Date   

Sqlite failure message

brian skinner
 


---------- Forwarded message ---------
From: brian skinner <brianjimskinner@...>
Date: Tue, 23 Mar 2021, 08:45
Subject: Sqlite failure message
To: wes McDonald <wesmcd6@...>


Hi Wes, I have taken a photograph of the Sqlite file failure notice from my Android10 tablet which is showing the database as ver 1.0 (0). My older tablet lists the database as ver 2.3  (85643) which I guess is correct. Both tablets have the same updated app.
My older tablet app crashes if anything other than a solar object is selected, same as one of the other guys has reported.....
Thankyou, Brian

--
Brian Skinner
iEXOS100
Canon 1300d dslr
Various lenses
ES Polar scope
Sequator image stacker
PIXR image editor


Sqlite failure message

brian skinner
 


---------- Forwarded message ---------
From: brian skinner <brianjimskinner@...>
Date: Tue, 23 Mar 2021, 16:24
Subject: Re: Sqlite failure message
To: wes McDonald <wesmcd6@...>


Hi Wes, my main, and up to date Tab A is running Android 10. This is the one which is not seeing/opening the latest database and which generates the Sqlite failure message.
My older Tab4 and another Tablet I borrowed both open the database but crash The App when I select any object except the Solar ones. One of these tablets is running Android 5.1.1, the other is Android7.1.1.
One of the other 2 guys also reporting the problem experiences the same Solar opening and App crash as my two older Tablets. The other guy is reporting the same complete non opening problem as my latest tablet so I guess his tablet is running at least later than Android 7.1.1.
Thankyou, Brian


On Tue, 23 Mar 2021, 11:52 wes McDonald, <wesmcd6@...> wrote:
Send this report along to the group.

When I deliberately remove my database I get the same message.  When it is present all is well.   

What Android version are you using?

Wes


On Tue, Mar 23, 2021 at 4:46 AM brian skinner <brianjimskinner@...> wrote:
Hi Wes, I have taken a photograph of the Sqlite file failure notice from my Android10 tablet which is showing the database as ver 1.0 (0). My older tablet lists the database as ver 2.3  (85643) which I guess is correct. Both tablets have the same updated app.
My older tablet app crashes if anything other than a solar object is selected, same as one of the other guys has reported.....
Thankyou, Brian

--
Brian Skinner
iEXOS100
Canon 1300d dslr
Various lenses
ES Polar scope
Sequator image stacker
PIXR image editor


Re: #ExploreStars #Android #ExploreStars #Android

brian skinner
 

HI Pete, this is a real problem. My current android 10 tablet (running android 10) TabA, doesn't open the database at all. My 2 older Tablets, same as you in that both open the database but only the solar objects are operational...... The other objects, on selection, cause the app to crash.
All this started  like you probably when I updated the app and database. Up to then was having no problems at all.
Hopefully we'll get a resolution soon, 
Kind regards, Brian
--
Brian Skinner
iEXOS100
Canon 1300d dslr
Various lenses
ES Polar scope
Sequator image stacker
PIXR image editor


Re: DEC axis not moving in certain position. Belt slipping. #EXOS2

Peter Danek
 

Well, I hope that this fix is not my isolated case only. Someone should try it to confirm if it helps to get uniform mesh tightness 360 degrees around. My "shims" are just folded sticky note :D Different shim thickness will have different results.
--
Mounts: ES EXOS-2 PMC-Eight, SW AZ GOTO
Scopes: SW 200P, SW 130P
Cameras:  Canon T3i, Canon XS, SV305 Pro - IMX290


Re: DEC axis not moving in certain position. Belt slipping. #EXOS2

Wes Mcdonald
 

The deal is with this mount at this price point the mechanics are not perfect.  So you will find that the mesh tightness is not uniform around all 360 degrees.  This means that when u set the tension you need to rotate the thing manually all the way around.   

But great catch. I am sure this is something that needs adjustment (your new shims) or at least looked at for people who want to tune things up.

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: DEC axis not moving in certain position. Belt slipping. #EXOS2

Peter Danek
 

Wes,

thank you but am I understand it right? You are saying, that the issue I was describing and fixing is simply a feature of the DEC ring gear and a worm? That the mesh tightness is not even 360 degrees around the ring by default?

Because that was my problem, the misalignment of the worm to a ring gear. Pushing the worm box slightly lower causes better alignment of the worm. It is still, not 100% perfect and you can play with it more but I'm happy now as it is.
--
Mounts: ES EXOS-2 PMC-Eight, SW AZ GOTO
Scopes: SW 200P, SW 130P
Cameras:  Canon T3i, Canon XS, SV305 Pro - IMX290


Re: DEC axis not moving in certain position. Belt slipping. #EXOS2

Wes Mcdonald
 

Peter

If this proves to be universally true you just may be the next steely eyed rocket man. Really this problem has always been ascribed to eccentricity.  But if in fact it is addressed by better alignment of the worm and wheel center lines...this is huge.

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: DEC axis not moving in certain position. Belt slipping. #EXOS2

Peter Danek
 

Bob,

as I said, the ring gear moves after locking the axis for some reason. This causes the mesh between the worm and ring gear to be too tight on one side and too loose 180 degrees on the opposite side.

So I had to push the worm block slightly lower by the shims to get even mesh tightness around the ring. Strange, but it's working now as it should be.
--
Mounts: ES EXOS-2 PMC-Eight, SW AZ GOTO
Scopes: SW 200P, SW 130P
Cameras:  Canon T3i, Canon XS, SV305 Pro - IMX290


Re: DEC axis not moving in certain position. Belt slipping. #EXOS2

 

Peter,
 
That's a surprise!  Are you showing that the worm block was not sitting flush despite being fastened down, or something else?  Here's a candid shot of mine, from a bit different angle - no room for shims.
 
- Bob



--
Mounts: ES PMC-8 EXOS2, Serial
Scopes: SW 130P-DS, SV 102EDT, ZWO 60/280 Guide
Cameras:  Nikon D5300, Altair GPCAM2 290M
Software: ASCOM 6.3, CdC, AstroTortilla, BYN Pro, Sharpcap, PHD2
Computer:  Thinkpad x230, Win7Pro/64


BETA TEST INPUTS ARE NEEDED

Wes Mcdonald
 

Folks:

If you have subscribed to the beta test project for the new firmware and associated ASCOM driver update to the PMC8, please get your comments into the BetaTest subgroup as soon as possible.  The public beta period ends April 1, and we need your findings relative to software issues or documentation needs so that these may be addressed prior to general release.  So please help us out by entering those findings you may have.

Regards,
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: DEC axis not moving in certain position. Belt slipping. #EXOS2

Sebastian
 

Nice, I found out the factory used  inch and metric Allen screws for the dec motorbox 😕


Re: DEC axis not moving in certain position. Belt slipping. #EXOS2

Peter Danek
 

Thank you, guys. I understand what you are saying but there was no conventional way of adjusting and fixing my issue. After tinkering with it all day I finally found a fix and now it's working with no issues. 

--
Mounts: ES EXOS-2 PMC-Eight, SW AZ GOTO
Scopes: SW 200P, SW 130P
Cameras:  Canon T3i, Canon XS, SV305 Pro - IMX290


AmazonFire tablet #ExploreStars

Sebastian
 

I tried to download the App from Amazon. There seems to be a geoblock for Germany. I had installed the app one year ago and it worked. What has happened? 


Re: DEC axis not moving in certain position. Belt slipping. #EXOS2

Wes Mcdonald
 

Peter:

When the motor stalls, the belt does not slip as Bob mentioned.  Instead the motor simply does not move but it makes a huge racket, like a coffee grinder.  I haven't seen the movie.  How does it sound?  

If you are binding, then you just have to loosen the mesh.  And live with the consequences.  Use Bob's paper to set it up as well as it can be.  Dec backlash is just a fact of life with these mounts.
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: Exos2 GT not responding via serial #ConfigManager #EXOS2 #pmc-eight

Michael
 

Hi Gents,

thanks for the quick responses.
first things first, it works again. I dont know why, but at least the connection is on again and i can control my mount again.

to your questions: Yes I reprogrammed the FTDI cable and it was working until 2 daYs ago. I did that several times today again, also with different cabels without any changes. Out of any reason at some point the error messages were gone and the mount slewed like ever before 🤷🏻😀.
i am using Ascom 6.5 SP1

thanks for your replys and i hope i get more active here in the future.

best regards
Michael


Re: Exos2 GT not responding via serial #ConfigManager #EXOS2 #pmc-eight

m4ttnova .
 

A couple of questions did you reprogramme your ftdi cable. Another thing you could try is resetting the pmc8 unit. I too use stellarmate and I spent about 2 hours the other night to get it working again


On Sat, 20 Mar 2021, 17:34 Sebastian, <jakob.sebastian@...> wrote:

Which Ascom driver do you use (6.5 SP1)?
Did you check the com port in the Win device manager ? 
there’s is also an issue with some Win updates/builds. check this info at the top of the Page 

https://explorescientificusa.com/pages/software-and-downloads-for-pmc-eight-system


Re: Exos2 GT not responding via serial #ConfigManager #EXOS2 #pmc-eight

Sebastian
 

Which Ascom driver do you use (6.5 SP1)?
Did you check the com port in the Win device manager ? 
there’s is also an issue with some Win updates/builds. check this info at the top of the Page 

https://explorescientificusa.com/pages/software-and-downloads-for-pmc-eight-system


Re: DEC axis not moving in certain position. Belt slipping. #EXOS2

 

Peter,
 
Yes, I saw the video before I responded.  Really couldn't figure out what you were trying to illustrate.  There's a small amount of shifting back and forth by the large pulley, but that could just be the worm pushing on an obstruction and then easing back from it as you release the clutch. Note that the belt is moving along with the large pulley.  
 
Unless badly under-tensioned, the belt cannot slip. It is toothed, as are the pulleys, and it does not stretch.  Now, we have seen the odd pulley with loose setscrews, but in those cases, it is a pulley slipping on a shaft (not the belt) and the behavior would be different than what you show in your video.   
 
When you engage the clutch, a small 'brake shoe' presses on the side of the ring gear, and that friction engages the outer shell of a given axis and transmits movement from the ring.  With the clutch disengaged, the outer shell is free to rotate, independent of the ring gear (which still remains engaged with the worm).  So a scenario where the motor drives the worm into an obstruction, and then you see a bit of bounce-back when you release the clutch, wouldn't surprise me.  

- Bob
 
--
Mounts: ES PMC-8 EXOS2, Serial
Scopes: SW 130P-DS, SV 102EDT, ZWO 60/280 Guide
Cameras:  Nikon D5300, Altair GPCAM2 290M
Software: ASCOM 6.3, CdC, AstroTortilla, BYN Pro, Sharpcap, PHD2
Computer:  Thinkpad x230, Win7Pro/64


Exos2 GT not responding via serial #ConfigManager #EXOS2 #pmc-eight

Michael
 

Good day Everyone,

I am reading in this forum already a long time, as I own an Exos 2GT PMC8 since 1 year.
I recently started using the telescope via Kstars/Ekos on a Raspberry Pi4 (Stellarmate OS), which worked fine until yesterday.
Since yesterday EKOS does not connect to the Mount anymore. I already tried on Windows via ASCOM and also different Serial/USB cables without any change.

If I start ASCOM diagnostics tool and select the EXOS2GT, the following output appears:

Create              Creating device
Connected           Connecting to device
Error               System.Runtime.InteropServices.COMException (0x80040402): Timed out waiting for received data
   bei ASCOM.Utilities.Serial.ReceiveTerminated(String Terminator) in C:\ASCOM Build\Export\ASCOM.Utilities\ASCOM.Utilities\Serial.vb:Zeile 1204.
   bei ASCOM.ES_PMC8.Telescope.CommandString(String Command, Boolean Raw)
   bei ASCOM.ES_PMC8.Telescope.GetRAMotorPosition()
   bei ASCOM.ES_PMC8.Telescope.set_Connected(Boolean value)
   bei CallSite.Target(Closure , CallSite , Object , Boolean )
   bei System.Dynamic.UpdateDelegates.UpdateAndExecute2[T0,T1,TRet](CallSite site, T0 arg0, T1 arg1)
   bei ASCOM.DriverConnect.ConnectForm.btnConnect_Click(Object sender, EventArgs e) in C:\ASCOM Build\Export\ASCOM.DriverConnect\ConnectForm.cs:Zeile 268.
Dispose             Disposing of device
Dispose             Completed disposal
ReleaseComObject    Releasing COM instance
GC Collect          Starting garbage collection
GC Collect          Completed garbage collection


so as far as I understand, there is something wrong with the RA output.
Any advise would be much appreciated.

BTW: I tried via WIFI Explore Stars on my iPad yesterday and it seems to work. I also tried to flash the firmware via the PMC8 configuration tool, but without success. The error message there is: No Propeller chip found on any serial port.

Thank you very much

Michael


Re: DEC axis not moving in certain position. Belt slipping. #EXOS2

Peter Danek
 

1. picture: the mesh is too-tight, belt slipping, the worm is not moving


2. picture: the mesh is too loose, a huge backlash

--
Mounts: ES EXOS-2 PMC-Eight, SW AZ GOTO
Scopes: SW 200P, SW 130P
Cameras:  Canon T3i, Canon XS, SV305 Pro - IMX290

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