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Re: Start up issues after connecting HC to wrong socket

 

I think Ports E and F are serial ports similar to the HC port, and the ST-4 autoguider port is just switch closures (probably really FETs) and wouldn't supply power or do damage to anything plugged into them.?? I'm thinking the problem might be something else, maybe your cable.

Someone at Losmandy can confirm this.


Re: Start up issues after connecting HC to wrong socket

 
Edited

It may have just been coincidence that the HC stalled out after plugging it into the wrong port. It might have happened anyway.?
I have had more than a few mounts glitch out or die on me in the last few years. I am dreaming of a simple, dummy proof, bullet proof, mount that will support over 100 pounds and isn¡¯t expensive!?
Am I asking too much?


Re: Start up issues after connecting HC to wrong socket

 

Covering the other ports is a great idea. I had to tape over one of the ports on a large variable battery after instantly burning out an astronomy camera. I am not going to worry too much about how ugly it is.


Re: Start up issues after connecting HC to wrong socket

 

It was one of the top two ports.?


Re: Start up issues after connecting HC to wrong socket

 

Hi Jeff,

Which port did you plug it into? The two ports (HC and Serial/GPS) are both serial connectors. There's no difference between them, other than the default baud rate setting. Plugging in the HC into the serial port will not damage the HC or the Gemini unit, but the HC may not connect to Gemini if the baud rate is not what it expects.

You may have some other issues with your HC, like a loose micro-SD card or just a bad cable.

Regards,

? ? ?-Paul


On Sun, Aug 28, 2022 at 03:52 PM, jeff marston wrote:
Last night, at a star party, I set up my G11T and plugged my hand controller into the wrong port. It didn¡¯t work of course, but when I noticed it and plugged it into the HC port it would stall out within the first?
few pages at startup. It stalled on the quick start/cold start etc. page or the mount selection page and would not go farther. I have been using my CGX-L mount recently and it isn¡¯t picky at all about where I plug in the hand controller. It isn¡¯t a great excuse but it¡¯s all I¡¯ve got. I tried unplugging everything and waiting for a minute or two a bunch of time, but?had no joy. Does anyone know of a fix short of getting a whole new Gemini 2 setup??

Jeff


Re: Problem controlling GM811G with latest ASIAIR Plus

 

I use a router in the field and at home. Maybe there is a way to access them through the router. Is the worse case you can use a router to email them when you get internet access.or are they lost when the session is over??

Also seeing that we are in the 21st century you could also use a nano router in the field and turn on your phone's hot spot feature to provide internet access so you could email them.?

Try it , could be a solution.?

--

Chip Louie Chief Daydreamer Imagination Hardware?

? ?Astropheric Weather Forecast - South Pasadena, CA?


Re: Start up issues after connecting HC to wrong socket

 

I used spare modular plugs I had laying around to fill in the empty jacks. Tape was too ugly.?

--

Chip Louie Chief Daydreamer Imagination Hardware?

? ?Astropheric Weather Forecast - South Pasadena, CA?


Re: indi driver update.

 
Edited

I'll help as best as I can, but you may want to post to the indi/ekos/astroberry forum. They are very helpful and responsive.??-- this forum covers all things ekos/indi/kstars/astroberry.?


I don't think that the link you provided is the right way to upodate astroberry. That link looks like a users documentation for getting a raspberry pi to work with the ekos stack on ubuntu-mate -- it's from 2016! I hope that you didn't follow it!!!

This is a good reference for astroberry:?

These are the instructions for updating from that wiki:?
"While connected to the Internet you can update your system by running below commands in your terminal: sudo apt update && sudo apt upgrade && sudo apt dist-upgrade"

I just tried that update command on my RPI and it succeeded. I can see the version of indi like this:?

apt list indi-bin
Listing... Done
indi-bin/unknown,now 1.9.7+deb10u1 armhf [installed,automatic]

So it's on 1.9.7, and you can see the changelog here:?

That has my changes and you can see them in the changelog:

  • Adding some basic PEC status and control to lx200gemini by @amendolajamie in #1675
  • Add Servo Precision control by @amendolajamie in #1683
  • Added "enable pec at boot" switch, and a display for "current pec guide speed" by @amendolajamie in #1685
  • Added RA/DEC guide speed by @amendolajamie in #1686
  • Fixed a bug where PEC was always enabled on startup. by @amendolajamie in #1693
  • Add firmware properties and checks. by @amendolajamie in #1698
  • UI Cleanup by @amendolajamie in #1704
?
Although those releases are all stable, there is always a small risk of some issue creeping into a stable release. This of course applies to any software, so it is generally a good idea to backup before updating. You can backup the sd card to your desktop before updating. If there is something critically wrong with the latest then just restore the backup.?


--
jamie.amendolagine@...


Re: RA axis movement or wiggle

 

On Sun, Aug 28, 2022 at 10:34 AM, Brian Valente wrote:
Back to the OP topic, the point here is that spring loaded worms are springy
?
Any adjustments that are considered should be made based on performance, not on how things 'ought to feel'
?
We just went through this with a reseller (unauthorized) who felt it was a value-add to adjust the worms according to what they thought it ought to feel like, and the result was a mess. We managed to get it resolved by following the factory spring-loaded worm adjustment video.
?
?

On Sun, Aug 28, 2022 at 9:25 AM HenkSB <haling@...> wrote:
On Sun, Aug 28, 2022 at 11:24 AM, Chip Louie wrote:
Henk,

I have never seen or read anything about APs design. When I originally penciled out using a spring loaded OPW on my G11 I did what seemed logical in my mind and used an outward travel limiter only and used as low a spring rate as possible to keep the worm fully engaged in the worm wheel. My thought was that sliding friction was bad and stiction was worse. By reducing sliding friction stiction should not be an issue while guiding. Because the worm should never stop moving once tracking and guiding is started. Additionally having an out travel limiter would help protect the worms.?
My conclusion is based on Roland's explanation in the document that Brian linked.? If you read paragraph 6, I don't know what else to conclude.? It's pretty much what you stated.

?

?


?
--
Brian?
?
?
?
Brian Valente
astro portfolio?
portfolio
astrobin?
Exactly! This is what I keep telling people, if the images work at the pixel pitch you are working at and whatever the atmosphere allows you to achieve who cares what your measurements are??

There are countless film and digital images that are technically flawed that have inspired millions. I have seen technically perfect images that are artless and flat. All images require interesting content otherwise why bother???

Worrying about counterweight shaft wiggle as a backlash indicator for fixed worms used to be somewhat useful though for the knowledgeable still not all that important.? But this is not important or useful in the age of spring loaded worms.?

--

Chip Louie Chief Daydreamer Imagination Hardware?

? ?Astropheric Weather Forecast - South Pasadena, CA?


Re: Start up issues after connecting HC to wrong socket

 

I will be interested to hear the answer, because I feel strongly that equipment should be designed so that plugging something into the wrong socket should not cause damage.? (An engineering best practice that seems to be unknown to astronomy equipment manufacturers.)? I have tape over all the sockets I don't use on my Gemini.

What's intriguing is that it partly works.? There may not be much wrong.


Start up issues after connecting HC to wrong socket

 

Last night, at a star party, I set up my G11T and plugged my hand controller into the wrong port. It didn¡¯t work of course, but when I noticed it and plugged it into the HC port it would stall out within the first?
few pages at startup. It stalled on the quick start/cold start etc. page or the mount selection page and would not go farther. I have been using my CGX-L mount recently and it isn¡¯t picky at all about where I plug in the hand controller. It isn¡¯t a great excuse but it¡¯s all I¡¯ve got. I tried unplugging everything and waiting for a minute or two a bunch of time, but?had no joy. Does anyone know of a fix short of getting a whole new Gemini 2 setup??

Jeff


Re: indi driver update.

 

Jamie I recently installed the stable release of astroberry.? The Ekos version is 3.5.5.? I am pretty sure that your code is probably not in there.? Is it safe to install the latest version of astroberry?? If they advertise a stable release, then I presume the latest is unstable.

Any advice on how to update/upgrade Ekos in a safe way?? I need something in a later release and started with apt-get update/upgrade and got several error messages.? I am getting errors about Buster and astroberry.? The indillib link talks about an rpi-update command, also telling that it broke the entire installation.

Hopefully nothing is broken after what I did.? Looking at a link in indilib?, it has a long procedure but it's unclear if that is just for upgrading.

Your comment about just upgrading sounds easy, did I miss something?? Of course, I don't want to reinstall my entire distro from scratch, just want the updates, and not from source code.


Re: indi driver update.

 

The asiair is a raspberry pi. If you're comfortable doing so, you can load any rpi distro including astroberry, stellarmate etc. It's a bit of a time and effort investment though. Just use a separate sd card to try it out. Those two distros do have my driver updates.?

If your time settings are off, slews and plate solves can fail. I'd check that first.?
?
--
jamie.amendolagine@...


Re: RA axis movement or wiggle

 

Back to the OP topic, the point here is that spring loaded worms are springy

Any adjustments that are considered should be made based on performance, not on how things 'ought to feel'

We just went through this with a reseller (unauthorized) who felt it was a value-add to adjust the worms according to what they thought it ought to feel like, and the result was a mess. We managed to get it resolved by following the factory spring-loaded worm adjustment video.



On Sun, Aug 28, 2022 at 9:25 AM HenkSB <haling@...> wrote:
On Sun, Aug 28, 2022 at 11:24 AM, Chip Louie wrote:
Henk,

I have never seen or read anything about APs design. When I originally penciled out using a spring loaded OPW on my G11 I did what seemed logical in my mind and used an outward travel limiter only and used as low a spring rate as possible to keep the worm fully engaged in the worm wheel. My thought was that sliding friction was bad and stiction was worse. By reducing sliding friction stiction should not be an issue while guiding. Because the worm should never stop moving once tracking and guiding is started. Additionally having an out travel limiter would help protect the worms.?
My conclusion is based on Roland's explanation in the document that Brian linked.? If you read paragraph 6, I don't know what else to conclude.? It's pretty much what you stated.



--
Brian?



Brian Valente
astro portfolio?
portfolio
astrobin?


Re: RA axis movement or wiggle

 

On Sun, Aug 28, 2022 at 11:24 AM, Chip Louie wrote:
Henk,

I have never seen or read anything about APs design. When I originally penciled out using a spring loaded OPW on my G11 I did what seemed logical in my mind and used an outward travel limiter only and used as low a spring rate as possible to keep the worm fully engaged in the worm wheel. My thought was that sliding friction was bad and stiction was worse. By reducing sliding friction stiction should not be an issue while guiding. Because the worm should never stop moving once tracking and guiding is started. Additionally having an out travel limiter would help protect the worms.?
My conclusion is based on Roland's explanation in the document that Brian linked.? If you read paragraph 6, I don't know what else to conclude.? It's pretty much what you stated.


Re: indi driver update.

 
Edited

I have no insight into the asiair. I don't have one, and haven't been able to gleen what version they are using. I'm not sure what logs they provide, but there may be some version information in those. If you can get those I might be able to tell.?

edit: this is the release log from asiair -- I don't see any mention of indi updates, but I'm assuming that there have been indi updates, and they just don't mention "indi"



Having said that, I don't expect my changes to result in this. I did not modify slew commands.?

Jamie
--
jamie.amendolagine@...


Re: RA axis movement or wiggle

 

On Sat, Aug 27, 2022 at 05:43 PM, Jim Magill wrote:
But how about tolerance to wind?? ?I have been trying to use my 127mm refractor at f7.5 or f5.3 (with the reducer) and having difficulty even with a mild breeze.? ?
With lighter winds, I'd check the inertia being placed about the DEC axis and minimize that.? A 5-inch refractor can increase the inertia significantly about the declination axis.? Dampening a large radius balance wheel (pendulum) structure that can apply torque forces down to the tripod can easily become an issue.? The DEC may not track much, but it can wind up if buffeted.


Re: RA axis movement or wiggle

 

On 2022-08-27 23:38, Peter Boreland via groups.io wrote:
Chip, if your Ra guide error is twice your Dec error will you get round stars?
If both are smaller than the limit of resolution in the picture, yes.? It is normal for RA error to be larger, because the earth is rotating in RA and not in declination, so we have a motor running in RA but not in declination.

Also, now that we polar-align with very precise methods, we can get dec error extremely small, while RA error is not a lot smaller than it was with older methods.


Re: RA axis movement or wiggle

 

Henk,

I have never seen or read anything about APs design. When I originally penciled out using a spring loaded OPW on my G11 I did what seemed logical in my mind and used an outward travel limiter only and used as low a spring rate as possible to keep the worm fully engaged in the worm wheel. My thought was that sliding friction was bad and stiction was worse. By reducing sliding friction stiction should not be an issue while guiding. Because the worm should never stop moving once tracking and guiding is started. Additionally having an out travel limiter would help protect the worms.?

--

Chip Louie Chief Daydreamer Imagination Hardware?

? ?Astropheric Weather Forecast - South Pasadena, CA?


Re: RA axis movement or wiggle

 

Peter,

If you look close enough no, but if you backup enough yes. In absolute terms no you should see eggs.

I'm no expert like you guys but like all digital images I imagine it depends on pixel scale, amount of error difference and what scale the resulting images are observed at.?

--

Chip Louie Chief Daydreamer Imagination Hardware?

? ?Astropheric Weather Forecast - South Pasadena, CA?