Re: Rotary Gap Design

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Jon Danniken" <danniken@xxxxxxxxxxx>

Thanks Jim, I would appreciate seeing the apparatus.

Thanks also to the other responders; that gives me a lot of ideas to work
with.

Jon


> Original poster: "James Zimmerschied"
> Jon,
> the balance has a hardened shaft with tapered slides that engage the
> hole in the rotor. There are supports on each end with a knife edge
> that the shaft rides on. To balance, the shaft is mounted in the
> rotor and the assembly is set on the knife edge supports. If off
> balance, the rotor will tend to rotate so the heavy side is down.
> Then mark the heavy side, drill a small hole or two in a non-stress
> area and repeat until there is no particular tendency to settle.
>
> I will save your e-mail address and take a picture of it with my
> digital camera, next time I am over at Bob's place.
>
> Jim

>
> Original poster: "Jon Danniken"
> <<mailto:danniken@xxxxxxxxxxx>danniken@xxxxxxxxxxx>
>
>   > Original poster: "James Zimmerschied">
>   >
>   > Hello all,
>   > there is some good discussion going on concerning rotary gap design
>   > especially with regards to electrode attachment. I haven't heard much
>   > said about balancing the rotor. My friend Bob Svangren has built a
>   > number of rotary gaps and one thing he is very concerned about is
>   > balancing the unit. He has a balance machine used for model airplane
>   > props or other small items. On a rotary I built and Bob helped on, we
>   > spent a lot of time balancing and removing small bits of mass ( hole
> drilling).
>   >
>   > The end result is a very smooth running rotary.
>
> Hi Jim,
>
> Do remember the elements for the balancing machine?  I've been thinking of
> constucting one of these, and would appreciate any insight as to how one
is
> put together.  So far, all I can think of is mounting the motor on a table
> with springs and marking where the spinning rotor goes high.