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Re: C11 users....what photographic results are you getting?
On Tue, Feb 20, 2024 at 03:56 PM, BBasiaga wrote:
Well I tried for the first time Sunday.? ?Mostly battled getting the EAF set up, a didn't clearly win.? But I got close to focus.? Amd reading up inthink I need a big step size increase in my EAF routine to improve things.? ? That'll be for the next night.?Hi Brian, I gave up on knob focusing with my C925 which was not very accurate. Plus, you have to leave the mirror locks off which invites mirror flop, especially during flips. After I changed to a Moonlite CHL inline focuser my focusing greatly improved - the mirrors stay locked, and the steps used are fine and accurate. Definitely worth the money for the quality improvement. Your guiding could be from sky conditions or a focus issue. It's hard to say without more info. Good luck. John ? -- _____________________________________________________________________________________________________________________________________________________________________________ Losmandy G11G2 on pier; refurbed Losmandy G11 with OnStep controller; SkyShed design roll-off observatory; ZWO ASI2600MM-P; ZWO ASI071MC; Sky-Watcher Esprit 100 ED with field flattener; Celestron C925 Edge HD with 0.7XFR, William Optics Zenithstar 61 APO; PHD2, Sequence Generator Pro and PixInsight user |
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Re: C11 users....what photographic results are you getting?
Brian I've used the eaf and it has some backlash. My experience is to go out of focus it then only drive it one way until you get close. Reduce step size and sneak up on focus. If you overshoot, start over. Chuck On Tuesday, February 20, 2024 at 12:56:17 PM PST, BBasiaga via groups.io <bbasiaga@...> wrote: Well I tried for the first time Sunday.? ?Mostly battled getting the EAF set up, a didn't clearly win.? But I got close to focus.? Amd reading up inthink I need a big step size increase in my EAF routine to improve things.? ? That'll be for the next night.? I'm sure I need to collimate as well.? And guiding was horrendous.? ?Almost 2 arc-s rms.? Not a clue what that is about.? ?Mount normally guides 0.6-0.8, so could have been balance or aggressiveness or min move or something.? ? Tackle that next time hopefully as well.? Brian |
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Re: C11 users....what photographic results are you getting?
Well I tried for the first time Sunday.? ?Mostly battled getting the EAF set up, a didn't clearly win.? But I got close to focus.? Amd reading up inthink I need a big step size increase in my EAF routine to improve things.? ? That'll be for the next night.?
I'm sure I need to collimate as well.? And guiding was horrendous.? ?Almost 2 arc-s rms.? Not a clue what that is about.? ?Mount normally guides 0.6-0.8, so could have been balance or aggressiveness or min move or something.? ? Tackle that next time hopefully as well.? Brian |
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Re: Greasy Gear Covers
I had some black oxide set screws in my screw drawer this whole time. I am glad I had not ordered any yet. The factory screws were hard to get out as the allen hole was a bit too big, but they are all out and replaced. I used blue loctite. I moved the gears in a tiny bit that were rubbing the covers. If this was intentional, I can always move them out again. I left all the grease in place for this reason. I set the spring loading a bit tight and sure enough I had the RA Stall warning. I simply backed off the spring. Now on to some in house exercises.
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Re: Greasy Gear Covers
As I was attempting to move the gears in, the allen wrench I was using was stripping out in the set screw. Also, there is some in and out play on the shaft which I guess is what is causing it to rub the cover. I am not really sure what size allen wrench is supposed to fit in these as all 4 of the set screws seem to fit the wrench differently. Some are tight and some are loose. I am going to order some new set screws from McMaster Carr, but I am trying to decide on stainless or black oxide alloy. I see the new 5-40 1/8" screws use a 1/16th wrench but none of the ones I have including the one that came with the G11 fit, they are too big. The next size down, .005 is too loose. I did manage to get the stripped one out by gluing in the wrench. That is how I conformed that it is a 5-40. I will need new grease as most is off now from the few times I have made adjustments to the worm. I don't remember what kind of grease they use for assembly, the gray stuff, but the stuff they have on the website is not gray and it is out of stock.
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Re: Greasy Gear Covers
Mine don’t rub against the covers but they are covered in grease around the periphery. The grease is somewhat normal as the gears push some of it away when meshing together. Rubbing against the cover can only add to wear and tear if you ask me but thankfully it’s an easy fix, just loosen the grub screws slightly and push the gear just enough to line it up with the other one, then retighten the grub screws.
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Re: Gemini/NINA spreadsheet
Can you provide a link to this spreadsheet - I don't know where it is. Thanks. Mike On Fri, Feb 16, 2024 at 10:19?PM Edward Plumer <eplumer@...> wrote:
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Re: Mature G11 repair
开云体育Many thanks to all! Given all the potential issues, I'm in contact with Michael Herman - thanks for the suggestion, John. Will update when we're all done - and operational! Thanks! Dale On 2/16/24 3:56 AM, John Kmetz wrote:
On Thu, Feb 15, 2024 at 06:17 PM, DaleN wrote: |
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Re: Mature G11 repair
开云体育No problem.. Also, for anyone who cares, once I can find it (in storage or in an as yet unopened moving box), I will have a MA Adapter fr sale if anyone needs one.. Come the decent (expected) weather middle of next week, I’ll start looking much more seriously for all my astro stuff.. Derek ? From: [email protected] [mailto:[email protected]] On Behalf Of DaleN
Sent: Thursday, February 15, 2024 8:45 PM To: [email protected] Subject: Re: [Losmandy_users_io] Mature G11 repair ? Thanks Derek. I've replied separately to you. Thanks for the GFT and MA adapter testing offer - I have a Losmandy LW tripod from my GM811G for testing currently. Dale On 2/15/24 8:15 PM, Derek C Breit wrote:
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Re: Mature G11 repair
On Thu, Feb 15, 2024 at 06:17 PM, DaleN wrote:
My club has recently obtained a maybe 2010 era? G11 with Gemini-1 controller, untucked servos, OPW, and pretty gummed up bearings and axis shafts.Dale, Sounds like your mount needs a trip to Micheal Herman in CA. If the mount was that gummed up, the running on frozen bearings probably led to flat spots or gouged thrust bearing washers. Personally, I would replace all the bearings with new ones, including the internal needle bearings - not just do a relube. You may need new gearboxes as well as these plastic geared parts could be worn out. Michael has replacement non-slip clutch pads which you will are a resistant to slippage. I refurbed a 1996 mount myself which I now use successfully for AP purposes. Please let me know if you need further info. John ? -- _____________________________________________________________________________________________________________________________________________________________________________ Losmandy G11G2 on pier; refurbed Losmandy G11 with OnStep controller; SkyShed design roll-off observatory; ZWO ASI2600MM-P; ZWO ASI071MC; Sky-Watcher Esprit 100 ED with field flattener; Celestron C925 Edge HD with 0.7XFR, William Optics Zenithstar 61 APO; PHD2, Sequence Generator Pro and PixInsight user |
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Re: Mature G11 repair
开云体育Thanks Derek. I've replied separately to you. Thanks for the GFT and MA adapter testing offer - I have a
Losmandy LW tripod from my GM811G for testing currently. Dale On 2/15/24 8:15 PM, Derek C Breit
wrote:
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Re: Mature G11 repair
开云体育Dale.. Check your Junk mail folder, as I’ve replied to you a couple times.. If you’ve answered, I may not get it for awhile as I am streaming Sharks Hockey.. Additionally, if you want to borrow my Meade GFT and MA Adapter to test your mount, that could be arranged.. Derek ? From: [email protected] [mailto:[email protected]] On Behalf Of Jim Waters
Sent: Thursday, February 15, 2024 5:46 PM To: [email protected] Subject: Re: [Losmandy_users_io] Mature G11 repair ? Have you tested, actually used the mount yet? |
Paul Kanevsky
Edward Plumer