Date   

Re: Listen Live Today at 4 pm CDT, 5 pm EDT #OpenGOTOLive

Jerry Hubbell - Explore Scientific VP Engineering
 

OpenGOTO Community Live! Episode 8

Today I give a lengthy presentation about analyzing PHD2 Guide Logs.
Here is the recorded video on YouTube:

https://www.youtube.com/watch?v=AVj_bQjESL0

Here it is on Facebook

https://www.facebook.com/ExploreScientificUSA/videos/264662474853227/

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: EXOS2GT-PMC8 Dec issue #EXOS2

Kent Marts- Explore Scientific Customer Service
 

Each PMC-Eight unit, wither the EXOS2 or iEXOS-1000, are quality checked by the staff in the US and in Germany. Each one is unboxed, connected to the app, and operated to ensure it operates to standard.

Clearly something happened in shipping.

We have arranged to bring the mount back to the office for examination.
--
Kent Marts
Customer Service
Explore Scientific

Gear: Anything in the store!


Listen Live Today at 4 pm CDT, 5 pm EDT #OpenGOTOLive

Jerry Hubbell - Explore Scientific VP Engineering
 


Listen today at 5 pm EDT, 4 pm CDT, 2 pm PDT to Explore Scientific's OpenGOTO Community Live! program on the Explore Scientific USA Facebook Page. Listen to Scott, Kent, and Jerry discuss current topics from the forum and take questions live from the audience. We also have guests and provide quick 5 or 10 minute "How-To" video tutorials related to the PMC-Eight system.

https://www.facebook.com/ExploreScientificUSA/

--
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: EXOS2GT-PMC8 Dec issue #EXOS2

 

Chiku,

Ouch...  Don't quote me, but I think that set screw requires a 1.5mm drive.  If it really is stripped, then you might put the good setscrew over the shaft's flat, to remain operational for now, and then talk to Kent about a replacement pulley.  

Stepper motors make a racket when they stall, but no harm done.  Most likely cause of that would be gear binding providing more resistance than the motor can overcome - ie: too tight a mesh between the worm gear and the axis's ring gear.  The pulleys will just try to deliver power faithfully to those gears, but if those won't move, well....

The other thing is that your pulleys and belts should NOT be rubbing on the plastic posts, and if the are, they need to be adjusted back on the shafts, so that they are clear of obstructions and can move  without rubbing.  Doesn't have to be a lot of clearance, just enough to be clear of obstructions...

HTH...


On Sun, Jun 14, 2020, at 19:48, Chaitanya wrote:
Bob,

I read your guide before posting message. I tried to adjust stepper pulley. Out of two set screw on motor pulley one of the head is stripped, basically Allen key just moves freely without engaging set screw. I will try to adjust with different Allen key.

Regarding stepper binding is it due to wobbly or lose motor pulley?

Chiku
--

Mounts: ES PMC-8 EXOS2
Scopes: Celestron C8
Cameras:  Canon SL1, Meade LPI-GM
Software: ASCOM, CdC, Sharpcap, 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


Re: EXOS2GT-PMC8 Dec issue #EXOS2

Chaitanya
 

Bob,

I read your guide before posting message. I tried to adjust stepper pulley. Out of two set screw on motor pulley one of the head is stripped, basically Allen key just moves freely without engaging set screw. I will try to adjust with different Allen key.

Regarding stepper binding is it due to wobbly or lose motor pulley?

Chiku
--
Mounts: ES PMC-8 EXOS2
Scopes: Celestron C8
Cameras:  Canon SL1, Meade LPI-GM
Software: ASCOM, CdC, Sharpcap, PHD2


Re: EXOS2GT-PMC8 Dec issue #EXOS2

 

Chaitanya,

No worries!  Yes, in the first one, it sounds like the stepper is binding, so some adjustment is needed.  And if your pulley is wobbling, might mean a loose pulley setscrew.  Easy enough remedied.  

Try this:

https://espmc-eight.groups.io/g/MOUNTS/files/EXOS2PMC8_TuningNotes_v1.pdf

If you can't see it, join the Mounts subforum and that should fix file permissions.

Hope this helps...

- Bob

--
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


EXOS2GT-PMC8 Dec issue #EXOS2

Chaitanya
 
Edited

Hi,
 
My mount is having issues with Dec. While slewing or parking I hear grinding noise and movement just stalls.Please help me identify what causes grinding and stall. Check the attached video 1.
 
After opening Dec motor housing I verified I can rotate Dec axis with worm pulley without any play. The stepper motor pulley is really wobbly and the belt is scratching housing near the worm pulley. How much wobble is acceptable for stepper pulley?

I have adjusted Dec motor housing a bit which solved the stalling issue but still I hear clicking sound while slewing as shown in video 2.

Any ideas what to check through and adjust to rectify issue?


--
Mounts: ES PMC-8 EXOS2
Scopes: Celestron C8
Cameras:  Canon SL1, Meade LPI-GM
Software: ASCOM, CdC, Sharpcap, PHD2


Re: Exos2 with PMC-eight setup for southern hemisphere #alignment #EXOS2 #ExploreStars #polaralignment

Lucas Romero
 

Thank you for the answer! I will try to contact Rodrigo.


Thanks!
--
Lucas Romero - Buenos Aires, Argentina

Mount: Explore Scientific EXOS II GT WITH PMC-8
Telescope: Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor
Camera: Canon 6D
Steering Software: ExploreStars App


Re: Explore Stars Android App in mobiles phones: Samsung S10 #Android

Lucas Romero
 

Hi Jerry, thanks for you answer! I will try to buy a tablet then. Also, I will check the dev subgroup to see how the current app could be adapted in smaller screens in Android. 

Thanks!

--
Lucas Romero - Buenos Aires, Argentina

Mount: Explore Scientific EXOS II GT WITH PMC-8
Telescope: Explore Scientific ED80-FCD100 Series Air-Spaced Triplet Refractor
Camera: Canon 6D
Steering Software: ExploreStars App


Re: Exos2 with PMC-eight setup for southern hemisphere #alignment #EXOS2 #ExploreStars #polaralignment

Jerry Hubbell - Explore Scientific VP Engineering
 

On Sun, Jun 14, 2020 at 08:58 AM, <romero.lucas@...> wrote:
I am in the southern hemisphere, in Argentina so I would need to know the proper setup to be able to use the goto system in the exos2 with pmc-eight mount successfully. 
Hi Lucas,

Thank you for your question. Both the ExploreStars application and the PMC-Eight ASCOM driver support use in the southern hemisphere. There is no specific setup in the ASCOM driver for use in the southern hemisphere as it determines the correct motor directions based on the latitude location value entered into the driver setup configuration. If the latitude is negative (-) then it will assume that the user is in the southern hemisphere. The same should be the case with ExploreStars. If you contact user Rodrigo Zelada, the owner of North Optics in La Serena, Chile on the forum, he can provide more information about using ExploreStars in the southern hemisphere. Hopefully he will see this message soon and weigh in on this question.
 
--
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: Explore Stars Android App in mobiles phones: Samsung S10 #Android

Jerry Hubbell - Explore Scientific VP Engineering
 

On Sun, Jun 14, 2020 at 08:58 AM, <romero.lucas@...> wrote:
I read the app is designed for tablets but I was wondering if there is a way to make it scale properly in smaller screens. An screenshot is attached. 
Hi Lucas,

Thanks for your questions. There is currently no cellphone device version of ExploreStars. The minimum screen size for tablets is 7-inches. Through our OpenGOTO Community, we currently provide all the information needed to create custom applications on any platform including cellphones. Any new developments and releases related to ExploreStars will be announced here on the forum.
 
--
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!


Exos2 with PMC-eight setup for southern hemisphere #alignment #EXOS2 #ExploreStars #polaralignment

Lucas Romero
 

Hi!

I am in the southern hemisphere, in Argentina so I would need to know the proper setup to be able to use the goto system in the exos2 with pmc-eight mount successfully. 

Looking at the exos2 manual I would say that the only way to achieve a good polar alignment is by using a crosshair reticle eyepiece and doing the drift method, correct?


Also, I watched this video: https://youtu.be/2hPg4IZZlXY?t=350 and in the time 5:55 it is said the "Dec Direction" and "RA Direction" options should be enabled in the explore stars app for the southern hemisphere. Is this correct? why is that?


Did I miss anything else which is specific and required for the southern hemisphere? I am in the city so it is really difficult to see octans for polar alignment.


Any suggestion or advice you could give me will be greatly appreciated. 

Thank you!
Lucas

 


Explore Stars Android App in mobiles phones: Samsung S10 #Android

Lucas Romero
 

Hi!

I have installed the Explore Stars Android App in my mobile phone: Samsung Galaxy S10 and the app is not displayed in a proper scale. I read the app is designed for tablets but I was wondering if there is a way to make it scale properly in smaller screens. An screenshot is attached. 

What is the minimum screen size it supports? Or maybe is the issue related to this particular mobile phone screen?

Is the source code for this Android App also available to download? I just ask this to try to fix the scaling issue I have.

Thank you!!
Lucas





Re: One object tracking goes well, the other gives startrails #polaralignment #astrophotography #ExploreStars #iEXOS-100

Koen M.
 

Hi Wes,

They where taken with a 18-200 lens.

The one with the trails on 200mm the other one on 18mm.
However i dont think thats the problem, because i also took pictures on 200mm on the side where the tracking did work and those have no startrails.

As for the AZ and EL for the photo's i haven no idea where to find that information, and i did not write them down (is a good tip to starting to write those down tough)
I did however look them up in Stellarium (i went back to the future or something like that :p )
This is the data Stellarium gives me on the "succesfull one"


And this is the data it gives me on the one with trails


Re: UPDATED FIRMWARE NOW AVAILABLE #ExploreScientific #FIRMWARE

Wes Mcdonald
 

John

No.problem. Same procedure.

Wes

--
Wes, Southport NC
PMC-8, ES ED 127, 10" LX200GPS, Astro-Tech 8" Newt, ETX-90
Polemaster, Orion ST-80 and SAG
Electrical Engineer, Retired


Re: UPDATED FIRMWARE NOW AVAILABLE #ExploreScientific #FIRMWARE

John Pirrone
 

Hey Wes. I answered incorrectly. I do not have the G11 mount. I have the EXOS2-GT mount.  OOPS. 

John 

On Fri, Jun 12, 2020 at 10:11 AM brian skinner <brianjimskinner@...> wrote:
Great Wes, just what the doctor ordered, it was also very nice to put faces to the names.

Thankyou and kind regards, Brian


Re: UPDATED FIRMWARE NOW AVAILABLE #ExploreScientific #FIRMWARE

brian skinner
 

Great Wes, just what the doctor ordered, it was also very nice to put faces to the names.

Thankyou and kind regards, Brian


Re: Joy Stick

Wes Mcdonald
 

bill

Ascom can be used wirelessly.  But you can't use ascom and Explorestars at the same time.  
Wes

--
Wes, Southport NC
PMC-8, ES ED 127, 10" LX200GPS, Astro-Tech 8" Newt, ETX-90
Polemaster, Orion ST-80 and SAG
Electrical Engineer, Retired


Mac

Bill Hooker <wjhooker@...>
 

Another question I have is if there a way to run Explorer Stars on a MacBook.

Bill Hooker


Re: Joy Stick

Bill Hooker <wjhooker@...>
 

Thanks for the reply.

If you used ascom, does that not mean the computer to PMC 8 would have to be via serial cable, thus eliminating the ability to use Explorer Stars?
Or can ascom be used wirelessly?

Bill Hooker



On Jun 12, 2020, at 11:35 AM, Wes Mcdonald <wesmcd6@...> wrote:

Bill

Far as I know you cannot.  You can via ascom though.

Wes

On Fri, Jun 12, 2020 at 2:24 PM Bill Hooker <wjhooker@...> wrote:
I am new to this group so hope this post is OK. 

Could someone help me figure out how to make a “joystick” controller work to move the scope (PMC8) through Explore Stars?

Bill Hooker



--
Wes, Southport NC
PMC-8, ES ED 127, 10" LX200GPS, Astro-Tech 8" Newt, ETX-90
Polemaster, Orion ST-80 and SAG
Electrical Engineer, Retired

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