Date   

Re: Upgrade Scope Suggestions for Imaging

Bill Long
 

The AG Optical has the TCF-3Si as an option these days, not as standard equipment.   


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bruce Donzanti <donza2735@...>
Sent: Monday, December 7, 2020 9:23 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Upgrade Scope Suggestions for Imaging
 
Thanks for the info, Bryan.  This is very helpful.


On Mon, Dec 7, 2020 at 10:11 AM Worsel via groups.io <bryancashion=yahoo.com@groups.io> wrote:
Bruce

All PW Corrected Dall-Kirkhams come with a manual Hedrick focuser, but PC control of the focuser, including temperature compensation is about an added $1000US.  You can add that at a later date.

AG Optical DKs come with an Optec TCF-3Si.  I have a 14.5" AGOS.

Because of the fixed primary and spherical secondary, Corrected Dall-Kirkhams are relatively easy to collimate and hold collimation well.

The following is only pertinent if you have similar situation at your location.

I have a friend with a PW 12.5, which is a closed tube OTA. He gets great images from it.  However, he lives below a mesa top in western Colorado.  He gets katabatic winds (drainage flow from the cold mesa top downslope) that significantly impacts his seeing much of the time.  Also some vibration impacts unless the OTA happens to be pointed directly into or directly away from the wind.  The bigger PW OTAs are all open truss as are the AG Optical Dall-Kirkhams and many RCs.

Bryan


Re: Upgrade Scope Suggestions for Imaging

Bruce Donzanti
 

Thanks for the info, Bryan.  This is very helpful.


On Mon, Dec 7, 2020 at 10:11 AM Worsel via groups.io <bryancashion=yahoo.com@groups.io> wrote:
Bruce

All PW Corrected Dall-Kirkhams come with a manual Hedrick focuser, but PC control of the focuser, including temperature compensation is about an added $1000US.  You can add that at a later date.

AG Optical DKs come with an Optec TCF-3Si.  I have a 14.5" AGOS.

Because of the fixed primary and spherical secondary, Corrected Dall-Kirkhams are relatively easy to collimate and hold collimation well.

The following is only pertinent if you have similar situation at your location.

I have a friend with a PW 12.5, which is a closed tube OTA. He gets great images from it.  However, he lives below a mesa top in western Colorado.  He gets katabatic winds (drainage flow from the cold mesa top downslope) that significantly impacts his seeing much of the time.  Also some vibration impacts unless the OTA happens to be pointed directly into or directly away from the wind.  The bigger PW OTAs are all open truss as are the AG Optical Dall-Kirkhams and many RCs.

Bryan


Re: Another clear night for testing

Roland Christen
 

The dewshield on my 160 refractor is the stock aluminum one we supplied with all the production scopes.

Rolando



-----Original Message-----
From: Sabahattin Bilsel via groups.io <sabbilsel@...>
To: main@ap-gto.groups.io
Sent: Mon, Dec 7, 2020 7:45 am
Subject: Re: [ap-gto] Another clear night for testing

Hello Roland,
 
This is a custom made dewshield I think. Made of Polyoxymethylene (POM) Delrin, Kocetal, Celcon etc...
I would like to make my own. We don't have frost here but lot of humidity, f.e. last night 98%.
 
Greetings from Bodrum, Turkey
Sab.

--
Roland Christen
Astro-Physics


3D View error #APCC

davidcfinch9
 

Everything is working very well with my new Mach2GTO and APCC Pro except for the 3D View feature.
When I click on the 3D View button I get a pop-up that states, "Load Library failed with error 1114. A dynamic link library (DLL) initiation routine failed." When I click the OK box, APCC shuts down.
How can I fix this?
Regards,
David


Re: New Solvers for APPM?

W Hilmo
 

With the current discussion of ASTAP, I wanted to circle back on a problem that I described a couple of months ago, but had not yet investigated.  I’ve had some time to troubleshoot and I understand what’s going on now.

 

The issue that I had was that, when using ASTAP as the solver through SGP, APPM would occasionally get into state where a single solve failure would cause all subsequent solves to fail.  It turns out that what was happening is that SGP was instantiating ASTAP with PlateSolve2 compatibility and a search area of “Max Regions”.  What happened then was that a solve failure would essentially try to do an all-sky solve, with a search radius of 90 degrees.  The subsequent APPM solve failures were occurring because APPM had timed out the original solve and was submitting new solve requests while the first one was still searching with that large search radius.

 

The solution to the problem was to reduce the number of search regions in SGP.  In my case, I was able to change from “Max Regions” in SGP to 2500, which is the highest number below “max”.  I have a fairly small field of view at 23’ x 17’.  Using a search area 2500x my field resulted in a search radius of between 7 and 8 degrees.  A failed solve with this search radius fails in a few seconds.  With ASTAP failing before the APPM timeout, all is well.  Sure, it doesn’t address that initial failure (which in my case looked to be happening because of a really poor star field), but APPM now recovers properly and I can get a good model.

 

I’m hoping that Ray’s implementation uses the ASTAP native command line, instead of PlateSolve2 compatibility.  If that is the case, then it will be possible to specify a search radius directly and this won’t be a problem with sane parameters.  It would be even cooler if we could configure ASTAP for both normal and blind solves.  A “normal” search could have a small search radius, say under 10 degrees.  A “blind” solve could have a search radius of 90 or 180 degrees (with an appropriate timeout).

 

Thanks,

-Wade

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of George LaBelle
Sent: Monday, December 7, 2020 5:42 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] New Solvers for APPM?

 

Excellent. ASTAP has become much more popular because of its speed and reliability.
--
George
Prineville, Oregon


Re: Capacity check on AP 1100

Bill Long
 

Or a few Focuses. 😉 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Astrobob <imager1940@...>
Sent: Sunday, December 6, 2020 6:06 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Capacity check on AP 1100
 

You’d need another Ford F150 for a counterweight…..

 

Sent from Mail for Windows 10

 


Re: Upgrade Scope Suggestions for Imaging

Bill Long
 

Planewave is leagues better than that scope. No offense. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Gary Steffens via groups.io <gwsteffens@...>
Sent: Sunday, December 6, 2020 7:47 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Upgrade Scope Suggestions for Imaging
 
Bruce, another suggestion would be the Astro-Tech/TPO/GSO 14" RC OTA. I have the 16" version. It has excellent optics and the truss design is very stable and strong. The focuser that comes with it is only good for visual use so you would need to get a better one for imaging. I have the Feather Touch focuser which works great.
Yes, it isn't a Planewave and I can't speak to its advantages, but I'm very happy with my setup and I get great images. 
Cheers,
Gary


Re: Upgrade Scope Suggestions for Imaging

Worsel
 

Bruce

All PW Corrected Dall-Kirkhams come with a manual Hedrick focuser, but PC control of the focuser, including temperature compensation is about an added $1000US.  You can add that at a later date.

AG Optical DKs come with an Optec TCF-3Si.  I have a 14.5" AGOS.

Because of the fixed primary and spherical secondary, Corrected Dall-Kirkhams are relatively easy to collimate and hold collimation well.

The following is only pertinent if you have similar situation at your location.

I have a friend with a PW 12.5, which is a closed tube OTA. He gets great images from it.  However, he lives below a mesa top in western Colorado.  He gets katabatic winds (drainage flow from the cold mesa top downslope) that significantly impacts his seeing much of the time.  Also some vibration impacts unless the OTA happens to be pointed directly into or directly away from the wind.  The bigger PW OTAs are all open truss as are the AG Optical Dall-Kirkhams and many RCs.

Bryan


Re: Upgrade Scope Suggestions for Imaging

Bruce Donzanti
 

I am considering all options like these, including the Optec secondary fastFocus system.

Thanks

On Mon, Dec 7, 2020 at 8:43 AM George LaBelle <george.labelle@...> wrote:
Why not lock the mirror and add an Optec or Starlight Instruments focuser on the back?
--
George
Prineville, Oregon


Re: Another clear night for testing

Sabahattin Bilsel
 

Hello Roland,
 
This is a custom made dewshield I think. Made of Polyoxymethylene (POM) Delrin, Kocetal, Celcon etc...
I would like to make my own. We don't have frost here but lot of humidity, f.e. last night 98%.
 
Greetings from Bodrum, Turkey
Sab.


Re: Upgrade Scope Suggestions for Imaging

George LaBelle
 

Why not lock the mirror and add an Optec or Starlight Instruments focuser on the back?
--
George
Prineville, Oregon


Re: New Solvers for APPM?

George LaBelle
 

Excellent. ASTAP has become much more popular because of its speed and reliability.
--
George
Prineville, Oregon


Re: Upgrade Scope Suggestions for Imaging

Bruce Donzanti
 

Thanks for your input, Gary.....appreciate the suggestion.  I will check it out.

Bruce

On Sun, Dec 6, 2020 at 10:47 PM Gary Steffens via groups.io <gwsteffens=yahoo.com@groups.io> wrote:
Bruce, another suggestion would be the Astro-Tech/TPO/GSO 14" RC OTA. I have the 16" version. It has excellent optics and the truss design is very stable and strong. The focuser that comes with it is only good for visual use so you would need to get a better one for imaging. I have the Feather Touch focuser which works great.
Yes, it isn't a Planewave and I can't speak to its advantages, but I'm very happy with my setup and I get great images. 
Cheers,
Gary


Re: Upgrade Scope Suggestions for Imaging

Gary Steffens
 

Bruce, another suggestion would be the Astro-Tech/TPO/GSO 14" RC OTA. I have the 16" version. It has excellent optics and the truss design is very stable and strong. The focuser that comes with it is only good for visual use so you would need to get a better one for imaging. I have the Feather Touch focuser which works great.
Yes, it isn't a Planewave and I can't speak to its advantages, but I'm very happy with my setup and I get great images. 
Cheers,
Gary


Re: Capacity check on AP 1100

Astrobob
 

You’d need another Ford F150 for a counterweight…..

 

Sent from Mail for Windows 10

 


Re: Change Mount COM Port

Mike Dodd
 

On 12/6/2020 4:16 PM, dang.astro wrote:
Heya Mike,

Finally got a chance to try this. The first time I connected the solar
guider it wouldn't show up as any port and was throwing an error.
Unplugged and replugged back in and it came up as its own separate COM
port from the CP4. Not sure what was going on but it seems to be working
now.

Greatly appreciate your time and help!
Glad to hear it's working. Windows is picky about USB drivers. The fundamental rule of thumb is, install the driver software BEFORE plugging in the equipment. Maybe if finally figured out what driver to us for your solar guider.

--- Mike
http;//astronomy.mdodd.com


Re: Change Mount COM Port

dang.astro
 

Heya Mike,

Finally got a chance to try this. The first time I connected the solar guider it wouldn't show up as any port and was throwing an error. Unplugged and replugged back in and it came up as its own separate COM port from the CP4. Not sure what was going on but it seems to be working now. 

Greatly appreciate your time and help!
Dan


Mach2 Wifi problems #Mach2GTO #WiFi

ernie.mastroianni@...
 

Hello all,
I recently did some more extensive tests to isolate the Mach2 WiFi issues I've had and got some interesting results.

First, my field setup:
A PC with APCC Pro runs the mount.
My MacBook Pro runs my ZWO guide camera and my QHY imaging camera.
My iPhone SE connects to the mount after APCC Pro initializes it. The phone, using SkySafariPlus, operates and direct the mount. This was my standard field setup, backyard or dark sky site.

My problem:
The WiFi phone connection with the mount would repeatedly drop (due to auto-lock, I found out later). Reconnecting failed unless I'd power the mount off and on. I could not figure out why a power recycle was necessary.

The test in my basement home office and workshop (See the attached photo):
I set up the Mach2 powered by AC.
The PC, connected via ethernet to the CP5, was running APCC Pro. The WiFi was disabled.
My Macbook was running SkySafari Pro, with the WiFi also disabled.
My iPhone SE, also running Sky Safari, connected cleanly to the mount AFTER it was initialized by APCC Pro. The phone was set to NEVER auto-lock.
In this setup, I was able to control the mount with no dropouts at all. I ran the mount from 2 feet away. I went upstairs to a different room and the phone still ran the mount. I went out to my back yard, the mount still in the basement, the WiFi ran the mount perfectly. No dropouts.

Adding the laptops:
I connected my Macbook Pro to the mount via WiFi, and watched it track via SkySafari as I moved the mount with the phone. No problems, near or far. The phone maintained its connection to the mount, even with the Macbook connected. I could also see the mount's movement displayed in real time on the APCC program too. So three connections to the mount, no dropouts from WiFi, and clean data moving to all three in real time. 

Adding two cameras via cheap USB cords (see attached photo)
To see if USB data somehow affects the WiFi signal, I connected a ZWO ASI290 planetary camera and a QHY l68c large sensor camera to the laptop, and started both camera programs running image data to the laptop in steady, repeating loops. The iPhone remained connected to the Wifi, no matter where I went with in the house or outside. I could control the mount regardless of my proximity, even two floors up or 50 feet away outside. the WiFi ran the mount perfectly. No dropouts.

The problem returns:
I then disconnected my phone from the mount and the CP5 WiFi. When I tried to reconnect, SkySafari informed me that it could not make a wireless connection to the scope, even though the phone was once again linked to the CP5 WiFi.  See attached photo

Here was my field problem repeated. It seems that the CP5 WiFi can handle multiple connections, but the SkySafari program cannot reconnect when other traffic is present. Kind of like a no re-entry rule at a rock concert. After learning this, i tried another imaging session. Wifi on both laptops was disabled. The iPhone was the only device occupying the CP5 Wifi. I had no dropouts. I was also able to disconnect and reconnect at will. 

With the recent arrival of the keypad/hand controller, I can eliminate the PC laptop. During a backyard test a couple nights ago, the iPhone SkySafari worked seamlessly with the keypad.

Conclusion: My Mach2 Wifi issues seemed to be caused when multiple devices were sharing the Wifi, and when one exits, it somehow is prevented from reconnecting.  My initial perception of problem was not complete and I did not fully understand how the entire system was working and communicating. At this time, I don't see an inherent issue that I can definitively trace to the CP5 Wifi on my Mach2.

Ernie Mastroianni



Re: Possible to install the RAPAS + RAPM2 on the left side of the #Mach2GTO RA axis ? #Mach2GTO

KHursh
 

It looks like it would place the eyepiece upside down if you mounted on the left.


Possible to install the RAPAS + RAPM2 on the left side of the #Mach2GTO RA axis ? #Mach2GTO

Seb@stro
 

Hello everyone,

I was watching Tony's (aka Harley Davidson) latest and much useful videos about his new Mach2 (lucky guy, mine is scheduled for delivery in January) and one of them (ref. https://www.youtube.com/watch?v=d-Ltoqabn8k) made me wonder if it was possible to install the RAPAS+RAPM2 on the left side of the RA axis with the same adapter or say a left-sided version of the RAPM2.

I would find it more practical and comfortable to use my right eye when polar aligning (me being right-handed as well). I therfore wouldn't have to rotate the scope 90 degrees prior to PA, saving a few seconds / minutes more while I setup (I'm mobile most of the time).

Anyway, I think it would be a nice additional feature to be able to choose which side suits you best if it isn't already possible...

CS!
Sébastien

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