Date   

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 


Re: Carrying case for Mach2

Michael Kelly
 

How long did it take from the time you ordered to shipping?

Best,

Michael

On Tuesday, September 14, 2021, 10:57:55 AM EDT, Shailesh Trivedi <strivedi@...> 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


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

Roland Christen
 


I had been in an encoder mindset and assumed incorrectly that the mount Parked based on encoder positions.
The 1100/1600 encoder mounts use the original park positions based on time. That's because the encoders are attached to the worm wheel, not the output shaft. There was no way to attach any encoders to the output shaft because there is no shaft on these mounts, just a "lazy Susan" that gets clamped to the worm wheel when the clutches are tightened.

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.

Rolando


-----Original Message-----
From: John Upton <upton@...>
To: main@ap-gto.groups.io
Sent: Mon, Sep 13, 2021 10:20 pm
Subject: Re: [ap-gto] Question: ROLAND’S GTO QUICK STAR DRIFT METHOD - 2020 VERSION

Roland,

   Thanks for the quick answer regarding orthogonality not affecting the polar alignment method.

On Mon, Sep 13, 2021 at 04:00 PM, Roland Christen wrote:
This question is quite easy: The parks are governed by the time you have set in the keypad (or your laptop). If you are off by 1 hour, the parks will be off by 15 degrees in RA. For every second that you are off, your park positions will be off by 15 arc seconds.
   This was a bit of a surprise to me but after thinking about it, I think I understand. It would have to work this way for non-encoder mounts to work correctly and there is no reason to rewrite the underlying code for encoder mounts. I had been in an encoder mindset and assumed incorrectly that the mount Parked based on encoder positions. I see the error in my thought process.

   To bump my question in the second post, do you or Ray have any clarifications regarding the interactions / interoperability of the Ortho Model performed by the KeyPad versus the pointing model created by APCC? The questions I want to understand are:

  1. I assume the APCC model takes precedence when a KeyPad Ortho Model has been built. Is that correct?
  2. Does the APCC model erase the results of the KeyPad Ortho Model or simply override it?
  3. If the APCC point corrections are turned off, does the most recent KeyPad Ortho Model once again take effect or does a new one need to be built?
   For some observing and simple single object imaging sessions, I think I would like to just have the orthogonality error corrected without creating / running a pointing model. Ideally, in that situation, I would prefer not to have to rerun the KeyPad Ortho Model at the beginning of each session when I don't want to run APPM.


John

--
Roland Christen
Astro-Physics


Re: Carrying case for Mach2

Dean Jacobsen
 
Edited

Hi, congratulations on the new mount.

Search on Mach2 case.

Here is a thread from last year that I started on the same topic:

https://ap-gto.groups.io/g/main/topic/74420921#70483
--
Dean Jacobsen
Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/


Re: Where are the instructions for the AP1100 junction box?

Tom Blahovici
 

Never mind. Only needed with encoders.


Carrying case for Mach2

Shailesh Trivedi
 

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


Re: Newbie question about APPM pointing model location

Shailesh Trivedi
 

Thanks Ray


Re: Newbie question about APPM pointing model location

Ray Gralak
 

Shailesh,

 

> To view the "ProgramData" folder you will need to go to the Windows control panel , select "Appearance and

> Personalization", and find the "folder options" dialog. Select the View Tab, make the changes shown above,

> and click OK. You should now be able to see and access the "ProgramData" folder.

 

You can easily open these folders from APCC and APPM.

 

For example, from APPM, you can open a Windows explore instance in the folder with the PNT files and logs by clicking the menu: File->Logs Directory as shown in this screenshot:

 

 

-Ray

 

> -----Original Message-----

> From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Shailesh Trivedi

> Sent: Monday, September 13, 2021 2:42 PM

> To: main@ap-gto.groups.io

> Subject: Re: [ap-gto] Newbie question about APPM pointing model location

>

> Some quirk of Win10 - see below

>

> To view the "ProgramData" folder you will need to go to the Windows control panel , select "Appearance and

> Personalization", and find the "folder options" dialog. Select the View Tab, make the changes shown above,

> and click OK. You should now be able to see and access the "ProgramData" folder.

>

> Shailesh


Re: Jupiter and Saturn with AP 130 EDF

John Desbiens
 

Thanks Jim


Re: Does your Mach2 setup look like this?

Jeffc
 


Here’s the Mach2 with the Meade12-ACF (this is an early version with the smooth glossy tube and the “RC” label).  Also attached is a Clement focuser (kinda heavy) , Lumicon GEG with reducer lens, some AP 2.7” extensions and the QHY-268m camera & filterwheel.   On top of the OTA is a UPBV2 which weighs nearly nothing. 

-jeff




On Sep 13, 2021, at 5:14 PM, Roland Christen via groups.io <chris1011@...> wrote:


In order to see the effects of really overloading the mount, I put about 80 lb of equipment on it and moved the counterweights way down on an extended shaft, as you can see in the image. Yes indeed I got some ringing at the end of a long slew, especially when the scope was pointing up towards the zenith. With a little change in the parameters i got it to be perfectly stable, and it tracks like a champ. I don't recommend putting this much on the mount, and it would be better to have the counterweights higher up the shaft of course.

However, if you have anything resembling this setup, or are using a smaller diameter counterweight shaft with heavy counterweights, and have ringing at the end of a slew, then drop me a line at chris1011@... and I can help. Please include a quick snapshot of your setup, if possible, and the amount of weight the mount is carrying if you know that.

Rolando




--
Roland Christen
Astro-Physics


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

John Upton
 

Roland,

   Thanks for the quick answer regarding orthogonality not affecting the polar alignment method.

On Mon, Sep 13, 2021 at 04:00 PM, Roland Christen wrote:
This question is quite easy: The parks are governed by the time you have set in the keypad (or your laptop). If you are off by 1 hour, the parks will be off by 15 degrees in RA. For every second that you are off, your park positions will be off by 15 arc seconds.
   This was a bit of a surprise to me but after thinking about it, I think I understand. It would have to work this way for non-encoder mounts to work correctly and there is no reason to rewrite the underlying code for encoder mounts. I had been in an encoder mindset and assumed incorrectly that the mount Parked based on encoder positions. I see the error in my thought process.

   To bump my question in the second post, do you or Ray have any clarifications regarding the interactions / interoperability of the Ortho Model performed by the KeyPad versus the pointing model created by APCC? The questions I want to understand are:

  1. I assume the APCC model takes precedence when a KeyPad Ortho Model has been built. Is that correct?
  2. Does the APCC model erase the results of the KeyPad Ortho Model or simply override it?
  3. If the APCC point corrections are turned off, does the most recent KeyPad Ortho Model once again take effect or does a new one need to be built?
   For some observing and simple single object imaging sessions, I think I would like to just have the orthogonality error corrected without creating / running a pointing model. Ideally, in that situation, I would prefer not to have to rerun the KeyPad Ortho Model at the beginning of each session when I don't want to run APPM.


John


Re: Does your Mach2 setup look like this?

Bill Long
 

What is that scope and camera combo on the bottom?


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of M Hambrick <mhambrick563@...>
Sent: Monday, September 13, 2021 4:01 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Does your Mach2 setup look like this?
 
Hi Roland

I don't have any ringing with my setup but I was wondering if having those cable bundles just hanging off the back of the cameras in your setup can cause guiding issues with non-AE mounts. 

I use a similar cabling arrangement as yours with my non-AE 1100 mount (see photo), but I suspected that the long, free hanging cable loops might have created some guiding issues, so I started tying them off at the mount to make a shorter loop to minimize the weight pulling on the camera.

Mike


Re: Does your Mach2 setup look like this?

Bill Long
 

Quite the setup. The Mach 2 is an amazingly good performer even under significant load. I personally think it's the best encoder mount on the market in it's price range and it's not even close. Would love to see some raw subs from the Mak Cass Astrograph sometime. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Monday, September 13, 2021 4:23 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Does your Mach2 setup look like this?
 

Is that your 10" Mak Cass Astrograph?
Yes, 10 F6.3 Mak-Cass, QSI-WSG8, 130GTX, QuadTT, and ZWO 2600 Cmos. Along with several dovetail plates, etc.

Rolando


-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Sep 13, 2021 5:58 pm
Subject: Re: [ap-gto] Does your Mach2 setup look like this?

That's awesome. I have not had any problems with my 12.5" iDK and PL16803 on the Mach 2. I did not try adding a GTX on top though. I would not have enough counterweights to safely do that though.

Is that your 10" Mak Cass Astrograph?


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Monday, September 13, 2021 2:14 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: [ap-gto] Does your Mach2 setup look like this?
 
In order to see the effects of really overloading the mount, I put about 80 lb of equipment on it and moved the counterweights way down on an extended shaft, as you can see in the image. Yes indeed I got some ringing at the end of a long slew, especially when the scope was pointing up towards the zenith. With a little change in the parameters i got it to be perfectly stable, and it tracks like a champ. I don't recommend putting this much on the mount, and it would be better to have the counterweights higher up the shaft of course.

However, if you have anything resembling this setup, or are using a smaller diameter counterweight shaft with heavy counterweights, and have ringing at the end of a slew, then drop me a line at chris1011@... and I can help. Please include a quick snapshot of your setup, if possible, and the amount of weight the mount is carrying if you know that.

Rolando




--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics


Re: Does your Mach2 setup look like this?

 

Mike,

 

It is always best to tie off the cables to support them.

 

Clear Skies,

Marj Christen

Astro-Physics

11250 Forest Hills Road

Machesney Park, IL 61115

Phone: 815-282-1513

www.astro-physics.com

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of M Hambrick
Sent: Monday, September 13, 2021 6:01 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Does your Mach2 setup look like this?

 

Hi Roland

I don't have any ringing with my setup but I was wondering if having those cable bundles just hanging off the back of the cameras in your setup can cause guiding issues with non-AE mounts. 

I use a similar cabling arrangement as yours with my non-AE 1100 mount (see photo), but I suspected that the long, free hanging cable loops might have created some guiding issues, so I started tying them off at the mount to make a shorter loop to minimize the weight pulling on the camera.

Mike

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