster: CanalRay@xxxxxxx
> >
> > When you make your rotary gap wheel the methods for holding the
> > electrodes into the
> > wheel vary greatly but after 30 some odd years in the machine trade
> > and with a good number of rotary gaps under my belt the ONLY way I
> > would mount the electrodes is by using a set screw at 90 degrees to
> > the axis of the electrode. Having a close fit in the electrode's
> > mounting hole doesn't hurt either. More work but more security.
> >
> > Sincerely,
> >
> > Tom Vales