开云体育

Thank you for responding to my questions, Brian.

My question about TTL was prompted by the section on the website, second to last item, under DRIVE ELECTRONIC GEMINI 2 GOTO?? GEMINI 2 GOTO ELECTRONICS (G):? Auto Guide Port (TTL)

If my old back can handle the extra 6 lbs of EQ head weight ( 27 lbs vs 33 lbs) , are there any other differences between the GM811GHD and the G11G beside (1) $300 cost, (2) larger DEC gear, and (3) increased weight capacity of 10 lbs??

Minor nit:? I noticed that the photos of the mount for the GM811G and the G11G both show a mount inscribed "G-11."? Is that designation merely telling us that the two mounts are just variations of the same 'generic' G-11 mount?? I am probably not wording this effectively, but I hope you get my idea.

Warren

Hi all, thanks for the responses.??

Brian, I tried the configurable mount section, and the price difference was $5, even though the text said save $200 and $55.? ? ?This first price is the G11G, which according to the specs, come with the HD tripod for $3395, plus the accessories.? The second price is from the configurable options where I was "forced" to choose the MA option if I wanted the HD tripod, plus the RA and GPS.? ?

I've been looking at my use cases.? ?And I can't see me ever using more than an 11inch SCT on it, and that would be for visual which weights 27.5 pounds.? Add in 10 pounds for for the usual accessories and that's 37.5 pounds for visual.? For AP, I'd likely max out at an 8" RASA which is 17 pounds and even the largest refractors I'd likely buy are in the 16 to 18 pound range, not counting all the extras needed for AP.? So I'm thinking perhaps the GM811G w/ HD Tripod might suit my needs as well as the G11G.? ?Besides the payload weight difference, one has a?2.812" DIA versus a?5.625" DIA DEC Gear.? ?Is there any practical benefit to having the larger gear?? I'd like to "future proof" myself as much as possible.

Lastly, ?talks about upgrading older mounts and says you need the RA extension to get the tucked in motors.? Does that mean if I order a mount without the $295 dollar RA extension today, I won't get the tucked in motors?? Or can I assume that all the updates on this page (tucked in high torque servo motors, one piece worm block with spring loaded worm) are standard on the current models?

All,
Sorry for the barrage of newby questions, I am working my way through the manual to get to grips with all the features on the G11, my first motorised eq, tonight's topic of interest is Encoders.
If I understand there are 2 types of Encoders, the type that is incorporated into the motor, this type uses pins on the motor din plugs to connect, and the other type that fits to the RA and DEC shafts and connects to Gemini via the encoder RJ45 socket..Please correct my if I am wrong!

I understand what they do so my questions are:
Except for manual guiding when attached to a computer running Stellarium were the benefit is obvious,? are they useful for any other purpose and worth the money?

What is the best type, motor or shaft?

Thank you in advance..

One night I was testing my mount doing a No Meridian Flip imaging session. (Something Scott Losmandy mentions about the RAEXT)
As the mount came upon the warning beep, I reset the limit. I did that 3 times watching my telescope did not crash into my EX12 extension.
Finally, at 03:00 Hrs. I stopped as crashing was eminent.

So not only did I learn I don't have to do Meridian Flips anymore, I I also learned how to set limits on the fly, without disturbing my imaging run.

--
SonnyE


(I suggest viewed in full screen)

If you are using the Gemini virtual controller, you could try using the Rev RA and Rev Dec check boxes just below the 4 diamond touch pad. (Reverse RA and Dec)

Other than that, I've used Stellarium for probably 5 years now, with two different mounts. I use it as basically my Planetarium Program and slew the mount and telescope to the objects I find in it of interest.
One of my latest was a tiny Nebula called the Fossil Footprint Nebula, and a while back a relatively new Nebula that is estimated to be only 600 years old.
--
SonnyE


(I suggest viewed in full screen)

Hopefully some of the Observatory Guys and Gals will weigh in on this.
Even when I left my mount set up, I always did a polar alignment at start up.
My logic was that things always change from night to night. Even if you negate ground vibrations, you must agree the Earth has moved in relation to the stars.
So at least a check of the PA is the first step in beginning.

--
SonnyE


(I suggest viewed in full screen)

Prepare for a belly ache...
For going on 6 years now, I've used a cover that came with a Bar-B-Que, And a 32 gallon dome. What the hell is a 32 gallon dome?
OK, you buy a cheap plastic 32 gallon trash bin, and you invert it over the top of of your Bar-B-Que covered mount. 6 years ago, my 32 gallon dome cost me $9.95 USD. The unused BBQ cover was free.
I always brought in my telescope/imaging rig.

I currently use my 32 gallon dome, and BBQ cover, over my HD tripod. But since I was able to configure my new Losmandy into chunks to make it easy to move out and back in, I leave my HD tripod set and aligned North so my equipment lands nearly Polar Aligned night after night. But I put the BBQ cover over it, then wrap a painters tarp around to shade the legs and elevation knobs from the sun. I have my tripod setting on my 12x6x1 inch redwood elevator planks that keep the bottoms off the concrete and brick in my observation area.

I have considered upgrading to a 44 gallon dome. But my 6 year old dome is doing fine as it is. So I'd like to get my money's worth out of the investment.

Exit stage right...
--
SonnyE


(I suggest viewed in full screen)

Hi everybody,

We have installed one month ago a telescope in an remote observatory, before this we haven?t got any problem with the mount (Losdmandy G11 Gemini-1), but after we installed in the observatory it came the problems.

we made the aligment and everthing was going fine, but after a while (8-6 hours) the mount lost the aligment, we change the Gemini, we replace the battery, we made a new realigment, the system works one or two days an again it lost the aligment.

Even we try to charge the aligment and the Gemini doesn?t permit. Is like hand control suddendly collapsed!!

We have 12v that feed all the mount,camera, rotator….,it works by a relay (Dragonfly), we connected the computer and the power supply by the dragonfly.

We are confused with the problem of the Gemini, which could be the problem, it supposed the 12V output is fine.

Are we loosing something with the Gemini that whwn we switch off the mount the Gemini loose the aligment???

The mount is "lost", is something rlated with the warm, or cold star. The parameters of aligment are in Gemini, but I think that we made something wrong when we swith off that cause that when we restarted the mount gest "lost" and ask for a realigment.

Strange as CdC is all I ever use with Gemini Ii and have never had issues? No special configuration apart from setting location and time the same as Gemini (I set to UTC with no offset).

Keith

Hi again Tony

before you reset your limits (your other post), I suggest you get this figured out.

I tried CDC and was able to connect but it also appeared it treated my losmandy backwards. I connected via stellarium and sky safari and they were fine, so it seems there's some setting in CDC.

I'm not sure why that is, but i would get this straightened out. it may fix your DEC coordinates/setting Limits question


Brian

--

Hi all,
New member here.? I have settled on the GM811G with HD tripod and have a few questions.? In no particular order, they are:
1. I plan to autoguide with my ASI120mm camera to the mount's ST4 port via laptop or the the ASIAIR Pro, but am not familiar with the TTL connection.? What is the difference between ST4 and TTL and is there an adapter needed here?
2. Can my Polemaster function with the mount (assuming there is an adapter)?
3. Are any components sourced from China?
4. Will the HD mount will ride on my Scope Buggy without modification?? I did not note any dimensional information on the website.
5. The Losmandy website indicates that this mount is in stock.? I will want some accessories such as the RA Ext Kit and GPS.? If one placed an order today, approx how long for shipment?

I am sure there will be more.? Your indulgence is appreciated.

I need to change my safety limits as the telescope does not slew to a given point in Carte du Ciel given the "Invalid DEC coordinate" error which I understand is a gemini ascot error message. There is a Losmandy video on how to change the values but its not clear what I would change them to.
Suggestions?

Marc

On Thu, Oct 1, 2020 at 06:29 AM, Gregory Latiak wrote:

I am using Superlube in my GM-8, works great. But I also have a can of industrial moly grease that I used to use on the brakes in a high performance sports sedan many years ago. It seems to plate itself on any metal surface -- was curious if this might be usable as well?

Thanks,

Greg Latiak

I use the MP50 on the spur gear. I find it keeps the worm wet and has a nice consistency. But nowhere else.

I found motorbike covers from ebay come in different sizes and shapes and work a treat. Telegizmo is niche and overpriced BBQ covers IMHO. These days every accessory that has the word "astro" or "telescope" has an insane mark up. Another tip if you're looking for cylindrical bags to carry your tubes look no further than drum sets bags. They're good quality, heavy duty and great padded carry bags.

It came from ebay, basically a battery box with a wire and flashing led, I didn't see a non flashing version but sure there would be.

I could only see the video when i .logged in to the forums

that looks like it would work. is there a non-flashing version? i feel like i might get seizures looking at that for too long!