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Date

Re: TP-Link setup

 

Hi Greg

>>> I connected it to my laptop by the ethernet cable and got power from the supplied power cord. I can't get the setup page by entering 192.168.0.254

This is pretty straightforward. the only variables here are the cable (try a different one known to work if possible) and the router setup. you might reset the router just to make sure its in default mode



On Fri, Sep 13, 2019 at 8:41 PM Greg via Groups.Io <gregmorris425=[email protected]> wrote:
I got a TP-Link tl-wr702n to use with my gm811 and I am just not understanding something in the setup. I connected it to my laptop by the ethernet cable and got power from the supplied power cord. I can't get the setup page by entering 192.168.0.254 networking is not my strong suit but normally I can follow directions and search the internet and get things going. This has proven to be frustrating. I can connect it to my router by ethernet and connect to it wirelessly with my laptop and get internet so I feel sure the tp-link is not the problem.


Greg



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Brian?



Brian Valente
portfolio


TP-Link setup

 

I got a TP-Link tl-wr702n to use with my gm811 and I am just not understanding something in the setup. I connected it to my laptop by the ethernet cable and got power from the supplied power cord. I can't get the setup page by entering 192.168.0.254 networking is not my strong suit but normally I can follow directions and search the internet and get things going. This has proven to be frustrating. I can connect it to my router by ethernet and connect to it wirelessly with my laptop and get internet so I feel sure the tp-link is not the problem.


Greg


Re: Losmandy SLW Adjustment video - moved to YouTube

 

Keith

the photos i showed a while ago has the spring loaded worm on the top right only

the bottom screws I think had a cap missing, but no spring

On Sun, Sep 8, 2019 at 8:18 AM Keith N <keithdnak@...> wrote:
Thanks Chip.? So there are no spring washers on those screws then in the final production design (some photos of Brian showed a spring on the right screw but that was during the design phase I believe).

Keith



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Brian?



Brian Valente
portfolio


Re: Losmandy SLW Adjustment video - moved to YouTube

Keith N
 

Thanks Chip.? So there are no spring washers on those screws then in the final production design (some photos of Brian showed a spring on the right screw but that was during the design phase I believe).

Keith


Re: Losmandy SLW Adjustment video - moved to YouTube

 

Hi Keith,

The bottom cap screws are not left very loose, just loose enough to allow for the very small movement needed for the worm in the OPW to adjust for changes in backlash. The backlash travel is very small, you cannot see it, you almost cannot feel it on my mount. I have not put a dial indicator on it but the movement is very small.?
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Chip Louie - Chief Daydreamer Imagination Hardware


Re: Losmandy SLW Adjustment video - moved to YouTube

Keith N
 

I don`t have the SLW but have a question for those who do: are the 2 bearing block screws that come from underneath left quite loose then?

Keith


Re: Setting up a flat panel target

 

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Thanks Paul and everyone

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This was the bit I was primarily interested in, but it was helpful to hear how everyone is doing it

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Thanks

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Brian

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portfolio https://www.brianvalentephotography.com/

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From: [email protected] [mailto:[email protected]] On Behalf Of Paul Kanevsky
Sent: Thursday, September 5, 2019 6:36 PM
To: [email protected]
Subject: Re: [Losmandy_users_io] Setting up a flat panel target

?

If you're using Gemini, one way to do this is to define a Home location pointing at the flat panel. You can then command Gemini to go Home when you need to take flats, or park when you are ready to shut down.

If you do decide to save coordinates, use Alt/Az instead of RA/Dec.

Regards,

? -Paul


Re: Setting up a flat panel target

 

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What Paul has described is exactly what I do. The Optec Alnitak flat panel is secured to the observatory wall by one of those television mounts that enables one to pull out and move to the left or right. The top part of the flat panel sits above the observatory wall by about eight inches. This is low enough to never obstruct the field of view of the scope when pointed to the night sky. The beauty of the Gemini system is that there are a number of different Park settings available. If you run scripting software, you need to be able to specify which ¡°Home¡± setting to fully automate the process.

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Having said this, I would prefer to have the flat panel mounted on the inside of the dome of the observatory so that the scope is pointing up at an angle similar to normal operations. The commercial SCT I have is subject to mirror shift. However, this plan confronts a problem ¨C how to power a flat panel and be able to turn it on and off, etc. when it is affixed to the dome. At the moment, the flat panel is powered by the supply which came with it and delivers around 270 volts to the panel. Both the flat panel and the power supply must be affixed to the dome, and powered by, say, a battery which is charged up by a solar panel during the day. I am looking around for an electrical engineer who could guide me through this set up.

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  • Greg

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From: [email protected] <[email protected]> On Behalf Of Paul Kanevsky
Sent: Friday, 6 September 2019 11:36 AM
To: [email protected]
Subject: Re: [Losmandy_users_io] Setting up a flat panel target

?

If you're using Gemini, one way to do this is to define a Home location pointing at the flat panel. You can then command Gemini to go Home when you need to take flats, or park when you are ready to shut down.

If you do decide to save coordinates, use Alt/Az instead of RA/Dec.

Regards,

? -Paul


Re: Setting up a flat panel target

 

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See

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Derek

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From: [email protected] [mailto:[email protected]] On Behalf Of Brian Valente
Sent: Thursday, September 05, 2019 11:28 AM
To: [email protected]
Subject: [Losmandy_users_io] Setting up a flat panel target

?

For those of you who have large(r) telescopes, how do you handle your flats, and if you are automating them, what is your strategy?

the reason I'm asking here on losmandy is this: i have a 12" RC and i need to do the flats in a semi-automated fashion.?

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i'm thinking to set up the flat panel where i can slew the telescope to point at it, and then remotely turn on the panel and take flats.?

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do folks do this, and if so do you have any advice on how to set this up? maybe slew to the location, record the coordinates, set it up in my imaging program, etc.

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or maybe people do something entirely different?

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I apologize if this is too far off topic

?

?

thanks

?

Brian?

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?

?

Brian Valente

portfolio

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Virus-free.


Re: Setting up a flat panel target

 

If you're using Gemini, one way to do this is to define a Home location pointing at the flat panel. You can then command Gemini to go Home when you need to take flats, or park when you are ready to shut down.

If you do decide to save coordinates, use Alt/Az instead of RA/Dec.

Regards,

? -Paul


Re: GM811G--pier extension or RA extension?

 

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I am WAAAY behind, and as such have not read the responses to this query.. But there is a third option, as you said (roughly) ¡°hit the tripod leg¡±.. i.e. there is no problem clearing the motors..

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For my Stellarvue 130mm Triplet Refractor, which is Carbon Fibre and seriously nose heavy, I added some serious counterweight near the FeatherTouch focuser so the scope was pushed much farther forward in the G11 saddle.. And yes, I love the RA Extension, which has the added benefit of splitting the mount in half, making transport much easier..

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:-))

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Derek

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From: [email protected] [mailto:[email protected]] On Behalf Of jmyers1951@...
Sent: Wednesday, September 04, 2019 8:05 AM
To: [email protected]
Subject: [Losmandy_users_io] GM811G--pier extension or RA extension?

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All:

I mounted my meter-long Mak-Newt OTA on my GM811G, and while it doesn't hit the HD tripod leg as I slew, it comes perilously close (and did hit a dew heater control I had attached with a Velcro strip to the tripod leg).

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So, to avoid this in the future and to give me a margin of error, I figure I need either a pier extension OR an RA extension kit.?

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Any advice on this?? I do NOT plan on getting a longer OTA (famous last words).? My sole interest here is AP--if I want to do visual, I have a perfectly nice Dob.??

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Also, if a pier extension is the way to go, any thoughts on the 8" extension vs the 12" extension?

Thanks

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Virus-free.


Re: Setting up a flat panel target

 

Brian:

I use an electoluminated light panel that is about 16" x 12" that when I am ready to take the flats, align my 8" C8 straight up and take the flats.


John Hobbs
hobbs_john@...


-----Original Message-----
From: Brian Valente <bvalente@...>
To: Losmandy_users <[email protected]>
Sent: Thu, Sep 5, 2019 2:28 pm
Subject: [Losmandy_users_io] Setting up a flat panel target

For those of you who have large(r) telescopes, how do you handle your flats, and if you are automating them, what is your strategy?

the reason I'm asking here on losmandy is this: i have a 12" RC and i need to do the flats in a semi-automated fashion.?

i'm thinking to set up the flat panel where i can slew the telescope to point at it, and then remotely turn on the panel and take flats.?

do folks do this, and if so do you have any advice on how to set this up? maybe slew to the location, record the coordinates, set it up in my imaging program, etc.

or maybe people do something entirely different?

I apologize if this is too far off topic


thanks

Brian?



Brian Valente
portfolio


Setting up a flat panel target

 

For those of you who have large(r) telescopes, how do you handle your flats, and if you are automating them, what is your strategy?

the reason I'm asking here on losmandy is this: i have a 12" RC and i need to do the flats in a semi-automated fashion.?

i'm thinking to set up the flat panel where i can slew the telescope to point at it, and then remotely turn on the panel and take flats.?

do folks do this, and if so do you have any advice on how to set this up? maybe slew to the location, record the coordinates, set it up in my imaging program, etc.

or maybe people do something entirely different?

I apologize if this is too far off topic


thanks

Brian?



Brian Valente
portfolio


Re: GM811G--pier extension or RA extension?

 

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I think John pretty much netted it out.

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You could do it either way. The RA extension is quite a bit less, but you have the added benefit of being able to break apart RA and DEC

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The pier extension would give you more clearance, but it would still be a single piece, so maybe better for permanent installs or less travel?

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I just realize I have a 12¡± extension I experimented with but I¡¯m not using, if you¡¯re interested in picking one up used.

?

?

Thanks

?

Brian

?

portfolio https://www.brianvalentephotography.com/

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From: [email protected] [mailto:[email protected]] On Behalf Of John Bridgman
Sent: Thursday, September 5, 2019 9:27 AM
To: [email protected]
Subject: Re: [Losmandy_users_io] GM811G--pier extension or RA extension?

?

I guess the question is how much additional clearance you need/want. The RA extension is only going to give you a couple of inches at best, while a pier extension will give you 8 or 12 inches depending on model.?

In terms of pier extension size I would go with 12" for visual (I'm 6'5) but for AP I would go with the 8" unless there is some other reason for extra height (seeing over the sides of your hypothetical future observatory is a good one :)).


Re: GM811G--pier extension or RA extension?

John Bridgman
 

I guess the question is how much additional clearance you need/want. The RA extension is only going to give you a couple of inches at best, while a pier extension will give you 8 or 12 inches depending on model.?

In terms of pier extension size I would go with 12" for visual (I'm 6'5) but for AP I would go with the 8" unless there is some other reason for extra height (seeing over the sides of your hypothetical future observatory is a good one :)).


Re: GM811G--pier extension or RA extension?

 

The RA extension worked out for me, but this was with a different OTA. But this is what it is intended for, to give some extra clearance. Going higher vertically may not help the clearance in the same way. But what I especially like is being able to break the RA into two pieces with the thumbscrews, which splits the mount into 2 sections for lower weight and smaller sizes, for set-up, tear down and transportation.?


Re: Guiding expectations

 

Tom,

In the (diagnostic) scenario I described (turning off guiding but watching/logging the guide star) the RMS is of little meaning unless you have no drift. RMS is a statistical measure around a mean. So if there is a trend it doesn't mean much until the data is de-trended. I don't believe any of the guide programs de-trend before announcing an RMS figure.

Mark


Re: Two Questions About Gemini-2

 

On Wed, Sep 4, 2019 at 03:24 PM, Mark de Regt wrote:

1. My Gemini-2 hand controller does not save the time, nor does it get the time from the GPS (although it does take the latitude, longitude and UTC offset from the GPS).? Is this just the way it is, or am I doing something wrong.? I just put in a new battery, and it does keep good time if I leave it on, but the time is gone when I turn the system off and then back on.

Mark,
I had a similar problem (see my post on the Gemini group of around a month ago). A new battery, but the system was not saving the time, although the location was correct (I did not use a GPS). It turned out the battery clip was not making good contact; check on the web interface the voltage of the internal battery, and if it is low then this might be the problem. I bent the clip and everything came back to normal. Other members also suggested me that after changing the battery you should immediately switch on the Gemini2 and set time and location, or otherwise the battery is drained quickly due to a bug; if you didn't do it, then your battery may need to be changed again.

Ciao, Claudio.


Re: Guiding expectations

Tom McPhail
 

Hi All,

Thank you for the comprehensive responses. Mark I've just read yours for the second time and I'm still digesting, I clearly have much to learn :) I'm going to read it again now.

I'm using TheSkyX to image/guide and I'm slowly, slowly trying to understand what everything means. I'm about to do a second pass read of the Charles Bracken book, I was so excited to get into this hobby I spent a lot of money and bought lots of gear while learning how it all worked. Inevitably that ends with some frustration as my knowledge catches up and I realise some of my spending might have been better targeted. That being said, I am very happy with my G11.

Related to your first point about assessing the performance of the mount. If I turn off guiding and just enable logging/watch the graph...I presume I would expect to see the RMS slowly increase right? Since tracking errors that my mount might have will slowly cause a guide star to drift further from it's original position. Or is this an oversimplification, should I in fact see some sort of back and forth as the imperfections in the gear meshing play out as the RA tracks?

Many thanks to all again, Tom


Re: Two Questions About Gemini-2

 

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Thanks!

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From: [email protected] <[email protected]> On Behalf Of Brian Valente
Sent: Wednesday, September 4, 2019 4:03 PM
To: [email protected]
Subject: Re: [Losmandy_users_io] Two Questions About Gemini-2

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Hi Mark

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great questions

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1. yes it should save the time. not sure why that's happening to you, make sure you save the values and you do not have any settings on your computer to overwrite these values (if you are connected to a computer)

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2. yes you can use any speed you like. i think it's more of a caution that you probably?don't want to use slew to center a star, it would be pretty?aggravating?

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On Wed, Sep 4, 2019 at 3:24 PM Mark de Regt <deregt@...> wrote:

Hi,

?

I¡¯ve search high and low, and cannot find answers to these two questions.

1. My Gemini-2 hand controller does not save the time, nor does it get the time from the GPS (although it does take the latitude, longitude and UTC offset from the GPS).? Is this just the way it is, or am I doing something wrong.? I just put in a new battery, and it does keep good time if I leave it on, but the time is gone when I turn the system off and then back on.

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2. As I understand it, when building a model from the startup menu, one must center the star only using ¡°guide¡± or ¡°center¡± speed, not the faster two speeds.? But I find no indication that I must go that slowly when doing a sync on a bright star, or when building a model using the MENU | Align |Alignment option to add to a model (or doing a one-star alignment).? Am I free to slew quickly (it can take a LONG time to slew a few degres in ¡°center¡± mode).

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Thanks.

?

Mark


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--

Brian?

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Brian Valente

portfolio