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INDI Library v1.8.5 Released (19 Apr 2020)

April 2020 release of INDI Library v1.8.5 introduces new drivers while providing fixes and improvements to existing devices and core framework.

Eqmod and custom gear ratio

9 months 1 week ago 9 months 1 week ago by Korneliusz.
Korneliusz
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Eqmod and custom gear ratio #42279
Hi

I have NEQ6 mount with belts (2.5:1 ratio) and 0,9° stepper motors, so my final gear ratio is 5:1, which is different then original ratio in this mount.

It is possible in easy way to change ratio in indi to get good working goto and tracking?

Best regards

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3 months 4 days ago
Astrofriend
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Eqmod and custom gear ratio #50221
Hi,
I also have that problem. I have rebuilt my EQ6 mount from spur gear to belt drive and now have a different gear ratio. When I use EQMod in Windows there is a setup where I can setup custom gear ratio. In EQMod Indi I cant find where to do it. In the EQMod Mount Firmaware I have found the ratios for RA/DEC steps and RA/DEC IT Freg, but it's not possible to change it.

Anyone with an idea or solution ?

There were also a setting in EQMod Windows for RA drift, that one is needed too. I can't find it in EQMod Indi.

Here is how I changed the gear ratio in EQMod Windows:
www.astrofriend.eu/astronomy/projects/pr...ling-rebuilding.html

Who built the Indi EQMod ?

I really want to use Astroberry to controll my equipment, but maybe this stop that.

/Lars

TS130 APO & Riccardi field flattener / Sigma APO 150 mm f/2.8
EQ6 mount / Star Adventurer
Canon EOS 5D/6D
Lot of patience

Homepage:
www.astrofriend.eu/
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3 months 4 days ago 3 months 4 days ago by Korneliusz.
Korneliusz
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Eqmod and custom gear ratio #50222
Hi

I found solution in indi code. I attached screenshot from file skywatcher.cpp with marked places where you need insert values for your mount. Then, after this changes you need compile sources and install it.

How compile and install Indi from source you can find here: github.com/indilib/indi

astropolis.pl/uploads/monthly_2019_09/51...dc1dea217d02e049.png

Best regards
Korneliusz

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3 months 4 days ago
Astrofriend
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Eqmod and custom gear ratio #50223
Hi Korneliusz,
That was a fast answer, thank you very much.

Then there is a solution, but I need to change the DEC ratio too, maybe just scroll down in the list.

What happen when there is an update of EQMod, will the changes dissappear ? Maybe better if it's possible to have some over ride of the original settings as other parameters are possible to do with and then it's saved so it's there when EQMod is updated.

But that is far too complicated for me to do, I know a friend, maybe he could do it.

I think there are many people that have rebuilt there EQ6 mount or similar and need a custom gear setup. Maybe something that can be implemented as standard in EQMod ?

Thanks a lot for the information !

/Lars

TS130 APO & Riccardi field flattener / Sigma APO 150 mm f/2.8
EQ6 mount / Star Adventurer
Canon EOS 5D/6D
Lot of patience

Homepage:
www.astrofriend.eu/

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3 months 4 days ago
Ihoujin
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Eqmod and custom gear ratio #50232
You could compile a custom version of the EQMod driver and give it a unique name.

INDI/KStars on Raspberry Pi 4, 4gb
Raspbian Buster with AstroPi3 script configuration
Skywatcher HEQ5 Pro Mount
Canon 600D Camera
Orion SSAG/ASI120mm @280mm Guide Scope
PHD2
Adafruit Motor Hat shield
Adafruit GPS Module
Generic Bluetooth Joystick.
Startech 7 port powered USB Hub.

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3 months 3 days ago
Astrofriend
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Eqmod and custom gear ratio #50262
Hi,
Yes, that sounds like an good idea. It will just take some time to learn how to edit and compile the file.

Thanks !

/Lars

TS130 APO & Riccardi field flattener / Sigma APO 150 mm f/2.8
EQ6 mount / Star Adventurer
Canon EOS 5D/6D
Lot of patience

Homepage:
www.astrofriend.eu/

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2 months 3 weeks ago
Astrofriend
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Eqmod and custom gear ratio #50466
Hi Korneliusz,
Now I have succeded to download the INDI library with drivers. I use the tool Eclipse which I used to develop Plugins written with JAVA. It can handle C++ files also after I downloaded some complement. I have edit the Skywatcher file with the custom gear ratio according to your instructions. Still I can't compile it, but I think I get it to work in the common days, it's just a setup in the Eclipse tool, the C++ compiler is already downloaded and installed.

After that I made a copy of the compiled EQMod directory, but how to transfer it to the Raspberry from the PC. Shall I set the SD card in the PC and copy it, or is there other better alternatvie ?

And what happen when I start Astroberry, will the new EQMod2 driver show up in the list of INDI drivers by automatic ?

Thanks for all great help !

/Lars

TS130 APO & Riccardi field flattener / Sigma APO 150 mm f/2.8
EQ6 mount / Star Adventurer
Canon EOS 5D/6D
Lot of patience

Homepage:
www.astrofriend.eu/

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2 months 3 weeks ago
Ihoujin
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Eqmod and custom gear ratio #50468
It would probably be easier to compile it on the pi itself and avoid any complications with setting up a cross compile configuration.
This might help.
indilib.org/develop/developer-manual/163...ent-environment.html

INDI/KStars on Raspberry Pi 4, 4gb
Raspbian Buster with AstroPi3 script configuration
Skywatcher HEQ5 Pro Mount
Canon 600D Camera
Orion SSAG/ASI120mm @280mm Guide Scope
PHD2
Adafruit Motor Hat shield
Adafruit GPS Module
Generic Bluetooth Joystick.
Startech 7 port powered USB Hub.

Please Log in or Create an account to join the conversation.

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