Date   

Re: iExos 100 disconecting from wifi #iEXOS-100

Luiz Sanches
 

The problem continues: connected via serial, I can have a entire night without any disconnection with the mount, or, in other night, lose the connection so many times that make impossible to use the mount.

Some news: run as administrator don't solve. 
Some times the mount is disconnected, but the green light is on. I can only click in the disconnect and connect again in the device hub. Most of the times I need to finish the device hub in task manager.
On nights that I am not photographing, I am only collimating the telescope and I am using only one application, like Apt, the mount never disconnects. Is the windows losing focus and disconnecting the mount drivers when I change one program to other? I use at same time Apt, phd2, stellarium and others plat solvers. 

I use always serial, to avoid wifi problems. I use any drivers from scientific explorer and the last firmware in the mount. I only use device hub, not POTH because when the mount disconnect, POTH sometimes can't be finished in the task manager.

Thank you.


Re: Advice on exos2 dec movement. #EXOS2

Walter Vinci
 

Hi Jerry,

Your point makes totally sense. Just as a reference point for a new Exos2 owner, what would you consider a good range for polar alignment offset? Anything as large as to avoid field rotation? Any insight from experienced users would be great. As you said, alignment tools like Sharpcap could also used very easily to achieve a desired offset in the alignment. 

Thanks,
Walter

On Feb 6, 2021, at 8:32 PM, Jerry Hubbell - Explore Scientific VP Engineering <jrh@...> wrote:

On Sat, Feb 6, 2021 at 11:32 AM, Robert Hoskin wrote:
Basically, less appears to be more where DEC guiding is concerned. 
Hi Bob,

I agree with you in terms of DEC guiding. In fact I go much further in my assessment. The following may go against the conventional wisdom a little bit and impacts the need for a precise polar alignment. You may already know where I am going with this.

I would say that for less expensive mounts where the quality of the gear train is not in the upper tier, obtaining a near perfect polar alignment with the great tools available including the QHY Polemaster, and others is not the optimum solution. This works great in higher end mounts where the quality is higher because the system can handle the switching from North to South direction of the control pulses to maintain tight control over the DEC position. To tell the truth, with higher end mounts with a near perfect polar alignment, I contend that you should not be guiding in DEC at all unless you are pointing lower on the horizon (< 30 degrees altitude) to correct for refractive tracking errors.

In the case of the lower end mounts, allowing PHD2 to correct excursions in DEC by switching between North and South pulses (which you will need to do with a near perfect polar alignment) in the presence of any amount of gear lash makes things worse. A much better solution is to leave a bit of polar alignment offset so that you can control and mitigate any switching of the pulse-guide direction. You also need to bias the equipment load to be "camera heavy" on the DEC axis so you can ensure a positive/constant worm/wheel contact which minimizes the effect of any gear lash in the system. This will generally result in much better performance for lower end mount systems such as the EXOS 2 and iEXOS 100 PMC-Eight systems. 

This has generally been my experience and also the experience of a lot of customers I have spoken to over the years. IMHO, the advent of these new polar alignment tools over the past few years has ironically made the problem worse for astrophotographer's using lower end equipment as I said above. 

I would love to hear everyone's thoughts on this

Thanks
 
--
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at explorescientific.com

www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home


Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
Mounts
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!


Re: Advice on exos2 dec movement. #EXOS2

Jerry Hubbell - Explore Scientific VP Engineering
 

On Sat, Feb 6, 2021 at 11:32 AM, Robert Hoskin wrote:
Basically, less appears to be more where DEC guiding is concerned. 
Hi Bob,

I agree with you in terms of DEC guiding. In fact I go much further in my assessment. The following may go against the conventional wisdom a little bit and impacts the need for a precise polar alignment. You may already know where I am going with this.

I would say that for less expensive mounts where the quality of the gear train is not in the upper tier, obtaining a near perfect polar alignment with the great tools available including the QHY Polemaster, and others is not the optimum solution. This works great in higher end mounts where the quality is higher because the system can handle the switching from North to South direction of the control pulses to maintain tight control over the DEC position. To tell the truth, with higher end mounts with a near perfect polar alignment, I contend that you should not be guiding in DEC at all unless you are pointing lower on the horizon (< 30 degrees altitude) to correct for refractive tracking errors.

In the case of the lower end mounts, allowing PHD2 to correct excursions in DEC by switching between North and South pulses (which you will need to do with a near perfect polar alignment) in the presence of any amount of gear lash makes things worse. A much better solution is to leave a bit of polar alignment offset so that you can control and mitigate any switching of the pulse-guide direction. You also need to bias the equipment load to be "camera heavy" on the DEC axis so you can ensure a positive/constant worm/wheel contact which minimizes the effect of any gear lash in the system. This will generally result in much better performance for lower end mount systems such as the EXOS 2 and iEXOS 100 PMC-Eight systems. 

This has generally been my experience and also the experience of a lot of customers I have spoken to over the years. IMHO, the advent of these new polar alignment tools over the past few years has ironically made the problem worse for astrophotographer's using lower end equipment as I said above. 

I would love to hear everyone's thoughts on this

Thanks
 
--
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at explorescientific.com

www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home


Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
Mounts
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!


N

charles mckowen
 


--
Chuck McKowen
Bortle 3 Mangham/Monroe, La

WO Z61, WO REDCAT 51, ES ED102 100, Orion 8 Rc
Skywatcher eq6 r pro/Exos2 pmc8/ Atlas Eq-g pro
Qhy163c/m
Qhy183c 
asi533mc pro
Canon Eos Ra 
EQMod/Poth - APT, Stellarium, Stellarium scope, and PHD2


 


Re: Advice on exos2 dec movement. #EXOS2

 

Charles,

This is re: DEC guiding?

I touch on this a bit in my tuning doc.  About the best you can do for DEC balance is a bit of camera-heavy bias with a refractor, but that DEC motor on the side will still skew things.  Just as with RA, a bit of DEC weight bias appears to do no harm, and perhaps some good - so no worries.

Basically, less appears to be more where DEC guiding is concerned.  Some folks don't guide DEC at all.  I'm not there, but I have cut my DEC sensitivity back a lot on PHD2.  There was a really interesting thread some time ago about mechanical movement from guide corrections in one axis triggering guide corrections in the other one.  The pattern shows up in a guide graph - one axis corrects and then the other gets busy as well.  They can go back and forth for quite a while.  I had seen that behavior on mine, and reducing DEC sensitivity helped that for me, without doing any measurable harm to my images.

FWIW...

- Bob



On Sat, Feb 6, 2021, at 10:56, charles mckowen wrote:
I was wondering if anyone knew how to improve movement in the dec. It doesn’t seem smooth and hard to balance. There’s also a slight Hang up when you rotate. Which I think is normal from the design. If anyone can help me out. I would really appreciate it. Thanks 
--
Chuck McKowen
Bortle 3 Mangham/Monroe, La

WO Z61, WO REDCAT 51, ES ED 102, AstroTech 6 Rc, Orion 8 Rc
Celestron onyx 80 edf
Skywatcher eq6 r pro/Exos2 pmc8/ Atlas Eq-g pro
Qhy163c/m
Canon Eos Ra 
EQMod/Poth - APT, Stellarium, Stellarium scope, and PHD2

 



--
Mounts: ES PMC-8 EXOS2
Scopes: SV 102EDT, ZWO 60/280 Guide
Cameras:  Nikon D5300, Altair GPCAM2 290M
Software: ASCOM, CdC, AstroTortilla, BYN Pro, Sharpcap, PHD2
Computer:  Thinkpad x230, Win7Pro/64


Advice on exos2 dec movement. #EXOS2

charles mckowen
 

I was wondering if anyone knew how to improve movement in the dec. It doesn’t seem smooth and hard to balance. There’s also a slight Hang up when you rotate. Which I think is normal from the design. If anyone can help me out. I would really appreciate it. Thanks 
--
Chuck McKowen
Bortle 3 Mangham/Monroe, La

WO Z61, WO REDCAT 51, ES ED 102, AstroTech 6 Rc, Orion 8 Rc
Celestron onyx 80 edf
Skywatcher eq6 r pro/Exos2 pmc8/ Atlas Eq-g pro
Qhy163c/m
Canon Eos Ra 
EQMod/Poth - APT, Stellarium, Stellarium scope, and PHD2


 


Re: Retro-fit kit?

Jerry Hubbell - Explore Scientific VP Engineering
 

On Sat, Jan 30, 2021 at 12:16 PM, <robert.ian.taylor@...> wrote:
Thanks for the reply. I am based in the UK and it would be prohibitively expensive to send it to the US. If you had a retro-fit kit that people could install themselves I’m sure you would sell a lot more units. Many G11 owners in Europe do their own servicing on their mounts (again because very few will send these back to Losmandy) and would potentially be capable of installing this upgrade.
Hi Robert,

I fully understand the need for a DIY upgrade kit but unfortunately we need to be able to guarantee that there isn't something that is hidden to the user that might cause the system to fail even with a proper installation This is why we have the need for our checkout process and installation at our site. We may be able to work with our sister company Bresser Germany to install the kit and verify proper operation for you, it would be much easier to ship your mount to Germany for a retrofit. Let me know if you are interested in that path.

Thanks
 
--
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at explorescientific.com

www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home


Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
Mounts
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!


Re: Retro-fit kit?

Ian Taylor
 

Thanks for the reply. I am based in the UK and it would be prohibitively expensive to send it to the US. If you had a retro-fit kit that people could install themselves I’m sure you would sell a lot more units. Many G11 owners in Europe do their own servicing on their mounts (again because very few will send these back to Losmandy) and would potentially be capable of installing this upgrade.


Re: Retro-fit kit?

Jerry Hubbell - Explore Scientific VP Engineering
 

On Sat, Jan 30, 2021 at 08:49 AM, <robert.ian.taylor@...> wrote:
Hello - is it possible to buy a retro-fit kit so I can install the PMC-Eight system myself on an existing Losmandy G11 mount that I own (it is a Digital Drive version). 
I have recently serviced the mount (regreased it, installed new worm block bearings, installing a new high precision worm and making sure everything is aligned) and now the periodic error is around +/-5", without PEC.

It is difficult to find a price for the kit only - or are they some mechanical changes made to the mount itself too (I imagine the motors would be different but they are easy to change). 

Thanks
Hi Robert, thanks for your interest in the PMC-Eight G11 upgrade. We offer an upgrade kit that not only installs the PMC-Eight motor drive system but also includes some upgrades to the G11; Also in order to be able to guarantee performance the price includes doing the upgrade at our location in Arkansas. We don't offer the upgrade as a DIY kit. Here is the link to the product on our website:

Explore Scientific / Losmandy G-11 UPGRADE with Explore Scientific PMC — Explore Scientific LLC (explorescientificusa.com)

Thanks again for your interest.
 
--
Jerry Hubbell
Vice President of Engineering

Explore Scientific, LLC.
jrh at explorescientific.com

www.explorescientificusa.com
1010 S. 48th Street
Springdale, AR 72762
1-866-252-3811

Author: Scientific Astrophotography: How Amateurs Can Generate and Use Professional Imaging Data
             Remote Observatories for Amateur Astronomers: Using High-Powered Telescopes From Home


Mark Slade Remote Observatory (MSRO) IAU MPC W54 Equipment
Wilderness, VA
Mounts
: ES PMC-Eight G11 + Telescope Drive Master (TDM)
Scopes: ES 165 FPL-53 ED APO CF, ES 102 FCD100 ED APO CF
Cameras:  QHY174M-GPS + FW, QHY163C
Misc: 3-inch 0.7x Focal Reducer Field Flattener, Filters: Luminance,
Red, V-band Photometric, Diffuser, 200 lpmm Spectral Grating

Software: MaxIm DL 6, Cartes du Ciel, Astrometrica, AstroImageJ, AutoStakkert!


Retro-fit kit?

Ian Taylor
 

Hello - is it possible to buy a retro-fit kit so I can install the PMC-Eight system myself on an existing Losmandy G11 mount that I own (it is a Digital Drive version). 
I have recently serviced the mount (regreased it, installed new worm block bearings, installing a new high precision worm and making sure everything is aligned) and now the periodic error is around +/-5", without PEC.

It is difficult to find a price for the kit only - or are they some mechanical changes made to the mount itself too (I imagine the motors would be different but they are easy to change). 

Thanks


Re: Explore Stars app #ExploreStars

Robert
 

You can remote desktop to explorestars on a PC with your phone. Microsoft has an iOS app for that in the app store (Remote Desktop Mobile). Setup with Win10 was easy.


Re: Exos II Mount cannot connect after running pmc8.exe #EXOS2

Wes Mcdonald
 

Dino

Also there are many who are using the asi air.  They post and reply on the applications subgroup.  So if you get stuck with the asi air post there.  Those guys know what to do.  The rest of us maybe not so much... and that is where posts for non pmc8 should go anyhow.

Of course you can post questions about the pmc8 on any of the other subgroups.  

Also if you want to load new firmware you don’t have to switch the pmc8 to serial.  But you do need the ftdi usb to serial and the driver.  Then you c an just use the CM directly to load firmware and go from there. 

Welcome to the forum!

Wes

--
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired


Re: Exos II Mount cannot connect after running pmc8.exe #EXOS2

Dino Monaco
 

Thanks for the attachment  Harry. Much appreciated 


On Jan 28, 2021, at 4:51 PM, Harry J Jr <hjpayne48@...> wrote:

Hi Dino, I used the Exos II on an IPad so my first version of Explore Stars was the IOS version; if using a PC then you can download the Windows version and the corresponding database. ExploreStars is only used with a WiFi connection to PMC8; but in my mind it was a good starting point to get to know the mount. The ASIAIR didn’t even exist when I got started. Of course to switch to serial mode you will need an FDTI usb/serial cable, and a windows PC to run the ES configuration manager (CM). CM is available at ES website. For the process to use the exos II with asiair there is a PDF guidance document in the files section at this web site (attached) however using that with the recommended software to switch to serial on the PMC8 caused me issues, so I used the CM instead, after installing the windows driver from parallax for the FDTI serial cable (following guidance from Wes). Then you will need another windows program to invert the FDTI serial cable RS232 signal, which is mentioned in the guidance document I previously referenced (attached). Also you may need to update pmc8 firmware, which is done through the CM. In any event I suggest using ExploreStars over the PMC8 wifi with your new mount initially for some visual observing just to get started. There is an asiair pro users group on Facebook that I suggest you join once you start using the asiair, which I soon hope to use on a regular basis! Good luck, just stick with it! Harry
<iExos-100 EXOS2 G11 PMC-Eight and AsiAir - Getting Started Guide - September 12, 2020.pdf>

--
Dino Monaco


Wifi with windows 10

Andrew Houseman
 

I've seen some posts about changing adapter settings, running scripts, etc.  However there is an easier way to connect without screwing up all your other wifi-connections.

before connecting to the mount
Right click on the wifi icon from the tray->open network & internet settings
select Wi-Fi then Manage Known Networks
select PMC8
under IP settings, click edit
change to Manual
IPv4 On
IP address 192.167.47.11
Subnet Prefex Length 24
Gateway 192.168.47.1
Preferred DNS 192.168.47.1
Alternate DNS 192.168.1.1
IPv7 Off
Save

Change back any settings changes made at the adapter level to their normal dynamic IP settings.

Now you can connect to the mount or your router at will without messing with settings each time.

--Andrew


Re: Exos II Mount cannot connect after running pmc8.exe #EXOS2

Harry J Jr
 

Hi Dino, I used the Exos II on an IPad so my first version of Explore Stars was the IOS version; if using a PC then you can download the Windows version and the corresponding database. ExploreStars is only used with a WiFi connection to PMC8; but in my mind it was a good starting point to get to know the mount. The ASIAIR didn’t even exist when I got started. Of course to switch to serial mode you will need an FDTI usb/serial cable, and a windows PC to run the ES configuration manager (CM). CM is available at ES website. For the process to use the exos II with asiair there is a PDF guidance document in the files section at this web site (attached) however using that with the recommended software to switch to serial on the PMC8 caused me issues, so I used the CM instead, after installing the windows driver from parallax for the FDTI serial cable (following guidance from Wes). Then you will need another windows program to invert the FDTI serial cable RS232 signal, which is mentioned in the guidance document I previously referenced (attached). Also you may need to update pmc8 firmware, which is done through the CM. In any event I suggest using ExploreStars over the PMC8 wifi with your new mount initially for some visual observing just to get started. There is an asiair pro users group on Facebook that I suggest you join once you start using the asiair, which I soon hope to use on a regular basis! Good luck, just stick with it! Harry


Re: Exos II Mount cannot connect after running pmc8.exe #EXOS2

Harry
 

👍👍
--
Harry
Vero Beach, FL

Mounts: ES iExos 100-PMC Eight
Scopes: ES  ED80CF, ES AR102,  Meade ETX 90 EC (Deforked)
Guide: ZWO 30mm Mini, ZWO ASI120MM-Mini
Software: ASIair Pro, iPad Pro, MacOS, Starry Sky Stacker, Affinity Photo, Lightroom,  SkySafari Plus
Cameras: Nikon D600, D5500
Misc: ES USB Power Bank, Rigel QuikFinder, 0.8x Focal Reducer
Filters:  Optolong L-Pro, L-eNhance






Re: Exos II Mount cannot connect after running pmc8.exe #EXOS2

Dino Monaco
 

Great job in getting the PMC8 to work w the ASIAR Pro. I’m waiting for my EXOS2 mount and plan to do the exact set up.
Hopefully I’ll be able to follow these instructions and make it easy peesy when it’s my turn.
Question: while I’m waiting for the mount to arrive, what are all the apps &/or softwares that I need to download in my laptop.

Regards, 

Dino


On Jan 28, 2021, at 11:16 AM, hjpayne48@... wrote:

Problem solved! After reviewing a similar issue on a previous post, I followed guidance from Wes, loaded ftdi driver on windows 10 PC, connected mount and pc, booted pmc8, connected pmc8 wifi, used CM to confirm connection to serial, updated pmc8 firmware, inverted FTDI chip (all on windows laptop), connected serial/usb cable to PMC8 and asiair pro, connected to ES exos2 mount in asiair app on iPad, synch to mount and confirmed that I could slew the mount from within asiair app; whew! Now maybe I’ll get this new system under some clear skies on the eastern shore of MD. 

--
Dino Monaco


Re: Exos II Mount cannot connect after running pmc8.exe #EXOS2

Harry J Jr
 

Problem solved! After reviewing a similar issue on a previous post, I followed guidance from Wes, loaded ftdi driver on windows 10 PC, connected mount and pc, booted pmc8, connected pmc8 wifi, used CM to confirm connection to serial, updated pmc8 firmware, inverted FTDI chip (all on windows laptop), connected serial/usb cable to PMC8 and asiair pro, connected to ES exos2 mount in asiair app on iPad, synch to mount and confirmed that I could slew the mount from within asiair app; whew! Now maybe I’ll get this new system under some clear skies on the eastern shore of MD. 


Re: Exos 2 vs eq6r-pro

Wes Mcdonald
 

Chuck

That’s interesting.  Assuming the same guide scope and camera I wouldn’t expect a difference for the exos2 at 102 scope vs the 61.  Maybe with a very heavy payload but at 15# not so much.  You might be the first person to report observations with this regard.  

I will point out that the exos 2 guiding works better at some Ra dec combinations than others.  For example when you are near the pole the ra error makes little error in the guide position.  So some of the perceived difference might be related to where the two instances were looking.  

Great guiding tho!

Wes



--
Wes, Southport NC
EXos2-GT PMC-8, iExos 100
ES ED 127, 10" LX200GPS+wedge, Astro-Tech 8" Newt, ETX-90, 60mm no-name guide scope ~ 260mm FL
Polemaster, Orion ST-80 and SAG, ZWO 290MM, D5300 astro modified
Nina, Bootcamped Mac Mini control computer, RDP to iMAC
110 amp hour lead acid deep discharge battery for field power
Electrical Engineer, Retired


Exos 2 vs eq6r-pro

charles mckowen
 

So it’s been awhile since I used my exos 2. I just wanted to say this mount is incredible. I only use the exos2 with smaller focal lengths. Compared to the king of mass produced mounts. The eq6 can’t beat exos2 at tracking with smaller focal lengths. Now the tracking is awesome at higher focal lengths with the eq6r. I get around 0.50 arc sec with my ed102 and rc8. Lower though, at least 360 and below. The eq6r pro can’t beat it. With my wo and redcat I’m averaging 0.70 arc with the exos2 and can run 10minute subs. 
Chuck McKowen
Bortle 3 Mangham/Monroe, La

WO Z61, WO REDCAT 51, ES ED 102, AstroTech 6 Rc, Orion 8 Rc
Celestron onyx 80 edf
Skywatcher eq6 r pro/Exos2 pmc8/ Atlas Eq-g pro
Qhy163c/m
Canon Eos Ra 
EQMod/Poth - APT, Stellarium, Stellarium scope, and PHD2


 

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