RE: [APML] Astro-Physics Field Flatner

["D Kaestner" <kaestner@surewest.net>]

Steve,
I have the Orion XT10 with the 80mm guide scope!
That puts the mount at its limits! To say the least!
It's rated at 40 lbs.

Dan K.

-----Original Message-----
From: astro-photo-bounces@seds.org [mailto:astro-photo-bounces@seds.org]On
Behalf Of steve banbury
Sent: Monday, August 29, 2005 4:18 PM
To: Discussion of Film Astrophotography
Subject: Re: [APML] Astro-Physics Field Flatner

Hi Dan---how heavy of a scope are you putting on the mount?
I had a CG5 mount which had to be very well balanced or it
wouldn't  move my 8 inch SCT.

Good luck--Steve

D Kaestner wrote:

>Steve,
>
>That could be I suppose!
>There have been the occasions when I have gotten this mount to track! And
>very well I might add.
>If nothing else I have removed all the slop and shouldn't see all the
>bumping around thru the tracking scope.....lol
>Still kind-a new at this guys so please forgive the ignorance!
>I haven't been able to get it out to test since going thru it so time will
>tell...............
>Thanks again for the responses.
>
>Dan K.
>
>-----Original Message-----
>From: astro-photo-bounces@seds.org [mailto:astro-photo-bounces@seds.org]On
>Behalf Of steve banbury
>Sent: Monday, August 29, 2005 3:56 PM
>To: Discussion of Film Astrophotography
>Subject: Re: [APML] Astro-Physics Field Flatner
>
>Hi Dan---if your scope/mount isn't perfectly polar aligned, your field
>of view will
>tend to drift up or down in declination.  How fast is a function of the
>misalignment.
>For reasonably well aligned systems only an occasional adjustment in Dec
>would
>be required.
>
>How fast is your easterly drift?  Could it be your clock (stepper motor
>pulses) are a
>little slow?
>
>steve
>
>
>D Kaestner wrote:
>
>
>
>>Ladies & Gents,
>>
>>I have a real stupid question!
>>With an EQ mount does the Dec motor run while tracking?
>>Or, is it used just for adjustments.
>>Makes sense if polar aligned that RA would be the only one running! Right?
>>The reason I ask is that while tracking I'm getting Easterly drift.
>>The maker of the mount suggested tearing it down to check gear wear and
for
>>burrs!
>>It's the Orion EQ3 mount. Did a complete tear down and found nothing major
>>other then not enough grease on the tapered roller bearings. That and a
>>whole lotta slop between drive shaft & gears!!!!!!
>>I was running just the mount and noticed that the Dec motor wasn't running
>>unless controller buttons were pushed!
>>Then was stupid enough to write to Orion about the problem........LOL
>>There response was it doesn't run but for adjustments? And now that I
think
>>about it!   LOL
>>Can someone maybe give a reason for the easterly drift??????
>>
>>
>>Thanks
>>Dan K.
>>
>>
>>
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>>
>>
>>
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