Date   

Re: Notes on tuning the EXOS-2/PMC8 mount hardware V2 #EXOS2

 
Edited

Tim,
 
Hope you find it useful!  :-)
Did you subscribe to the Mounts forum?   Add that and it should work.
Look at Main / subgroups menu on the left of your browser.
 
- Bob
 

On Mon, Aug 24, 2020, at 12:42, Tim Huseby wrote:
Robert,
 
     I keep getting bounced back to the main front page when clicking the link for your tuning note. I would love to read this and see what I can do with my exos2.
 
Tim
--
Tim
Las Vegas
Just starting in this Hobby, I have been doing wildlife and landscape photography. 
Mounts
Exos2-gt  PMC-8, Celestron Alt/Azimuth 
 
Scopes/Lenses:
Celestron SLT 130, Olympus 7-14,12-40,40-150 Pro and a Canon FD 500L
 
Cameras: 
Olymous om-d E-M1 Mkii,
 

--
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: Notes on tuning the EXOS-2/PMC8 mount hardware V2 #EXOS2

Tim Huseby
 

Robert,

     I keep getting bounced back to the main front page when clicking the link for your tuning note. I would love to read this and see what I can do with my exos2.

Tim
--
Tim
Las Vegas
Just starting in this Hobby, I have been doing wildlife and landscape photography. 
Mounts
Exos2-gt  PMC-8, Celestron Alt/Azimuth 

Scopes/Lenses:
Celestron SLT 130, Olympus 7-14,12-40,40-150 Pro and a Canon FD 500L

Cameras: 
Olymous om-d E-M1 Mkii,


Re: Using 1.2 V NiMH batteries #iEXOS-100

Shailendra Sharma <sshailendrasharma@...>
 

This exactly what I wanted. But difficult to get in the uk. So settled for the skywatcher 17ah tank.


From: MAIN@ESPMC-Eight.groups.io <MAIN@ESPMC-Eight.groups.io> on behalf of Harry via groups.io <flykai1@...>
Sent: Monday, August 24, 2020 4:08:48 PM
To: MAIN@ESPMC-Eight.groups.io <MAIN@ESPMC-Eight.groups.io>
Subject: Re: [ESPMC-Eight] Using 1.2 V NiMH batteries #iEXOS-100
 
Hi Mehdi, I also have the iExos100. I now use the Explore Scientific USB Power Bank. Its small, light weight, and fits perfectly in the iExos stock plastic battery pack holder. I power the mount, and a couple of dew heaters, and it will last at least several hours. I have been outside for 2-3 hours, and it is still around 75-80 capacity (estimated). It also has a red light that I use to illuminate the area under the mount.
--
Harry
Vero Beach, FL

Mounts: ES iExos 100-PMC Eight, ExploreStars iPad, Fire HD8
Scopes: ES  ED80CF, ES AR102,  Meade ETX 90 EC (Deforked)
Software: 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: Using 1.2 V NiMH batteries #iEXOS-100

Harry
 

Hi Mehdi, I also have the iExos100. I now use the Explore Scientific USB Power Bank. Its small, light weight, and fits perfectly in the iExos stock plastic battery pack holder. I power the mount, and a couple of dew heaters, and it will last at least several hours. I have been outside for 2-3 hours, and it is still around 75-80 capacity (estimated). It also has a red light that I use to illuminate the area under the mount.
--
Harry
Vero Beach, FL

Mounts: ES iExos 100-PMC Eight, ExploreStars iPad, Fire HD8
Scopes: ES  ED80CF, ES AR102,  Meade ETX 90 EC (Deforked)
Software: 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: Using 1.2 V NiMH batteries #iEXOS-100

Jerry Hubbell - Explore Scientific VP Engineering
 

On Mon, Aug 24, 2020 at 09:01 AM, <mehdi.tlili@...> wrote:
Would that affect the tracking performance or damage the motors? Or is there a voltage regulator built in?
Hi Mehdi,  thanks for you questions.
The PMC-Eight requires a nominal 12 VDC power supply. The internal voltage regulators for driving the motors are 10 VDC. The minimum voltage for the system where anything less than that is about 10.6 VDC. Any voltage below this will cause the motors to not provide enough torque and the system would fail. This doesn't impact the controller, or WiFi communications, only the motors. So the 9.6 VDC would definitely not work. If you want to use the rechargeable NiMH batteries, you would need to have at least 10 of them in series, and I would suggest 11 for more margin. The PMC-Eight will work fine with input voltages from 12 - 16 VDC. If you decide to build your own battery pack pay close attention to the connector polarity. The center pin is positive with the outside barrel negative. There is reverse polarity protection on the system, but it is best not to challenge it.
 
--
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: IEXOS 100 dovetail and DSLR #iEXOS-100 #alignment

Wes Mcdonald
 

Meghan

As bob stated sharp cap computes the center of rotation even when there is cone angle between the finder and the polar axis.  This is one of the advantages of it.  Makes PA of the iexos a piece of cake, if you have northern sky views.

I would suggest you get a longer focal length guide scope.  This will decrease your pixel scale for guiding which will lead to better guide performance.  Something like 240mm is good, probably means a 60mm guide scope.  

After adding guiding and sharp cap for PA the next thing that will change your life is plate solving integrated In NINA.  How does no muss no fuss centering of every target in you camera field of view sound to you?  Good, right?

One more thing to make your life a utopian dream is an auto focus capability.  Once you y get the focuser hardware NINA takes it from there.

NINA will also, through its total imaging automation chain, make it possible for you to start an imaging session and go away until it finished....including meridian flip.  

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: Using 1.2 V NiMH batteries #iEXOS-100

Mehdi Tlili
 

Thanks for the feedback. Any idea on how much current it pulls while star tracking and while moving to a given position?


Re: IEXOS 100 dovetail and DSLR #iEXOS-100 #alignment

Stade
 

Chris, thank you for the article it's a great reference that I already have printed in my arsenal.  I'm looking forward to the help a guide cam will give me in polar alignment and future guiding.  Thank everyone for their help!


Re: "Please Wait" #windows10 #app #pmc-eight

Wes Mcdonald
 

Dallan 

Can’t say what’s up but try this.  Make sure all the WiFi networks are not set to connect automatically in windows.  Perhaps the pmc8 is dropped and your home WiFi got connected by windows.

Also you have to probably make sure your firewall is allowing the connection.  Try just turning it off and see if that gets things going.

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: Using 1.2 V NiMH batteries #iEXOS-100

Chris Tardif
 

The mount will chew through rechargeable batteries.   If you're taking it to the field then get one of those larger powerbank / powertanks.  If its in the back yard, get a 12v power supply and an extension cord.  I bought a 12v PS off amazon 18 months ago and haven't looked back.
--
Mounts: Explore Scientific IEXOS-100 w Celestron CG5 tripod, iOptron CEM 40
Scopes: Explore Scientific FCD-100 ED-102CF, Various Canon lenses, ZWO mini-guidescope, StarField 60mm guide-scope.
CameraASI120MM Mini (mono), Altair GPCAM 130
Control PC: Intel NUC
Loc: 44 -79


Using 1.2 V NiMH batteries #iEXOS-100

Mehdi Tlili
 

I would prefer using rechargeable batteries in my IEXOS but the problem is that the NiMH batteries have only 1.2V, resulting in a total voltage of 9.6V when put in series compared to 12V when using classical alkaline batteries.
Would that affect the tracking performance or damage the motors? Or is there a voltage regulator built in?


Re: IEXOS 100 dovetail and DSLR #iEXOS-100 #alignment

Chris Tardif
 

Hi...

I wrote a walk through for the IEXOS-100 which you can find in the files section to the left in the user contribution section.  It has pictures and descriptions.  I tried side by side and found it a little heavy and hard to balance.  Others have made this work.  I used a long dove tail bar and mounted the ZWO camera and ZWO mini guide scope underneath.  Polar align using software like ShareCap and platesolve using software as well.  Life will be good. 

--
Mounts: Explore Scientific IEXOS-100 w Celestron CG5 tripod, iOptron CEM 40
Scopes: Explore Scientific FCD-100 ED-102CF, Various Canon lenses, ZWO mini-guidescope, StarField 60mm guide-scope.
CameraASI120MM Mini (mono), Altair GPCAM 130
Control PC: Intel NUC
Loc: 44 -79


Re: "Please Wait" #windows10 #app #pmc-eight

Jerry Hubbell - Explore Scientific VP Engineering
 

On Mon, Aug 24, 2020 at 01:53 AM, Ed wrote:
The please wait is telling you that your computer is loading the data from the DB file,
Hi Ed,

No, this is not correct. The Please Wait message on the Windows ExploreStars means that the tablet does not have a communications connection with the PMC-Eight controller. To verify the database on the Windows host is there, you just select an object from the database and see that it has the graphic and the description for that object.
 
--
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!


locked M27 Editing #Off-Topic

Shailendra Sharma <sshailendrasharma@...>
 

Hi Guys,

Which one do you guys think looks better?
All just the stacked image, with a  few minor adjustments in GIMP. The blue one has a star mask.

Thanks
Chox

Equipment;
EXOS2 GT PMC8
Skywatcher 102t
SVBONY 50mm
Canon 600d (unmodified)
ZWO ASI120 MC-S

Stacked in Sequator processing in GIMP


Re: #iEXOS-100 What do I need to mount a DSLR directly to the iexos #iEXOS-100

David
 

You need a dovetail. I used the one mentioned by Stade (I believe is the same one that came bundled with my iexos 100 HD). Just be aware that if you use a longer, heavier lens it’s going to be hard or impossible to balance, so you might need a longer dovetail. 


Re: #iEXOS-100 What do I need to mount a DSLR directly to the iexos #iEXOS-100

Stade
 

This is the one I got, from Explore Scientific and it works great.  I had problems with my dslr not securing tight enough and eventually realized it also has a spring loaded dowel you can move to sit underneath the dslr to help tighten/secure it to the dovetail

 https://explorescientificusa.com/products/camera-dovetail-plate 


Re: #iEXOS-100 What do I need to mount a DSLR directly to the iexos #iEXOS-100

David
 

Just ordered this for my Sony a7iii from telescope house in UK. Should be here this week. It’s an ES product so will hopefully be a good fit. There are other cheaper options but I’d rather be safe than waste money on something that isn’t going to be a good and useful tool.
https://www.telescopehouse.com/explore-scientific-camera-dovetail-kit-for-iexos-100-mount.html


Re: "Please Wait" #windows10 #app #pmc-eight

Eduardo Simone
 

Dallin,

The please wait is telling you that your computer is loading the data from the DB file, just let it sit there in that state for around 5 mins, maybe a little longer, if it doesn’t work, try installing the explore stars app through the pmc-8 configuration manager, it’ll put the database in the correct location, I ran into the same problem, I actually walked away from my laptop and came back to it 15-20 mins later and the “Please Wait” was gone and works great. Give it a shot and walk away from it during the “Please Wait”   If no go try reinstall through the config manager. Hope it helps. 


Ed
--
Meade LX 80 6" SCT and Meade DS 114mm Newtonian
Meade 2nd Digital Series Goto mount with 497 bandbox
ExploreScientific Exos II with PMC-8


Lunar Tracking Rate on EXOS2 and iPad - #iPadOS #EXOS2

ACorkill
 

Hi Jerry, Scott and Team,

I'm using an EXOS2-GT with PMC-Eight and an ES152ED. I'm doing sketching of the moon and need to know if there is an easy way to switch to Lunar Tracking on the Explore Stars app on iPad? I've checked settings, but no luck. 

Thanks,
Andrew
--
Telescope: Explore Scientific ED152 Air-Spaced Triplet APO Refractor in Carbon Fiber with 3" HEX Focuser 
Mount: Explore Scientific EXOS2-GT Equatorial with PMC-Eight
Other Scopes: Meade 8"LX90 SCT, William Optics 66mm APO Refractor
Binoculars: Oberwerk 20x80, Alpen 8x56


Re: UPDATED FIRMWARE NOW AVAILABLE #ExploreScientific #FIRMWARE

Jerry Hubbell - Explore Scientific VP Engineering
 

On Sun, Aug 23, 2020 at 05:02 PM, Robert Hoskin wrote:
Out of curiosity, though... did the amperage range I found look reasonable to you, considering the power consumption of the PMC8 itself, PLUS the steppers?
Hi Bob,

Actually the amperage should be around the 600 to 800 mA range when tracking I believe. Nowhere near 1000 mA for sure.
 
--
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!