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I came to notice some backlash when I moved my telescope back and forth. Initially I thought it must have been RA or DEC, but then I realized that it was the base.
I tried to tighten the bolt underneath the base, it got slightly better but did not fix the problem. The bolt is already very tight so I dont want to tighten it any further.
Does anyone see a similar issue? It probably wont affect the imaging but it may affect polar alignment if someone accidentally moves the mount between sessions.
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Yanzhe,
That is set to a foot/pound tightness. I should be left as is. If it is tightened too much, it will make azimuth adjustments difficult. Instead, check that the both “captain’s wheels are
snug on the polar forks. Also there should be three knobs securing the Mach2 to the pier/tripod. They must be at 120 degrees with respect to each other. Hand tightening them will not give a secure mounting. Use a hex key and give them an extra snugging.
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
toggle quoted message
Show quoted text
From: main@ap-gto.groups.io <main@ap-gto.groups.io>
On Behalf Of yanzhe liu
Sent: Sunday, July 25, 2021 3:03 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] How to tighten Mach2 base
I came to notice some backlash when I moved my telescope back and forth. Initially I thought it must have been RA or DEC, but then I realized that it was the base.
I tried to tighten the bolt underneath the base, it got slightly better but did not fix the problem. The bolt is already very tight so I dont want to tighten it any further.
Does anyone see a similar issue? It probably wont affect the imaging but it may affect polar alignment if someone accidentally moves the mount between sessions.
|
|
|
On Mon, Jul 26, 2021 at 8:43 AM George < george@...> wrote:
Yanzhe,
That is set to a foot/pound tightness. I should be left as is. If it is tightened too much, it will make azimuth adjustments difficult. Instead, check that the both “captain’s wheels are
snug on the polar forks. Yes, I belive so. Also there should be three knobs securing the Mach2 to the pier/tripod. They must be at 120 degrees with respect to each other. Hand tightening them will not give a secure mounting. Use a hex key and give them an extra snugging.
The problem I am seeing is without Tripd. I turn the mount up side down, and I can feel the backlash if I move the base back and forth. Anything else should I check?
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
I came to notice some backlash when I moved my telescope back and forth. Initially I thought it must have been RA or DEC, but then I realized that it was the base.
I tried to tighten the bolt underneath the base, it got slightly better but did not fix the problem. The bolt is already very tight so I dont want to tighten it any further.
Does anyone see a similar issue? It probably wont affect the imaging but it may affect polar alignment if someone accidentally moves the mount between sessions.
|
|
|
The problem I am seeing is without Tripd. I turn the mount up side down, and I can feel the backlash if I move the base back and forth.
Anything else should I check?
The two push-pull azimuth adjuster knobs need to be fully tight against the stop. These are used for azimuth adjustment, so if one is backed off, the mount can rotate if you pull on the scope.
Roland
-----Original Message-----
From: yanzhe liu <liuyanzhe@...>
To: main@ap-gto.groups.io
Sent: Mon, Jul 26, 2021 8:13 am
Subject: Re: [ap-gto] How to tighten Mach2 base
On Mon, Jul 26, 2021 at 8:43 AM George < george@...> wrote:
Yanzhe,
That is set to a foot/pound tightness. I should be left as is. If it is tightened too much, it will make azimuth adjustments difficult. Instead, check that the both “captain’s wheels are
snug on the polar forks.
Yes, I belive so.
Also there should be three knobs securing the Mach2 to the pier/tripod. They must be at 120 degrees with respect to each other. Hand tightening them will not give a secure mounting. Use a hex key and give them an extra snugging.
The problem I am seeing is without Tripd. I turn the mount up side down, and I can feel the backlash if I move the base back and forth.
Anything else should I check?
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
I came to notice some backlash when I moved my telescope back and forth. Initially I thought it must have been RA or DEC, but then I realized that it was the base.
I tried to tighten the bolt underneath the base, it got slightly better but did not fix the problem. The bolt is already very tight so I dont want to tighten it any further.
Does anyone see a similar issue? It probably wont affect the imaging but it may affect polar alignment if someone accidentally moves the mount between sessions.
-- Roland Christen Astro-Physics
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Yanzhe,
Contact me directly at email address below. I’m sure that it is a simple solution.
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
toggle quoted message
Show quoted text
From: main@ap-gto.groups.io <main@ap-gto.groups.io>
On Behalf Of yanzhe liu
Sent: Monday, July 26, 2021 1:14 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] How to tighten Mach2 base
On Mon, Jul 26, 2021 at 8:43 AM George <george@...> wrote:
Yanzhe,
That is set to a foot/pound tightness. I should be left as is. If it is tightened too much, it will make azimuth adjustments difficult.
Instead, check that the both “captain’s wheels are snug on the polar forks.
Also there should be three knobs securing the Mach2 to the pier/tripod. They must be at 120 degrees with respect to each other.
Hand tightening them will not give a secure mounting. Use a hex key and give them an extra snugging.
The problem I am seeing is without Tripd. I turn the mount up side down, and I can feel the backlash if I move the base back and forth.
Anything else should I check?
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
I came to notice some backlash when I moved my telescope back and forth. Initially I thought it must have been RA or DEC, but then I realized that it was the base.
I tried to tighten the bolt underneath the base, it got slightly better but did not fix the problem. The bolt is already very tight so I dont want to tighten it any further.
Does anyone see a similar issue? It probably wont affect the imaging but it may affect polar alignment if someone accidentally moves the mount between sessions.
|
|
|
George,
Thanks!
I did not get time to try the suggestion yet. I will let you know how it goes.
Yanzhe
On Tue, Jul 27, 2021 at 11:31 AM George < george@...> wrote:
Yanzhe,
Contact me directly at email address below. I’m sure that it is a simple solution.
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
On Mon, Jul 26, 2021 at 8:43 AM George <george@...> wrote:
Yanzhe,
That is set to a foot/pound tightness. I should be left as is. If it is tightened too much, it will make azimuth adjustments difficult.
Instead, check that the both “captain’s wheels are snug on the polar forks.
Also there should be three knobs securing the Mach2 to the pier/tripod. They must be at 120 degrees with respect to each other.
Hand tightening them will not give a secure mounting. Use a hex key and give them an extra snugging.
The problem I am seeing is without Tripd. I turn the mount up side down, and I can feel the backlash if I move the base back and forth.
Anything else should I check?
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
I came to notice some backlash when I moved my telescope back and forth. Initially I thought it must have been RA or DEC, but then I realized that it was the base.
I tried to tighten the bolt underneath the base, it got slightly better but did not fix the problem. The bolt is already very tight so I dont want to tighten it any further.
Does anyone see a similar issue? It probably wont affect the imaging but it may affect polar alignment if someone accidentally moves the mount between sessions.
|
|
|
Yanzhe,
I will watch for your information. Please use my Astro-Physics email below.
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
toggle quoted message
Show quoted text
From: main@ap-gto.groups.io <main@ap-gto.groups.io>
On Behalf Of yanzhe liu
Sent: Tuesday, July 27, 2021 4:51 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] How to tighten Mach2 base
George,
I did not get time to try the suggestion yet. I will let you know how it goes.
On Tue, Jul 27, 2021 at 11:31 AM George <george@...> wrote:
Yanzhe,
Contact me directly at email address below. I’m sure that it is a simple solution.
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
On Mon, Jul 26, 2021 at 8:43 AM George <george@...> wrote:
Yanzhe,
That is set to a foot/pound tightness. I should be left as is. If it is tightened too much, it will make azimuth adjustments difficult.
Instead, check that the both “captain’s wheels are snug on the polar forks.
Also there should be three knobs securing the Mach2 to the pier/tripod. They must be at 120 degrees with respect to each other.
Hand tightening them will not give a secure mounting. Use a hex key and give them an extra snugging.
The problem I am seeing is without Tripd. I turn the mount up side down, and I can feel the backlash if I move the base back and forth.
Anything else should I check?
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
I came to notice some backlash when I moved my telescope back and forth. Initially I thought it must have been RA or DEC, but then I realized that it was the base.
I tried to tighten the bolt underneath the base, it got slightly better but did not fix the problem. The bolt is already very tight so I dont want to tighten it any further.
Does anyone see a similar issue? It probably wont affect the imaging but it may affect polar alignment if someone accidentally moves the mount between sessions.
|
|
|
Yanzhe,
I shall await hearing from you. Please use my Astro-Physics email address below.
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
toggle quoted message
Show quoted text
From: main@ap-gto.groups.io <main@ap-gto.groups.io>
On Behalf Of yanzhe liu
Sent: Tuesday, July 27, 2021 4:51 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] How to tighten Mach2 base
George,
I did not get time to try the suggestion yet. I will let you know how it goes.
On Tue, Jul 27, 2021 at 11:31 AM George <george@...> wrote:
Yanzhe,
Contact me directly at email address below. I’m sure that it is a simple solution.
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
On Mon, Jul 26, 2021 at 8:43 AM George <george@...> wrote:
Yanzhe,
That is set to a foot/pound tightness. I should be left as is. If it is tightened too much, it will make azimuth adjustments difficult.
Instead, check that the both “captain’s wheels are snug on the polar forks.
Also there should be three knobs securing the Mach2 to the pier/tripod. They must be at 120 degrees with respect to each other.
Hand tightening them will not give a secure mounting. Use a hex key and give them an extra snugging.
The problem I am seeing is without Tripd. I turn the mount up side down, and I can feel the backlash if I move the base back and forth.
Anything else should I check?
Regards,
George
George Whitney
Astro-Physics, Inc.
Phone: 815-222-6538 (direct line)
Phone: 815-282-1513 (office)
Email:
george@...
I came to notice some backlash when I moved my telescope back and forth. Initially I thought it must have been RA or DEC, but then I realized that it was the base.
I tried to tighten the bolt underneath the base, it got slightly better but did not fix the problem. The bolt is already very tight so I dont want to tighten it any further.
Does anyone see a similar issue? It probably wont affect the imaging but it may affect polar alignment if someone accidentally moves the mount between sessions.
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