Date   

Re: 1200GTO Pointing Issues

Roland Christen
 

Don't use Autostart YES until you get it to first work with Resume from Present Position and Autostart NO. Once it works and points correctly you can switch to YES and it will start automatically from any position that you left the scope in, even if you left it pointing to China.

Rolando



-----Original Message-----
From: carlburton2001 <cburton52@...>
To: main@ap-gto.groups.io
Sent: Thu, Aug 13, 2020 12:15 pm
Subject: Re: [ap-gto] 1200GTO Pointing Issues

Hi Rolando
I'll make sure the time is correct.
Thanks


Re: 1200GTO Pointing Issues

carlburton2001
 

Hi Rolando
I'll make sure the time is correct.
Thanks


Re: 1200GTO Pointing Issues

Roland Christen
 

Remember also that your time, date and location must be correct in the keypad. If your first slew is off by 45 degrees it is most likely that one of these is wrong, probably the time, daylight savings etc.

Rolando



-----Original Message-----
From: carlburton2001 <cburton52@...>
To: main@ap-gto.groups.io
Sent: Thu, Aug 13, 2020 10:21 am
Subject: Re: [ap-gto] 1200GTO Pointing Issues

Hi Ray
I've done the update and can connect to mount.  I have changed to Aotoconnect=Yes from the keypad.  There a couple clear nights here in MI so hopefully I can get this ironed out.

Thanks Peter & everyone for the help.  Once I get the observatory straight it will be great to flip a switch and go.

Carl


Re: 1200GTO Pointing Issues

carlburton2001
 

Hi Ray
I've done the update and can connect to mount.  I have changed to Aotoconnect=Yes from the keypad.  There a couple clear nights here in MI so hopefully I can get this ironed out.

Thanks Peter & everyone for the help.  Once I get the observatory straight it will be great to flip a switch and go.

Carl


Re: Mach1 and GTOCP4 Yellow Light

Roland Christen
 

Sorry, I had assumed that the mount was operated in the condition we received it, which was with the lever in the half way position. There was a lot of wear on the gearwheel and that could be one way that this happens. Another way would be if the tops of the teeth were allowed to ratchet past each other if you happened to unlock the lever in a place other than Park3 position. Again i caution to set the back stop gently if and when you feel the need to adjust it. For RA you should never have to adjust it, and rarely ever for Dec. The backstop has zero effect on backlash in either case.

We did clean and completely overhaul your mount, checked the PE to be smooth and under 7 arc sec P-P, re-greased your gears and tested everything twice before sending it out. My caution is simply that, please make adjustments carefully and gently if you feel the need to adjust something. The mount should be ready to go without any adjustment as is.

Rolando



-----Original Message-----
From: Mikko Viljamaa <mikko.viljamaa@...>
To: main@ap-gto.groups.io
Sent: Thu, Aug 13, 2020 9:00 am
Subject: Re: [ap-gto] Mach1 and GTOCP4 Yellow Light

Rolando I find your comment disappointing assuming that I have done something like this. I have never left the lever to any other position than fully engaged. As a matter of fact I don't touch my mount, it just stays put and as you might remember, these latest problems started as an electrical issue (connection) when again, nothing had changed. The only time I have adjusted the backstop was months ago when I had the weird plate solving problem. After that the mount worked for months before this latest issue occurred.


- Mikko


Re: 1200GTO Pointing Issues

Peter Bresler
 

I replaced my Mach1 with a 1200 and have not really had any problems. I sync with SGP by centering a star selected with coordinates. My mount did get "lost" after I did some adjustments using the hand controller. I released the clutches, put it back in park 5, reinitialized, and all is ok. Goto's are very accurate.

Peter


Re: 1200GTO Pointing Issues

Roland Christen
 

Unpark from Present Position is more accurate.
In fact if you are permanently set up, put the keypad in Autoconnect YES and your unparking will be automatic and more accurate.

Rolando



-----Original Message-----
From: carlburton2001 <cburton52@...>
To: main@ap-gto.groups.io
Sent: Wed, Aug 12, 2020 11:56 pm
Subject: [ap-gto] 1200GTO Pointing Issues

Hi All
I'm setting up my observatory with all the software.  My 1200GTO mount with CP4 is having pointing issues.  I saw that it was recommended that I select Unpark from position 4.  I tried that with no difference.  Is my keypad database corrupt?  Should I reload my database?

Thanks

Carl


Re: 1200GTO Pointing Issues

carlburton2001
 

Hi Ray
I tried unparking from APCC.  When I chose unpark from position 4 I got a warning asking if I was sure sure about unparking from 4 because I risk running I to pier.  I hit OK then resume from last park went into window and greyed out.  I'll check my version.

Am I supposed to put the mount in park 3 when I select resume from park 3?  I normally use position 4.
Thanks


Re: Mach1 and GTOCP4 Yellow Light

Mikko Viljamaa
 

Rolando I find your comment disappointing assuming that I have done something like this. I have never left the lever to any other position than fully engaged. As a matter of fact I don't touch my mount, it just stays put and as you might remember, these latest problems started as an electrical issue (connection) when again, nothing had changed. The only time I have adjusted the backstop was months ago when I had the weird plate solving problem. After that the mount worked for months before this latest issue occurred.


- Mikko


Re: 1200GTO Pointing Issues

Ray Gralak
 

Hi Carl,

Are you unparking from the AP hand controller or the driver/APCC? If you are planning to use Windows software, you should unpark via the driver/APCC.

Also, try unparking from Park 3 instead of Park 4. Park 3 has the scope pointing at the celestial pole and counterweight shaft pointing directly to the ground. If you are using APCC then power cycle the mount and let APCC initialize the mount.

BTW, the latest APCC Pro version is 1.8.4.1. The link is here:

http://www.apastrosoftware.com/apcc_download/APCC_Pro_Setup_1.8.4.1.exe

-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 carlburton2001
Sent: Wednesday, August 12, 2020 9:56 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] 1200GTO Pointing Issues

Hi All
I'm setting up my observatory with all the software. My 1200GTO mount with CP4 is having pointing issues. I saw
that it was recommended that I select Unpark from position 4. I tried that with no difference. Is my keypad
database corrupt? Should I reload my database?

Thanks

Carl


Re: 1200GTO Pointing Issues

carlburton2001
 

Hi Pete
Yes it's been awhile.   I'm really retired this time.  All software is up to date.
Thanks
Carl


Re: 1200GTO Pointing Issues

Pete Mumbower
 

Hey Carl!

Hope you get this resolved quick, looking forward to see some images from you again. As for the problem, is all the mount/keypad firmware up to date?

Pete


Re: 1200GTO Pointing Issues

carlburton2001
 
Edited

Hi Bryan
I'm guessing maybe 45 degrees or so to the East, nowhere near close.  Checked my timezone, set at 5(Eastern time).  I never could get mount to find a star past transit, but only stopped trying at 12:30 am.

Yes the error is repeating.   When I go to park 4 the ra looks to be in park 2 with counterweights down and dec correct.

When I synch, I use TheSky, the mount looks to be over correct object but when I slew ota always goes to west side of mount. If I try to use keypad to synch I get error in APCC about target error too far in ra to synch.

Thanks


Re: 1200GTO Pointing Issues

Worsel
 

Carl

Please provide more info about 'pointing issues'.

For example,
How much is pointing off on the first star?
Does the error change after a sync?
Is the error repeatable?

It is difficult to diagnose 'issues'.

Bryan


1200GTO Pointing Issues

carlburton2001
 

Hi All
I'm setting up my observatory with all the software.  My 1200GTO mount with CP4 is having pointing issues.  I saw that it was recommended that I select Unpark from position 4.  I tried that with no difference.  Is my keypad database corrupt?  Should I reload my database?

Thanks

Carl


APCC-Pro manual temperature/pressure entry question

Bob Benamati
 

Ray,

For some reason, the temperature entry box for the pointing model has disappeared. I thought maybe updating to the latest version would fix it, but unfortunately it hasn't. The pressure box IS still there, so not sure if this is truly abnormal (screenshot attached).

Not having a weather station, I originally created a model at 10C, and that info is what is still populating APPM whenever I've redone a model. Not sure where APPM is drawing that from and if I can/should change it when I do go to redo a model in the future.

Overall, APCC has been working wonders even for my old 900 CP3, so this is just more of a curiosity than an urgent need for resolution!

Thanks!
Bob


Re: Mach1 and GTOCP4 Yellow Light

Roland Christen
 

We believe the worm was damaged when you left the unlock lever in the half way position on the RA gearbox. that lever has to be fully seated clockwise. Also make sure that you read the instructions in the manual for setting the backstop. If you put too much pressure on the backstop adjustment, you will produce more worm tooth wear. Setting high pressure on the backstop will not reduce backlash, in fact it will tend to make it worse. The backstop should be set gently, not with huge pressure or force. Please read the instructions carefully if you make any adjustments to the worm mesh. The manual is available on-line as well as the written form that you received with the mount.

Rolando

-----Original Message-----
From: Mikko Viljamaa <mikko.viljamaa@...>
To: main@ap-gto.groups.io
Sent: Wed, Aug 12, 2020 1:46 pm
Subject: Re: [ap-gto] Mach1 and GTOCP4 Yellow Light

To put a closure on this, the mount was shipped to AP a few weeks ago and I received a mail today indicating that the issue is fixed. The attached service report states; "Confirmed that mount is not communicating. Unsuccessfully attempted to reprogram the digital board, so replaced and programmed for mount, version P01-14 and Wi-Fi program. Disassembled damaged RA worm and worm wheel and removed grease; removed burrs which were breaking off the worm wheel resulting in slivers."

Looking forward to get the mount back and start the imaging again.


- Mikko


Re: Mach1 and GTOCP4 Yellow Light

Mikko Viljamaa
 

To put a closure on this, the mount was shipped to AP a few weeks ago and I received a mail today indicating that the issue is fixed. The attached service report states; "Confirmed that mount is not communicating. Unsuccessfully attempted to reprogram the digital board, so replaced and programmed for mount, version P01-14 and Wi-Fi program. Disassembled damaged RA worm and worm wheel and removed grease; removed burrs which were breaking off the worm wheel resulting in slivers."

Looking forward to get the mount back and start the imaging again.


- Mikko


Re: Pier flip before meridian crossing is not possible with SGP and Mach1

Leo Shatz
 

Hi Luca,

Thank you for suggestion. I've arrived to the same conclusion, that meridian flip should be delayed by few minutes to avoid situation where small time difference that can prevent SGP from performing flip at all. I'll setup the flip offset and select parking in APCC as action on reaching meridian limits, so that there will be enough time for SGP to perform the flip and still leave some margin before reaching the limit.

I would appreciate any help, however, regarding testing the issue of early flip with SGP, as I think that current SGP implementation doesn't support it.

With regards,

Leo


Re: #Mach2GTO Portability #Mach2GTO

Bill Long
 


1100 breaks in parts for super easy portability. Another good option!


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Seb@stro <sebastiendore1@...>
Sent: Tuesday, August 11, 2020 9:10 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] #Mach2GTO Portability
 
Rick, 

On the heavy side then... That’s what I was afraid of. 

For my setup, that would mean 62lbs (42+10+10) of metal, let alone the scope and other A-P gear. Hum... I guess I’ll have to workout harder... ;)

Thanks for sharing your experience. 

Sébastien 

Le 11 août 2020 à 23:14, Rick Socarras <tgrick@...> a écrit :

Sebastien,

I've had the Mach 2 now for a several months and I too was very worried about portability.   My old mount was a Losmandy G11 that would split into two sections and that made the mount very light and manageable.  I live in a big city and I do not have the option of a permanent mount.  I'm very happy with the portability of the Mach 2.   I find it very comfortable.   I cradle the mount like a baby with both arms close to my chest and then set it on the tripod.   The weight of the mount on my digital scale is 44 lbs 5 oz.  That's with the polemaster camera attached and a DOVEDV10 saddle plate.  That's it.  No counterweight bar or weights attached.

Would I buy again?  Yes.  Absolutely and without hesitation.  The mount becomes invisible.  

6061 - 6080 of 78432