Re: G11 Polar Alignment hole
A round hole is drilled through a round shaft makes an appearance of an egg shaped hole around the surface of the round shaft. Nels
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Re: G11 Polar Alignment hole
I have the same problem with my G11. the hole in the DEC axis shaft is only aligned with the hole in the DEC housing when I rotate the DEC by approximately 12 degrees. I'm using a Polar Master to align my mount so it does not effect my polar alignment. Peter 2017-10-07 4:36 GMT+02:00 f4chief73@... [Losmandy_users] < Losmandy_users@...>:
Well, after my lame comment i realized after I connected the Gemini 2
controller, and ran the servo's with the cap, did I realize when the scope
did it's thing the dec shaft is turning inside the outer mount housing
giving that effect. Duh, disregard my post...
Beachbum53
[Non-text portions of this message have been removed]
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Re: G11 Polar Alignment hole
Well, after my lame comment i realized after I connected the Gemini 2 controller, and ran the servo's with the cap, did I realize when the scope did it's thing the dec shaft is turning inside the outer mount housing giving that effect. Duh, disregard my post...
Beachbum53
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Re: G11 Polar Alignment hole
RB,
If you are saying the threads in the black RA clutch? knob are not round and the polar scope opening is also not round this is not likely because you probably could not use the knob to adjust the clutch pressure. So I think you are talking about the actual opening bored through the DEC axis axle shaft which is exposed when the caps are removed.?If you use a caliper or steel rule I think you might find the opening in the DEC axle is probably not egg shaped but round, this is probably a illusion given by the hole having been bored perpendicularly across a round axle shaft. Additionally the opening in the DEC axle is not intended for the polar scope to physically pass through but allows the polar scope optics an unobstructed view on the RA axis of the mount for polar alignment on the NCP. I hope this helps.
Chip??
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Hi,
The serial numbers for G11 and GM8s are found under the round base of the mount head.?
Chip
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Where can I locate the serial number on the Losmandy mount. I'm trying to register this. Thank You
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Update: I believe that the problem is solved. It appears that it was a faulty network cable. Because of your comments, I had a lot of options to consider, now and in the future with other problems. Thanks to you, I have examined for the first time my safety limits and realzed that Gemini 2 default limits are way off from what I need for my telescope and camera,. Man, am I ever grateful for clutches.
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Re: G11 Polar Alignment hole
Mine don’t appear egg-shaped, so I’m not sure what that’s about either. ? ? ? Thanks ? Brian ? ? Brian Valente Brianvalentephotography.com ?
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From: Losmandy_users@... [mailto:Losmandy_users@...]
Sent: Thursday, October 5, 2017 7:20 PM
To: Losmandy_users@...
Subject: Re: [Losmandy_users] Re: G11 Polar Alignment hole? ? Very interesting... and puzzling.? My CG11 has round holes up the RA axis, but (as another owner just wrote) the holes through the counterweight shaft are not lined up with the RA axis at the CWD position.... it requires a slight rotation of DEC from CWD to get the polar scope bore-sight hole to line up.? ?But the holes and RA axis bore are not egg-shaped.?? I can't imagine what the egg-shaped hole could be from.... normally machine-shop equipment does not make such holes!? ? Please post a photo of that in the group's Files sections... then let us know the path to that photo... I'd call Losmandy and ask about that (better if you have your mount's serial number if you can get to that).?? ? On Thu, Oct 5, 2017 at 7:07 PM, f4chief73@... [Losmandy_users] <Losmandy_users@...> wrote: ? The Polar scope has one black cap, and one silver knurled plug covering the mounting hole for the scope.
Take off those two caps and the hole is not true. It's egg shaped not round... I really don't need the Polar scope, but if a person did, it would never fit in that egg shaped hole. I have a photo of it, but don't know how to post it here. That's the best I can explain it. It doesn't affect the scope performance, but I was just wondering why it was like this.
RB
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Re: G11 Polar Alignment hole
Very interesting... and puzzling.? My CG11 has round holes up the RA axis, but (as another owner just wrote) the holes through the counterweight shaft are not lined up with the RA axis at the CWD position.... it requires a slight rotation of DEC from CWD to get the polar scope bore-sight hole to line up.? ?But the holes and RA axis bore are not egg-shaped.??
I can't imagine what the egg-shaped hole could be from.... normally machine-shop equipment does not make such holes!? ?
Please post a photo of that in the group's Files sections... then let us know the path to that photo... I'd call Losmandy and ask about that (better if you have your mount's serial number if you can get to that).??
Best, Michael
On Thu, Oct 5, 2017 at 7:07 PM, f4chief73@... [Losmandy_users] <Losmandy_users@...> wrote:
?
The Polar scope has one black cap, and one silver knurled plug covering the mounting hole for the scope.
Take off those two caps and the hole is not true. It's egg shaped not round... I really don't need the Polar scope, but if a person did, it would never fit in that egg shaped hole. I have a photo of it, but don't know how to post it here. That's the best I can explain it. It doesn't affect the scope performance, but I was just wondering why it was like this.
RB
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Re: G11 Polar Alignment hole
The Polar scope has one black cap, and one silver knurled plug covering the mounting hole for the scope.
Take off those two caps and the hole is not true. It's egg shaped not round... I really don't need the Polar scope, but if a person did, it would never fit in that egg shaped hole. I have a photo of it, but don't know how to post it here. That's the best I can explain it. It doesn't affect the scope performance, but I was just wondering why it was like this.
RB
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Re: Imaging west of the meridian - suggestions.
I would not expect any trouble.? Just be sure to set your western limit so in case of unattended operation, your scope will not crash into your mount.??
Best, Michael?
On Oct 5, 2017 16:16, " f@... [Losmandy_users]" < Losmandy_users@...> wrote:
?
Any suggestions for imaging on the west side of the meridian? Things to look out for? Any recommended mods for my G-11?
For years I have used my G-11 to image east of the meridian to about 1-1/2 hours west of the meridian. I have trees and other obstructions so going any further west and/or meridian flips were never needed. Also, as a result, I was always able to keep the east (counterweight) side heavy.
Fast forward to next year. I will be moving my observatory to a site a few miles SW of Cody, WY. So Cody's light dome will be in the north east (which is the azimuth where I start my night long runs today), however to the south and west there is just back sky where the Milkyway runs down into the horizon. That is where I intend to image after the move... So, my imaging runs will most likely start ≈1-1/2 hours east of the meridian and end just above the western horizon.
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Imaging west of the meridian - suggestions.
Any suggestions for imaging on the west side of the meridian? Things to look out for? Any recommended mods for my G-11? For years I have used my G-11 to image east of the meridian to about 1-1/2 hours west of the meridian. I have trees and other obstructions so going any further west and/or meridian flips were never needed. Also, as a result, I was always able to keep the east (counterweight) side heavy. Fast forward to next year. I will be moving my observatory to a site a few miles SW of Cody, WY. So Cody's light dome will be in the north east (which is the azimuth where I start my night long runs today), however to the south and west there is just back sky where the Milkyway runs down into the horizon. That is where I intend to image after the move... So, my imaging runs will most likely start ≈1-1/2 hours east of the meridian and end just above the western horizon.
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Re: G11 Polar Alignment hole
AFAIK all polar scope holes in the RA axis are normally drilled with the saddle turned sideways for head clearance. At least this is how it has been on all of the GEMs I've owned anyway.?
Chip
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Re: G11 Polar Alignment hole
Anon,
Can you more clearly describe what you mean by “twisted and misaligned”.
If you mean that the scope is at an angle when the hole is completely open then that is deliberate as it ensures the scope is not hitting you on the head while using the polar scope.
Regards
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I used my scope, and the Losmandy G11 for the first time tonight. I noticed when I took the caps off of the Polar Viewing hole in the mount that the hole is not true. Looks twisted and misaligned. Is this a normal thing with these? I wouldn't think so. I have a photo of it, but not sure how to post it here.
Thanks
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Re: G11 Polar Alignment hole
That's normal. YIUBHABE to rotate the Dec to align and use the pa scope.?
Brian
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On Oct 4, 2017, at 10:04 PM, f4chief73@... [Losmandy_users] < Losmandy_users@...> wrote:
?
I used my scope, and the Losmandy G11 for the first time tonight. I noticed when I took the caps off of the Polar Viewing hole in the mount that the hole is not true. Looks twisted and misaligned. Is this a normal thing with these? I wouldn't think so. I have a photo of it, but not sure how to post it here.
Thanks
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I used my scope, and the Losmandy G11 for the first time tonight. I noticed when I took the caps off of the Polar Viewing hole in the mount that the hole is not true. Looks twisted and misaligned. Is this a normal thing with these? I wouldn't think so. I have a photo of it, but not sure how to post it here. Thanks
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Rob, all sounds good.... the rest is experimentation.??
(I think you are saying your Gemini model shows all parameters at value 0.? This is what you get with a cold boot up.? There is no reason I can think of for your Gemini to go way off kilter from that.)
Good luck!
On Oct 4, 2017 7:43 PM, " sactowriter@... [Losmandy_users]" < Losmandy_users@...> wrote:
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Thanks everyone, Wish me luck tonight. I have reinstalled the firmware--it appears that I already had the most current, but I reinstalled anyway. I went line by line through every setting in Gemini to make sure that they were all correct--to the best of my knowledge. I confirmed that there is plenty of power in the battery.?I installed the latest version of the Gemini.net ASCOM driver. I am going to reinstall SGP, just to make sure it isn't the culprit. I had one other thought that maybe the network cable between my computer and Gemini might be faulty. If what I have done so far does not solve the problem, I will try changing that.
As far as the model goes, I'm not using modeling. I have for some time been letting the plate solving software in SGP direct the mount. This is why I suspect a communication problem, though PHD2 has performed flawlessly through all of this and it uses Gemini.net also...we shall see.
What are good safety settings for the mount. I have 124degrees on the?right and 114 on? left. These give left side safety position of 1881600 and right side of 365800. The Western goto limit is 2 degrees 30minutes. This does not seem to be working, as the camera hit the mount.
I really appreciate your responses.
Rob Fink
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Thanks everyone, Wish me luck tonight. I have reinstalled the firmware--it appears that I already had the most current, but I reinstalled anyway. I went line by line through every setting in Gemini to make sure that they were all correct--to the best of my knowledge. I confirmed that there is plenty of power in the battery.?I installed the latest version of the Gemini.net ASCOM driver. I am going to reinstall SGP, just to make sure it isn't the culprit. I had one other thought that maybe the network cable between my computer and Gemini might be faulty. If what I have done so far does not solve the problem, I will try changing that.
As far as the model goes, I'm not using modeling. I have for some time been letting the plate solving software in SGP direct the mount. This is why I suspect a communication problem, though PHD2 has performed flawlessly through all of this and it uses Gemini.net also...we shall see.
What are good safety settings for the mount. I have 124degrees on the?right and 114 on? left. These give left side safety position of 1881600 and right side of 365800. The Western goto limit is 2 degrees 30minutes. This does not seem to be working, as the camera hit the mount.
I really appreciate your responses.
Rob Fink
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I’ve had a similar behavior. ? This appears to happen when I’m pointing east, and the G11 doesn’t swap the meridian on the way to parking. I go out there and the weights are 30 degrees up in the east and the scope is 30 degrees buried in the west. It hits the safety limit. Not the park position. The park request is initiated from SGP after a sequence is completed. ? Another incident: Last week while trying out a 3 hour run, a meridian auto flip was executed half way through, and a plate solve done, but then the mount went back to the west side again and hit the safety limit. ? Doug Bock
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Rob
Is this a Gemini-2, if so make sure you have the latest .
Tom H
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Hi everyone,
For two nights, I have had exactly the same thing
happen. I am taking a four plate mosaic of M31. The
first plate goes flawlessly, but when the command to
move a small distance to the next plate comes, there has
been a problem both nights. The slew takes an abnormal
amount of time but finally ends. When the plate solving
picture is taken there are star trails, indicating that
the mount is still moving. After trying to resolve it my
connecting and disconnecting the software, both nights I
have finally had to resort to parking the mount at CWD
and turning Gemini off and then back on. When I go out
to the mount it is not at exact CWD position. The RA is
off about 20 degrees.
When I correct the CWD and restart Gemini,
everything works fine for the remaining three plates,
including a meridian flip. I can find nothing binding on
the mount that might have caused this problem, but to me
that seems to be?the most likely culprit.
Does anyone have any other ideas?
Rob ?
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Michael Herman
Doug Bock