Re: Encoders, yes or no?
I doubt that price differential will remain so forever.
In the mean time, after spending quite a bit of effort investigating (and in most cases addressing) the sources of tracking inconsistency and
By
Paul Goelz
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#83668
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Re: Encoders, yes or no?
On Mon, Mar 17, 2025 at 08:59 AM, Mark Christensen wrote:
>
> I violently *agree* with Chip on this one. To me, high resolution absolute
> axis encoders are just the latest example of Astro-Bling.
>
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Chip Louie
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#83667
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Re: Gemini/NINA spreadsheet
Hi Franco
This is where I left off on my latest attempt.
I decided to temporarily take N.I.N.A out of the equation in an effort to
rule it in/out.
Based on this, I'm wondering if it might be a
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Neil Allison
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#83666
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Re: Gemini/NINA spreadsheet
Thank you Edward. I'm still running tests so I will keep the thread updated as soon as I get any significant results. I believe east and west limits do work the same but things are a big complicated
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Franco Meconi
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#83665
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Re: Encoders, yes or no?
I violently *agree* with Chip on this one. To me, high resolution absolute axis encoders are just the latest example of Astro-Bling.
To reinforce his point on the cost issue here is a concrete
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Mark Christensen
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#83664
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Re: Gemini/NINA spreadsheet
Franco,
I do not have a Gemini-1 nor experience in southern hemisphere so I cannot confirm. I would be glad to add notes to spreadsheet based on experimental findings of the group.
Have others used
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Edward Plumer
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#83663
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Re: Gemini/NINA spreadsheet
Hi Neil, well the update is that I tried using the info on this spreadsheet and I think I finally solved the issues with the flip. The ONLY thing I changed from what's suggested on this spreadsheet is
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Franco Meconi
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#83662
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Re: Gemini/NINA spreadsheet
I feel your pain, Franco.
I am also in the southern hemisphere, using Gemini-1 and N.I.N.A.
I'm having EXACTLY the same problem :(
So I am watching this thread with great interest !!
--
Thanks and
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Neil Allison
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#83661
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Re: Encoders, yes or no?
Very nice Moon!
There are those in the OnStep group who are fascinated with very high resolution encoders.? They want to have a feed back loop that will deal with any inaccuracies that that creep
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George Cushing
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#83660
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Re: Help interpret my unguided log
Hi Paul,
Thanks for your thoughts and observations!!!
No idea what could cause or did cause the RA drift to reverse on 3/14.
The RA drift on 3/13 was about 200a/s in 40' with a PA error of 9.1. On
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Topher
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#83659
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Re: Help interpret my unguided log
Hi Topher,
A few things I see from your PHD2 log:
1. There's a significant drift in RA. May be a large mirror flop, focuser sag, or just polar misalignment. It seems to reverse direction towards the
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Paul Kanevsky
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#83658
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Re: Undermounted?
Here is my eclipse setup, not the heaviest payload in the G11G ever but close.? I had to rebalance by adding an additional 11 lb counterweight, 81 lbs total after adding the 2" AP Maxbright and
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Chip Louie
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#83657
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Re: Gemini/NINA spreadsheet
Hi Edward, this is just what I've been looking for, I've been having a really hard time trying to config my G11 to do automated flips with NINA. I have 2 questions though, do you know if this works
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Franco Meconi
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#83656
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Re: Help interpret my unguided log
Frequency tab 3/13:
Frequency tab 3/14:
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Thanks,
Christopher
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Topher
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#83655
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Re: Encoders, yes or no?
I used the Askar 151 (1052mm) quad element refractor with an ASI2600MC camera.? The supporting G11G works portably well with this assembly (~32 pounds on the saddle).
The lighting during the full
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WayBack
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#83654
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Re: Help interpret my unguided log
Log and screenshots from the following night without adjustments to the entire rig:
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Thanks,
Christopher
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Topher
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#83653
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Re: Help interpret my unguided log
Screenshots from the 3/13 log using Auto Filter:
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Thanks,
Topher
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Topher
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#83652
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Re: Encoders, yes or no?
Doug,
Looks very realistic, the same as I would expect to see in the eyepiece of a good telescope. What optics/camera did you use to take the shot?
By
Paul Kanevsky
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#83651
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Re: Encoders, yes or no?
Wayback,
Never underestimate the challenges in getting a good image of a Lunar Eclipse.
Paul
By
Paul Homer
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#83650
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Help interpret my unguided log
I do believe this is my first post!
The attached unguided guidelog is from my CG-11 with several upgrades including brass worm gear on RA, new OPW blocks both axis, Gemini-II w/HT motors, somewhat
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Topher
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#83649
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