Date   

Re: PEC Training

Ray Gralak
 

Hi Joe,

How often should PEC training be redone? I have an older 1200 mount with a CP3 that carries a sixteen inch
Newtonian in a permanent setup that is used about 5 nights/month.
You should probably check it every 3-4 months to see if it needs a new curve. Apply a new curve if the old curve isn't correcting as it did when it was originally loaded.

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of jlm0rris
Sent: Sunday, May 17, 2020 6:23 AM
To: main@ap-gto.groups.io
Subject: [ap-gto] PEC Training

How often should PEC training be redone? I have an older 1200 mount with a CP3 that carries a sixteen inch
Newtonian in a permanent setup that is used about 5 nights/month.

Joe Morris



PEC Training

jlm0rris
 

How often should PEC training be redone?  I have an older 1200 mount with a CP3 that carries a sixteen inch Newtonian in a permanent setup that is used about 5 nights/month.

Joe Morris


Re: Mach2 Status Update

Tom Blahovici
 

Understood. 
It seems that Illinois is hard hit. Good that it is being managed well. Good luck to all of you.
Tom


Re: Mach2 Status Update

Harley Davidson
 

Karen

I heard on the news this morning that Rockford, IL. had another outbreak of the virus. Stay safe.

tony

On 5/16/2020 1:10 PM, Karen Christen wrote:

Hello Tom,

 

I’m not entirely positive I understand your question, but I think you’re asking about whether we’re filling orders.  Since March 23, only Roland, Marj, and I are working at Astro-Physics.  Our outstanding office and tech support crew are working from home, and one of our assembly folks has been doing initial assembly of Mach2s at home.  The remainder of our staff – our amazing machinists, finishing folks, assemblers, and shipping expert – are not allowed to work at this time, meaning production is completely stalled.  We’re crossing our fingers that our region will meet the goals that will permit us to bring these folks back into the shop on June 1, but that is very much up in the air.

 

With only the 3 of us in the shop we are doing what we can.  We’re filling and shipping any orders we’re able, including accessories we have on the shelf (such as counterweights).  Roland is doing all final assembly and testing of scopes and mounts.   Marj and I have done some assembly of accessories as we’ve run out of shelf stock.  This is all work that would normally be done by 10 other people who are experts and more efficient.  Consequently, orders that require extra assembly or testing, especially uncommon items, are on hold at present.  A polar scope, for example, requires handling and testing by Roland, however he’s been buried with 92mm Stowaways and Mach2GTOs for the last 2 months. 

 

We understand this is a frustrating situation for you, and I apologize for the delays.  We appreciate your understanding. 

Karen Christen

Astro-Physics

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Tom Blahovici
Sent: Friday, May 15, 2020 11:59 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Status Update

 


Re: Advice needed: I can rock RA in Mach1GTO (very small), should I adjust?

Charles Thompson
 

I would wait for more knowledgeable people to chime in because it can be a couple things. In my case it was gear mesh and was easily fixed by doing a re-mesh procedure from the instructions.





Thanks,
Charles

Sent from mobile device.


-------- Original message --------
From: "Cheng-Yang Tan via groups.io" <cytan299@...>
Date: 5/16/20 1:34 PM (GMT-06:00)
To: main@ap-gto.groups.io
Subject: [ap-gto] Advice needed: I can rock RA in Mach1GTO (very small), should I adjust?

Hi guys,
   While contemplating whether to grease my gears, I discovered that I can rock my RA "left and right" in the Park 3 position of my Mach1GTO. I can just barely see it on the RA marks but can definitely feel it. I can't do the same rocking motion on my AP1100. Note: Mount is powered OFF when I do the rock.

  Should I do the "Checking and Adjusting the gearbox backstops in RA and Dec" from page 32 of the manual?

Thanks!

cytan


Advice needed: I can rock RA in Mach1GTO (very small), should I adjust?

Cheng-Yang Tan
 

Hi guys,
   While contemplating whether to grease my gears, I discovered that I can rock my RA "left and right" in the Park 3 position of my Mach1GTO. I can just barely see it on the RA marks but can definitely feel it. I can't do the same rocking motion on my AP1100. Note: Mount is powered OFF when I do the rock.

  Should I do the "Checking and Adjusting the gearbox backstops in RA and Dec" from page 32 of the manual?

Thanks!

cytan


Re: Mach2 Status Update

thefamily90 Phillips
 

Very understandable Karen. We are opening up in S.C. and hopefully soon you will be as well. Hang in there. We’re going to make it through this!

Jim


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Karen Christen <karen@...>
Sent: Saturday, May 16, 2020 1:10:18 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach2 Status Update
 

Hello Tom,

 

I’m not entirely positive I understand your question, but I think you’re asking about whether we’re filling orders.  Since March 23, only Roland, Marj, and I are working at Astro-Physics.  Our outstanding office and tech support crew are working from home, and one of our assembly folks has been doing initial assembly of Mach2s at home.  The remainder of our staff – our amazing machinists, finishing folks, assemblers, and shipping expert – are not allowed to work at this time, meaning production is completely stalled.  We’re crossing our fingers that our region will meet the goals that will permit us to bring these folks back into the shop on June 1, but that is very much up in the air.

 

With only the 3 of us in the shop we are doing what we can.  We’re filling and shipping any orders we’re able, including accessories we have on the shelf (such as counterweights).  Roland is doing all final assembly and testing of scopes and mounts.   Marj and I have done some assembly of accessories as we’ve run out of shelf stock.  This is all work that would normally be done by 10 other people who are experts and more efficient.  Consequently, orders that require extra assembly or testing, especially uncommon items, are on hold at present.  A polar scope, for example, requires handling and testing by Roland, however he’s been buried with 92mm Stowaways and Mach2GTOs for the last 2 months. 

 

We understand this is a frustrating situation for you, and I apologize for the delays.  We appreciate your understanding. 

Karen Christen

Astro-Physics

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Tom Blahovici
Sent: Friday, May 15, 2020 11:59 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Status Update

 

What about accessories? I have a polar scope on order. What if I need a counterweight?
Thanks.


--
Karen Christen
Astro-Physics


Re: Mach2 Status Update

Karen Christen
 

Hello Tom,

 

I’m not entirely positive I understand your question, but I think you’re asking about whether we’re filling orders.  Since March 23, only Roland, Marj, and I are working at Astro-Physics.  Our outstanding office and tech support crew are working from home, and one of our assembly folks has been doing initial assembly of Mach2s at home.  The remainder of our staff – our amazing machinists, finishing folks, assemblers, and shipping expert – are not allowed to work at this time, meaning production is completely stalled.  We’re crossing our fingers that our region will meet the goals that will permit us to bring these folks back into the shop on June 1, but that is very much up in the air.

 

With only the 3 of us in the shop we are doing what we can.  We’re filling and shipping any orders we’re able, including accessories we have on the shelf (such as counterweights).  Roland is doing all final assembly and testing of scopes and mounts.   Marj and I have done some assembly of accessories as we’ve run out of shelf stock.  This is all work that would normally be done by 10 other people who are experts and more efficient.  Consequently, orders that require extra assembly or testing, especially uncommon items, are on hold at present.  A polar scope, for example, requires handling and testing by Roland, however he’s been buried with 92mm Stowaways and Mach2GTOs for the last 2 months. 

 

We understand this is a frustrating situation for you, and I apologize for the delays.  We appreciate your understanding. 

Karen Christen

Astro-Physics

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Tom Blahovici
Sent: Friday, May 15, 2020 11:59 PM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Status Update

 

What about accessories? I have a polar scope on order. What if I need a counterweight?
Thanks.


--
Karen Christen
Astro-Physics


1600GTO mechanical adjustments?

Mike Shade
 

I have some questions about mechanical adjustments on a first generation 1600GTO. I am having issues with the RA axis, specifically tracking. There seems a lot of periodic error that is hard to guide out. Stars are elongated in RA and I have large guiding errors in RA. This is guiding through the scope with an on camera chip. I have of course trained innumerable PEC curves and they seem to help for a bit and then not as much, hence want to make sure that I have the mechanical issues addressed before scampering off in other directions.

There is a Planewave CDK17 on the mount, maybe 120#OTA, plus camera, rotating focuser, and counterweights. Maybe 225# or more total. How tight do the clutches need to be on the mount? Permanent setup, used for imaging. What I have been doing is finger tight and about 1/3 turn past this but wonder if I am maybe getting some slippage as they are not tight enough. And, is it best to adjust this with the mount in PARK 3 (OTA north, counterweights down)?

There are two spring loaded plungers, accessible from the top of the RA/DEC motor housing. When the mount was recently greased, these came out. They were put back in how they came out and the bolt was tightened down. Question is, are these tightened snug, all the way or backed off a little bit? I had one of the red mounts years ago and they were all the way in and out a certain number of turns to set properly.

Is there anything in the gear train itself that can contribute to RA tracking errors? Anything to check? There was nothing obvious when greased.

In regards to setting gear mesh, set it as per manual except when tightening the bolts, will put fingers under the motor housing to lift ever so slightly and then tighten. I think George offered this for the first generation mounts. I tighten the left, center, and then right bolt then go back and snug in that order. Correct?

On my old 1200GTO, the thrush washer on the end of the worm comes loose and creates interesting problems and I have to go back in and tighten it up and put RTV on the threads to prevent this from backing off. Is this possible with the 1600s gear train?

Anything else to check here that I am missing? This is becoming a frustrating problem.





Mike J. Shade
Mike J. Shade Photography:
mshadephotography.com

In War: Resolution
In Defeat: Defiance
In Victory: Magnanimity
In Peace: Goodwill
Sir Winston Churchill
Already, in the gathering dusk, a few of the stars are turning on their lights.
Vega, the brightest one, is now dropping towards the west. Can it be half
a year since I watched her April rising in the east? Low in the southwest
Antares blinks a sad farwell to fall...
Leslie Peltier, Starlight Nights

International Dark Sky Association: www.darksky.org


Re: Mach2 Status Update

Tom Blahovici
 

What about accessories? I have a polar scope on order. What if I need a counterweight?
Thanks.


Re: Mach 1 Grease

Tom Blahovici
 

I used simple green to do my mount. No residue.
Tom


Re: AP Eagle for 8-10"

stlrvus
 

The Eagle's height is very adjustable.  I raise it when going visual with refractors.  I use the lower settings for imaging, and with bigger optics.

Jose


Re: AP Eagle for 8-10"

Harley Davidson
 

I have the ATS 12" pier. I did put bigger, heavier handles on it to make it easier to carry. Thing is HEAVY! I also have the 6" Eagle tripod with an 8" extension and have no issues when using it with the 1100 and a 175 f/8.

tony


On 5/15/2020 2:47 PM, Dean Jacobsen wrote:
On Fri, May 15, 2020 at 06:54 AM, Frost David wrote:
Just get an ATS pier.  They make 8” and 10” ones and their great!  I’ve got a 10” for my 1100 and it is stable as a rock, although heavy.
 
Yes, the ATS piers are nice... and they are heavy.  I had one for my AP1200GTO.  It was super nice.  Beautiful paint job.  Very solid.  However, I was grateful when there was someone around to help me lift the darn thing into or out of my F350 4WD.  ;-)  As the years passed the 1200 and the ATS pier just got to be too much to lift into the truck, and then out at the remote site, and then back in when it was time to go home, and then back out when I got home.... I actually started just leaving the mount and the pier in the truck from one imaging strip to the next. ;-) 
 
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: AP Eagle for 8-10"

Dean Jacobsen
 
Edited

On Fri, May 15, 2020 at 06:54 AM, Frost David wrote:
Just get an ATS pier.  They make 8” and 10” ones and their great!  I’ve got a 10” for my 1100 and it is stable as a rock, although heavy.
 
Yes, the ATS piers are nice... and they are heavy.  I had one for my AP1200GTO.  It was super nice.  Beautiful paint job.  Very solid.  However, I was grateful when there was someone around to help me lift the darn thing into or out of my F350 4WD.  ;-)  As the years passed the 1200 and the ATS pier just got to be too much to lift into the truck, and then out at the remote site, and then back in when it was time to go home, and then back out when I got home.... I actually started just leaving the mount and the pier in the truck from one imaging trip to the next. ;-)  I lightened things up by trading for an AP900GTO and bought a Losmandy HD pier. 
 
--
Dean Jacobsen
http://astrophoto.net/wp/ 
Image Gallery - http://astrophoto.net/wp/image-gallery/
Astrobin - https://www.astrobin.com/users/deanjacobsen/ 


Re: AP Eagle for 8-10"

Dominique Durand
 

On Fri, May 15, 2020 at 07:18 PM, Bill Long wrote:
I think the Eagle is fine without the extension on it. Why do you need 8 more inches? 
I have an observatory with a cement pier to take photos and my Eagle to make astronomical animations where the visitors are standing, with the raising I noticed that it was much more practical, I planned a small stepladder for kids.


Re: AP Eagle for 8-10"

Bill Long
 

Ah okay, I am an imager and dont do visual. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of thefamily90 Phillips <thefamily90@...>
Sent: Friday, May 15, 2020 10:34 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] AP Eagle for 8-10"
 
Seated looking at/near Zenith with diagonal the eyepiece height might be perfect


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Friday, May 15, 2020 1:18:50 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] AP Eagle for 8-10"
 
I think the Eagle is fine without the extension on it. Why do you need 8 more inches? 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Dominique Durand via groups.io <dom33.durand@...>
Sent: Friday, May 15, 2020 10:17 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] AP Eagle for 8-10"
 
For a refractor it is the position which seems to me the most suitable. I have the same Eagle + mach1 installation and an AP130 or C11 on it, but I have an 8 "extension.


Re: AP Eagle for 8-10"

thefamily90 Phillips
 

Seated looking at/near Zenith with diagonal the eyepiece height might be perfect


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Friday, May 15, 2020 1:18:50 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] AP Eagle for 8-10"
 
I think the Eagle is fine without the extension on it. Why do you need 8 more inches? 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Dominique Durand via groups.io <dom33.durand@...>
Sent: Friday, May 15, 2020 10:17 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] AP Eagle for 8-10"
 
For a refractor it is the position which seems to me the most suitable. I have the same Eagle + mach1 installation and an AP130 or C11 on it, but I have an 8 "extension.


Re: AP Eagle for 8-10"

Bill Long
 

I think the Eagle is fine without the extension on it. Why do you need 8 more inches? 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Dominique Durand via groups.io <dom33.durand@...>
Sent: Friday, May 15, 2020 10:17 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] AP Eagle for 8-10"
 
For a refractor it is the position which seems to me the most suitable. I have the same Eagle + mach1 installation and an AP130 or C11 on it, but I have an 8 "extension.


Re: AP Eagle for 8-10"

Dominique Durand
 
Edited

For a refractor it is the position which seems to me the most suitable. I have the same Eagle + mach1 installation and an AP130 or C11 on it, but I have an 8 "extension.
It is comfortable for the visual.


Re: AP Eagle for 8-10"

Bill Long
 

I put mine in the highest position I could. 

Did I do it wrong?




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Dominique Durand via groups.io <dom33.durand@...>
Sent: Friday, May 15, 2020 9:23 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] AP Eagle for 8-10"
 
For refractors, you have to put the Eagle in high position, as on the example on Youtube.

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