Re: [ATM] motor drive question

["eric torraca" <eric.torraca@gmail.com>]

Jarvis,

That's what I suspected. I timed it out roughly last night and it came out
to 1rmp per 12 minutes. I wasn't sure if I could get an appropriate gear to
step it up. How difficult are 1rmp motors to come by? Does anyone know of
any common sources?

Eric


On 7/25/06, Jarvis Krumbein <jkoptic@juno.com> wrote:
>
> Hi Eric,
>
> Do you know how fast the Orion motor turns?  It's probably one revolution
> every 15 minutes which matches the rate needed for a 96 tooth worm gear.
> Chances are that the rotation speed for the Scotch mount is 1 RPM so you
> will need to gear-up the Orion's speed.  It would probably be easier to
> get a 1 RPM motor and depending on the motor type, you might be able to
> use the Orion controller.
>
> Jarvis Krumbein
>
> On Mon, 24 Jul 2006 21:09:33 -0400 "eric torraca"
> <eric.torraca@gmail.com> writes:
> > Hello all,
> >
> > I'm looking for a little help for the mathematically impaired (me).
> >
> > I'm attempting to build a double arm scotch mount to bring with me
> > on a trip
> > to Ireland in August. I'm trying to follow this design:
> > http://hometown.aol.com/davetrott/page6.htm
> >
> > The actual construction is no problem, especially since he gives all
> > the
> > measurements. The problem is that the motor I'm trying to work with
> > is a
> > standard Orion telescope single axis drive/controller. So does
> > anyone know
> > if that is easily adapted to the application I want to work with?
> > Does it
> > have to be stepped up/down with gears or can I hook it directly up
> > to the
> > threaded rod and have it work reasonably well?
> >
> > Any help and advice would be appreciated!
> >
> > Best regards and clear dark skies to all
> >
> > Eric
> > _______________________________________________
> > ATM mailing list http://www.atmlist.net/
> >
> >
>
>
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