Date   

Re: Question: ROLAND’S GTO QUICK STAR DRIFT METHOD - 2020 VERSION

John Upton
 

Roland,

On Tue, Sep 14, 2021 at 09:17 PM, Roland Christen wrote:
Again, time. The altitude of any object in RA is determined by time. The altitude can also vary somewhat depending on how level the mount head is.
   Ok, I think I finally get it. While the Park position is encoder based, the actual RA slew position depends on time. That might need an altitude adjustment to compensate. Thank you for your patience. 


John


Re: Carrying case for Mach2

Shailesh Trivedi
 

Thank you Shane, i will review it.

Shailesh


Re: Carrying case for Mach2

Shailesh Trivedi
 

Karen,

Thank you for the clarification. Even though it took ~ 2 years (2 years 5 months to be precise)  but most challenges were beyond AP's control like Bill Long points out, AP did a great job; the timelines were skewed due to acts beyond anyone's control, including delays of ~4 months due to Covid related delays with Renishaw. We all hope that the worst is behind us.

Shailesh


Re: Question: ROLAND’S GTO QUICK STAR DRIFT METHOD - 2020 VERSION

Roland Christen
 


what factors will cause the Altitude adjustment portion of your improved 2020 polar alignment procedure to see largish errors in Altitude? I was seeing between about 40 and 50 arc-minutes error after having carefully leveling the OTA at Park 5.
Again, time. The altitude of any object in RA is determined by time. The altitude can also vary somewhat depending on how level the mount head is.

Rolando


-----Original Message-----
From: John Upton <upton@...>
To: main@ap-gto.groups.io
Sent: Tue, Sep 14, 2021 8:45 pm
Subject: Re: [ap-gto] Question: ROLAND’S GTO QUICK STAR DRIFT METHOD - 2020 VERSION

Roland,

On Tue, Sep 14, 2021 at 11:41 AM, Roland Christen wrote:
On the other hand, for the Mach2 we decided to go with a separate shaft onto which the encoder is attached. This shaft rotates with the scope, rather than with the worm wheel, therefore you can unlock the clutches and move the scope manually and the encoders will follow that movement. This allowed us to use the encoders to determine the park positions rather than basing it on time. Therefore, on the Mach2, the parks are always in the same position, and we also have a home position that is encoder based and can be replicated to the arc sec level every time.
   OK, so the Mach2 is handled as an exception in the code compared to the other AP mounts. Park positions for the Mach2 are determined by the encoders as I originally thought.

   That brings me back to my original question:

   If I carefully level the Mount / OTA in Park 5 position, what factors will cause the Altitude adjustment portion of your improved 2020 polar alignment procedure to see largish errors in Altitude? I was seeing between about 40 and 50 arc-minutes error after having carefully leveling the OTA at Park 5. (The level I used was carefully calibrated and read the same value after turning it 180°. There was no +/- change in the two readings.)


John

--
Roland Christen
Astro-Physics


Re: Question: ROLAND’S GTO QUICK STAR DRIFT METHOD - 2020 VERSION

John Upton
 

Roland,

On Tue, Sep 14, 2021 at 11:41 AM, Roland Christen wrote:
On the other hand, for the Mach2 we decided to go with a separate shaft onto which the encoder is attached. This shaft rotates with the scope, rather than with the worm wheel, therefore you can unlock the clutches and move the scope manually and the encoders will follow that movement. This allowed us to use the encoders to determine the park positions rather than basing it on time. Therefore, on the Mach2, the parks are always in the same position, and we also have a home position that is encoder based and can be replicated to the arc sec level every time.
   OK, so the Mach2 is handled as an exception in the code compared to the other AP mounts. Park positions for the Mach2 are determined by the encoders as I originally thought.

   That brings me back to my original question:

   If I carefully level the Mount / OTA in Park 5 position, what factors will cause the Altitude adjustment portion of your improved 2020 polar alignment procedure to see largish errors in Altitude? I was seeing between about 40 and 50 arc-minutes error after having carefully leveling the OTA at Park 5. (The level I used was carefully calibrated and read the same value after turning it 180°. There was no +/- change in the two readings.)


John


Re: Carrying case for Mach2

Shane Ramotowski
 

Hi Shailesh,

Here is a link to a post with my solution:
<https://ap-gto.groups.io/g/main/message/79079>

It's a tight fit...I have to take the saddle off and rotate the altitude axis just about all the way.  But it's nice and small and _very_ protected.  Pelican doesn't mess around when it comes to good cases!

- Shane

On 9/14/2021 8:57 AM, Shailesh Trivedi wrote:
I was notified yesterday that my Mach2 is shipping this week. I am excited.

I tried unsuccessfully, to find related threads as I am sure this has been asked before, but please indulge. Can one of you wonderful folks here recommend a carrying case for Mach2?

Thanks,

Shailesh
--
Shane Ramotowski
kor@...
https://www.kor-astro.net


Re: Does your Mach2 setup look like this?

Nick Iversen
 

Is there a secret option on the Mach1 to download the upgrade to a Mach2? I can't find it.


Re: Carrying case for Mach2

Michael Kelly
 

Oh thanks for the clarification!!!  I sent an email to AP to get on the Mach2 list. Maybe get on the 1100 list as well!!!!

On Tuesday, September 14, 2021, 05:32:47 PM EDT, Karen Christen <karen@...> wrote:


Hello Astro-Nuts:

 

For clarification:

  • We introduced the Mach2 at NEAF in April 2019.  At that time we opened the Notify Me list on our website.  (No one has waited 3 years.)
  • We accepted the first orders for Mach2s in September 2019 (2 years ago).
  • While Mr Trivedi was on the notification list since Spring 2019, we reached his name and he placed his order in April 2021.
  • Between supply chain challenges, an almost 3-month factory shutdown, and more, Covid has definitely delayed production of our entire line of products.

 

We’re steadily working to make mounts, scopes, and accessories.  We’re well into our next 1600GTO production run, and have started the next Mach2 run, as well.  We anticipate

Mach2 notification to begin early in 2022, maybe sooner if things smooth out a bit.  We appreciate your patience.

 

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Bill Long
Sent: Tuesday, September 14, 2021 4:17 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Carrying case for Mach2

 

Also the list went up while the final design and testing phases were still in progress. Then the production run started and COVID-19 hit. So the timelines are all skewed.

 

AP did an amazing job getting mounts to people given the circumstances. 

 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Shailesh Trivedi <strivedi@...>
Sent: Tuesday, September 14, 2021 1:52 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Carrying case for Mach2

 

Michael,

Discount 2020 due to covid, so about 2 years.

Shailesh


--
Karen Christen
Astro-Physics


Re: Carrying case for Mach2

Karen Christen
 

Hello Astro-Nuts:

 

For clarification:

  • We introduced the Mach2 at NEAF in April 2019.  At that time we opened the Notify Me list on our website.  (No one has waited 3 years.)
  • We accepted the first orders for Mach2s in September 2019 (2 years ago).
  • While Mr Trivedi was on the notification list since Spring 2019, we reached his name and he placed his order in April 2021.
  • Between supply chain challenges, an almost 3-month factory shutdown, and more, Covid has definitely delayed production of our entire line of products.

 

We’re steadily working to make mounts, scopes, and accessories.  We’re well into our next 1600GTO production run, and have started the next Mach2 run, as well.  We anticipate

Mach2 notification to begin early in 2022, maybe sooner if things smooth out a bit.  We appreciate your patience.

 

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Bill Long
Sent: Tuesday, September 14, 2021 4:17 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Carrying case for Mach2

 

Also the list went up while the final design and testing phases were still in progress. Then the production run started and COVID-19 hit. So the timelines are all skewed.

 

AP did an amazing job getting mounts to people given the circumstances. 

 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Shailesh Trivedi <strivedi@...>
Sent: Tuesday, September 14, 2021 1:52 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Carrying case for Mach2

 

Michael,

Discount 2020 due to covid, so about 2 years.

Shailesh


--
Karen Christen
Astro-Physics


Re: Carrying case for Mach2

Bill Long
 

Also the list went up while the final design and testing phases were still in progress. Then the production run started and COVID-19 hit. So the timelines are all skewed.

AP did an amazing job getting mounts to people given the circumstances. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Shailesh Trivedi <strivedi@...>
Sent: Tuesday, September 14, 2021 1:52 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Carrying case for Mach2
 
Michael,

Discount 2020 due to covid, so about 2 years.

Shailesh


Re: Carrying case for Mach2

Shailesh Trivedi
 

Michael,

Discount 2020 due to covid, so about 2 years.

Shailesh


Re: Carrying case for Mach2

Michael Kelly
 

3 years?!?!  As in tres anos?  Holy smokes!!!!!

On Tuesday, September 14, 2021, 04:29:03 PM EDT, Shailesh Trivedi <strivedi@...> wrote:


Dean,

Thank you for pointing me to the thread on the case topic.

I will review it.

Shailesh


Re: Carrying case for Mach2

Shailesh Trivedi
 

Dean,

Thank you for pointing me to the thread on the case topic.

I will review it.

Shailesh


Re: Carrying case for Mach2

Shailesh Trivedi
 

Michael,

If you mean sign up for notification, to this week it is about 3 years. But recall 2020 was pretty much washed out, so technically 2.something years

Shailesh


Re: My brand new AP1100 - play in both RA and DEC axis

Roland Christen
 

Hello,
You did not get this mount directly from us at Astro-Physics. We shipped this mount in February, and we never ship things loosely in the box, so whoever shipped it to you did not pack it correctly.

The play that you see on the worm wheel is not normal. It appears that the worm is not fully engaged with the worm wheel. If you open the side cover you will see a lever. It is almost certain that the previous person loosened the two screws on the backstop adjustment, which allows the worm to come out of mesh. Please read the instructions in the manual for adjusting the backstop on our spring loaded gearbox.

If you need more help, please consult with Howard at AP.

Roland Christen
Astro-Physics Inc.

-----Original Message-----
From: Horia <ATM@...>
To: main@ap-gto.groups.io
Sent: Tue, Sep 14, 2021 1:13 pm
Subject: [ap-gto] My brand new AP1100 - play in both RA and DEC axis

Today I got the chance to take my  AP1100 mount out of the wrappings and set it up on the pier.
 
  1. The altitude bar was completely loose inside the RA-axis box and managed to produce some deep scars on the coating of the side walls of the polar fork. I would suggest to put it in a bubble wrap before dropping it in there.
 
  1. Both the RA and the DEC axis have some (a lot of) play between the worm and the worm wheel.  An iPhone movie showing a close up of the worm wheel on the DEC axis:
 
 
I do not think this is as expected. How do I get rid of it?
 
Kind regards,
Horia
 

--
Roland Christen
Astro-Physics


Re: My brand new AP1100 - play in both RA and DEC axis

Horia
 

Thank you Howard,

 

I will call you the day after tomorrow. I must drive to the mount location.

 

Kind regards,

Horia

 

Von: main@ap-gto.groups.io <main@ap-gto.groups.io> Im Auftrag von Howard Hedlund
Gesendet: Dienstag, 14. September 2021 21:27
An: main@ap-gto.groups.io
Betreff: Re: [ap-gto] My brand new AP1100 - play in both RA and DEC axis

 

Hi Horia,
Please contact me at the AP office number:  815.282.1513 or via email at   howard at astro-physics dot com.
That is not the way things ship from our factory.  Were the packages damaged?  Was Customs a problem?  
I look forward to hearing from you.
Howard


Re: My brand new AP1100 - play in both RA and DEC axis

Howard Hedlund
 

Hi Horia,
Please contact me at the AP office number:  815.282.1513 or via email at   howard at astro-physics dot com.
That is not the way things ship from our factory.  Were the packages damaged?  Was Customs a problem?  
I look forward to hearing from you.
Howard


My brand new AP1100 - play in both RA and DEC axis

Horia
 

Today I got the chance to take my  AP1100 mount out of the wrappings and set it up on the pier.

 

  1. The altitude bar was completely loose inside the RA-axis box and managed to produce some deep scars on the coating of the side walls of the polar fork. I would suggest to put it in a bubble wrap before dropping it in there.

 

  1. Both the RA and the DEC axis have some (a lot of) play between the worm and the worm wheel.  An iPhone movie showing a close up of the worm wheel on the DEC axis:

 

https://www.dropbox.com/s/hgfdrli8w4zr1ud/RA-Play.MOV?dl=0

 

I do not think this is as expected. How do I get rid of it?

 

Kind regards,

Horia

 


Re: Does your Mach2 setup look like this?

Roland Christen
 


Roland: in most of the images of your rigs they are sitting on portable piers rather than permanent
Always have to be able to change mounts and setups for testing issues that come up.

Rolando


-----Original Message-----
From: Joseph Beyer <jcbeyer2001@...>
To: main@ap-gto.groups.io
Sent: Tue, Sep 14, 2021 12:32 pm
Subject: Re: [ap-gto] Does your Mach2 setup look like this?

I'm hoping my Mach1 will someday grow up to look exactly like your Mach2.  There'll likely need to be an exchange of money (does A-P take cryptocurrency yet?) along with some other mundane tasks of course!  Roland: in most of the images of your rigs they are sitting on portable piers rather than permanent.  Is this the way you have your observatories set up? For flexibility maybe?

Joe 

--
Roland Christen
Astro-Physics


Re: Does your Mach2 setup look like this?

Joseph Beyer
 

I'm hoping my Mach1 will someday grow up to look exactly like your Mach2.  There'll likely need to be an exchange of money (does A-P take cryptocurrency yet?) along with some other mundane tasks of course!  Roland: in most of the images of your rigs they are sitting on portable piers rather than permanent.  Is this the way you have your observatories set up? For flexibility maybe?

Joe 

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