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indi_celestron_aux

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Replied by Fabrizio on topic indi_celestron_aux

Hi Stephen,
thank you for your testing.
I suppose tracking was on by HC and not by Kstars. So slewing by HC to the 3 sync points, avoided the wrong tracking resume after sync managed by the AUX driver.
OK.
The cordwrap is ON by default, with North position. So, slewing from Vega to Dubhe produces about 288 deg CW rotation of the RA axis.
That is wrong. I took horizontal coords instead of equatorial coords. The shortest path from Vega to Dubhe do not cross the north meridian, so the cord wrap function shouldn't be involved.
Last edit: 3 years 4 months ago by Fabrizio. Reason: Errata Corrige
3 years 4 months ago #64347
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Replied by Maciek on topic indi_celestron_aux

After mount and kstars restart I got into this and can reproduce it:

1.Connect
2. Activate align
3. Got 0 sync point at this moment, and Kstars show scope at South on horizon.
4. I selected South ..about 30deg over horizon and synced to it
5. Selected East ..about 30deg over horizon and goto it
6. Mount moved 270deg LEFT and 30deg UP !!!!

Mount should not go 30deg UP because it was synced only to point in P4.
Is it possible that this start point (south at horizon level) is somehow counted into movement calculation ?
Why it moved 270 left and not 90 right where cord wrap is off ?


Warning: Spoiler!

3 years 4 months ago #64348
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Replied by Maciek on topic indi_celestron_aux

After thinking about it a little - in my humble opinion, alignment subsystem "black box" is working fine, the problem is that driver not using information about current position from it to calculate moving vector
3 years 4 months ago #64351
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Replied by Fabrizio on topic indi_celestron_aux

I took a look at the cord wrap code. It is not yet complete. N E S W positions are fixed to 0, 90, 180, 270 degrees with respect to RA/AZ encoder zero position. So, if encoder zero position do not point to N, cord wrap happens in the wrong place.
3 years 4 months ago #64401
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Replied by Gary McKenzie on topic indi_celestron_aux

Hi,
is there any chance this driver will go in to the standard Kstars/Ekos distribution in the near future? As a linux illiterate I have tried compiling, but as I don't know what I'm doing, can't get things to work properly. This driver seems just what I need for my wedge mounted CPC925.
thanks
Gary
3 years 4 months ago #64508
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Replied by Fabrizio on topic indi_celestron_aux

Hi Gary,
I am working on the driver and I expect to have a decent version in weeks not months. Then I submit it to indi-lib mantainer (Jasem Mutlaq) for indi-lib merging. This adds some more weeks.
I suppose your scope working in equatorial mode. If debugging does not contradict me, the alignment subsystem does not distinguish between AltAz and Equatorial, if you have at least 2 sync points.
It may be worth to try version 0.7 (indi-1.8.6)(no equatorial mode, no tracking button enabled in mount tab, but tracking can be indirectly controlled from indi main tab, option "On Set").
You can install debian/ubuntu packages of indi-1.8.6 following instructions given here www.indilib.org/download.html .
sudo apt-add-repository ppa:mutlaqja/ppa
sudo apt-get update
sudo apt-get install indi-full gsc
3 years 4 months ago #64549
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Replied by Craig Oakley on topic indi_celestron_aux

When building, which branch of the code should we be using?

"indi-celestronaux" is the most up-to-date, but still at version 0.7. "indi-celestronaux_2" is a couple days old but at version 0.8 and contains the mount type switch.

Thanks
3 years 4 months ago #64573
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Replied by Gary McKenzie on topic indi_celestron_aux



Thank you Fabrizio,
I will wait until it goes into the main repository - I am moving house in 6 weeks or so and will have to build a new observatory ( I just finished one at my current home!). I plan to fully automate it with roof motor, AAG Cloudwatcher etc. I was going to do this at my currrent observatory but we bought a new house in a much darker sky. I am happy to wait for completion of the driver.....

Really appreciate your efforts, the driver will convert my equatorial wedge mounted CPC925 into an imaging machine that can run alone..
Gary
3 years 4 months ago #64576
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Replied by Fabrizio on topic indi_celestron_aux


Now there are 3 branches in my repo github.com/fabriziop/indi-3rdparty

celestronaux_eqtrack: this is a WIP branch
0. it is the old version plus
1. fixed premature stop of manual slew when tracking is on;
2. forced alignment subsystem to be on by default;
3. removed a big part of driver code around alignment, after the discovery that it is already embedded into the subsystem (outdated subsystem doc).
4. now debugging wrong tracking after sync and goto.

celestronaux_eqtrack_1: new driver version 0.8 branch
0. above changes not present here.
1. has mount type selection button.
2. has tracking buttons enabled.

celestronaux_eqtrack_2: a variant of celestronaux_eqtrack_1 branch
This a test to understand if the alignment subsystem does really manage altaz and equatorial mounts in the same way.
3 years 4 months ago #64579
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Replied by Maciek on topic indi_celestron_aux

Branch celestronaux_eqtrack results:


1. Power on mount
2. Start Kstars
3. Connect Ekos
4. Kstars shows that mount is on South at horizon level
5. Sync caux mount to South ~20deg over horizon, Kstars updating mount position on map to this point
6. Goto east on same ~20deg over horizon - up/down movement not needed, only to left
7. Mount moving -90deg left and ~20deg up (now it is ~40deg over horizon)
8. Kstars show caux mount in South 20deg up


After sync in point 5 it should not go up 20deg and Kstars did not show vertical move, but mount actually did move up

Bug with "have to disconnect caux before can stop indi in Ekos" is still there

log:

Warning: Spoiler!
3 years 4 months ago #64580
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Replied by Ken Kelso on topic indi_celestron_aux

That's not my experience on NexStar 6SE Luzik:

0: Scope horizontal and pointing North (or any direction in Azimuth)
1: Switch on Scope
2: Start KStars/Ekos and connect to Scope etc.
3: Using the Mount Control, select AZ/AL and enter AZ 000:00:00, Alt 00:00:00 and Sync.
4: Enter AZ 090:00:00 and GoTo
5: Scope slews to correct position.

I wonder if the 20 degree deviation you are seeing is something to do with the final approach, the scope will dip and then come up to take account of the backlash in the gears.
Also, in the northern hemisphere, it should go past the setting when slewing east and go back west for the final approach.

As at present the designated park position is north it would be handy if the start up position was also north.

Ken
3 years 4 months ago #64582
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Replied by Maciek on topic indi_celestron_aux

There is little difference. Please restart your mount and redo your test but:

Move mount 20deg UP (not really necessary)
In point 3 enter AZ 0 ALT 20 and sync, then goto AZ 90 ALT 20. Did mount move UP/DOWN ? Should it? My mount goes another 20deg UP, so it's on 40deg
3 years 4 months ago #64583
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