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Clock Drive for Old Edmund Scientific Reflector



 
 
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  #1  
Old April 1st 04, 01:33 AM
Fleemo
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Default Clock Drive for Old Edmund Scientific Reflector

I have a cherished 25 year old Edmund Scientifc 6" reflector still in
excellent working condition, and I'm thinking about adding a clock
drive to it. I believe Edmund offered a clock drive as optional
equipment. Anyone know where I might obtain one today, or whether a
modern-day clock drive would work on the equatorial mount pedestal?

-Fleemo
  #2  
Old April 2nd 04, 06:08 AM
LarryG
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Default Clock Drive for Old Edmund Scientific Reflector

On 31 Mar 2004 16:33:36 -0800, Fleemo wrote:

I have a cherished 25 year old Edmund Scientifc 6" reflector still in
excellent working condition, and I'm thinking about adding a clock
drive to it. I believe Edmund offered a clock drive as optional
equipment. Anyone know where I might obtain one today, or whether a
modern-day clock drive would work on the equatorial mount pedestal?

-Fleemo


The manufacturer's version may no longer be available, except by extremely
good fortune. IIRC, the Edmund clock drive consisted of
a slow synchronous motor (AC), a worm / helical-gear pair, a mounting
bracket, and some hardware to form a slip clutch to mount on the end
of the polar axle.

One trend popular many years ago was the tangent arm drive, which was often
jury-rigged out of available hardware. This would likely
be the most promising way of achieving your goal.

Cheers,
Larry G.



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  #3  
Old April 2nd 04, 06:08 AM
LarryG
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Default Clock Drive for Old Edmund Scientific Reflector

On 31 Mar 2004 16:33:36 -0800, Fleemo wrote:

I have a cherished 25 year old Edmund Scientifc 6" reflector still in
excellent working condition, and I'm thinking about adding a clock
drive to it. I believe Edmund offered a clock drive as optional
equipment. Anyone know where I might obtain one today, or whether a
modern-day clock drive would work on the equatorial mount pedestal?

-Fleemo


The manufacturer's version may no longer be available, except by extremely
good fortune. IIRC, the Edmund clock drive consisted of
a slow synchronous motor (AC), a worm / helical-gear pair, a mounting
bracket, and some hardware to form a slip clutch to mount on the end
of the polar axle.

One trend popular many years ago was the tangent arm drive, which was often
jury-rigged out of available hardware. This would likely
be the most promising way of achieving your goal.

Cheers,
Larry G.



--
Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/
  #4  
Old April 6th 04, 05:59 PM
Fleemo
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Posts: n/a
Default Clock Drive for Old Edmund Scientific Reflector

The manufacturer's version may no longer be available, except by extremely
good fortune. IIRC, the Edmund clock drive consisted of
a slow synchronous motor (AC), a worm / helical-gear pair, a mounting
bracket, and some hardware to form a slip clutch to mount on the end
of the polar axle.

One trend popular many years ago was the tangent arm drive, which was often
jury-rigged out of available hardware. This would likely
be the most promising way of achieving your goal.


Thanks Larry. I'll do a search on the net and see if I can come up
with any info on a tangent arm drive.

I appreciate the input. It'd be good to see this ol' classic able to
track stars, perhaps even pull off a little astrophotography in its
old age.

-F
  #5  
Old April 6th 04, 05:59 PM
Fleemo
external usenet poster
 
Posts: n/a
Default Clock Drive for Old Edmund Scientific Reflector

The manufacturer's version may no longer be available, except by extremely
good fortune. IIRC, the Edmund clock drive consisted of
a slow synchronous motor (AC), a worm / helical-gear pair, a mounting
bracket, and some hardware to form a slip clutch to mount on the end
of the polar axle.

One trend popular many years ago was the tangent arm drive, which was often
jury-rigged out of available hardware. This would likely
be the most promising way of achieving your goal.


Thanks Larry. I'll do a search on the net and see if I can come up
with any info on a tangent arm drive.

I appreciate the input. It'd be good to see this ol' classic able to
track stars, perhaps even pull off a little astrophotography in its
old age.

-F
  #10  
Old April 8th 04, 03:49 AM
Fleemo
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Default Clock Drive for Old Edmund Scientific Reflector

(socalsw) wrote in message . com...
Fleemo,

I do not know if this will work for you, but Surplus Shed has the
Meade EQ motor for 19.95 at
http://www.surplusshed.com/pages/item/m2058.html

Obviously you would need the other hardware. Good luck with your
search.

Clear skies



Many thanks, Erik. I really appreciate it. Looks quite promising.

-F
 




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