Help to identify this G11x?

[email protected] All Messages By This Member #82012
Paul Kanevsky All Messages By This Member #82013 Hi Mike, It's a fairly recent G11 with Gemini-2, along with some additional accessories. Is there something specific you're looking to find out about this mount? I see an RA extension, upgraded clutch knobs, and a polar finder in the photos. Untucked motor on RA. Post a photo of the DEC and RA worm assemblies, as there may be more differences there between models.? Regards, ? ?-Paul
[email protected] All Messages By This Member #82018 I have an opportunity to buy this locally, but do not have any experience with Losmandy mounts, other than they have a good reputation. So knowing very little about these I was just trying to identify it and figure a rough value. I've been going through various Losmandy YouTube videos on setup, erc. I just watched the Losmandy V6.x software and firmware release live cast from about March 2022.? I'm looking for my first astrophotography mount. I have a Celestron C8 and an 80mm APO triplet refractor for telescopes. I'm wondering about what kind of PEC and tracking precision I could expect from this? I did not want to get into a comparison thread, but I'm also looking at an IOptron CEM40, or ZWO AM5 Anyway thanks for any help. I just joined this group and started reading through relevant information.? Mike
[email protected] All Messages By This Member #82019 Edited What is the tucked vs untucked RA? I have read this is for better clearance around the meridian? Also what motors are these?? Are these the high torque motors, and if so what is the difference.? Thanks again, I am reading here, so hopefully this is not redundant. Mike
John Kmetz All Messages By This Member #82021 On Mon, Jan 29, 2024 at 06:32 PM, <mikelleen@...> wrote: What is the tucked vs untucked RA? I have read this is for better clearance around the meridian? Also what motors are these?? Are these the high torque motors, and if so what is the difference.? Thanks again, I am reading here, so hopefully this is not redundant. Mike This mount could be in the 10 to 20-year-old range. I think one give away is the black altitude knob which has since changed to an aluminum one with textured surface for grip. This is the same one my 1996 era G11, so not sure when it was phased out. The Gemini 2 is the latest model mini design (not the tall boy) and could have been added later with the rest of the newer accessories. In the tucked design, the motors are underneath the worm, the non-tucked stick out to the side as in the pictures. If you look under the mount base, you should be able to find the Losmandy serial number - and Tanya should be able to trace that back to the year made. 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
Paul Kanevsky All Messages By This Member #82023 On Mon, Jan 29, 2024 at 06:32 PM, <mikelleen@...> wrote: Also what motors are these?? Are these the high torque motors, and if so what is the difference.? Looks like HT motor, but a bit hard to tell from the angle. Here's what an HT motor looks like:
Chip Louie All Messages By This Member #82024 On Mon, Jan 29, 2024 at 11:42 AM, <mikelleen@...> wrote: This G11 is probably an older mount that came with the original Losmandy #492 Digital Drive system given the original 2-piece worm blocks and solid elevation knob which was original starting in 1992 and later milled out and knurling added. Another tip off for age could be the wooden tripod, if the tripod is the one I think it is these were used by AP back in the day and often sold as an alternative to the Losmandy fixed HD tripod. It probably received a full Gemini 2 upgrade kit within the last 6 or 7 years? That said this G11 has nice mix of older and newer upgrades, the split RA extension kit, later milled out thinwall tooless knobs for mouting to the tripod and elevation, captain's knobs on the clutches with the older style machining, Polar scope possibly / probably with an out of date reticle as there is not cordless illuminator but the plug is in place.? ?? There is something you need to know about ALL Losmandy GM8 and G11 mounts - unless the mount is physically damaged or modified by an idiot virtually all Losmandy GM8 and G11 mounts can be updated to meet current specs and features. The only caveats are undamaged, unmodified and that it can cost a lot to do a full update. But given the general condition in the photos and parts on this G11 the only thing you are missing are tucked in servo motors with spring loaded 1-piece worm blocks and possibly the later High Precision worms. The rest of the mount with a Gemin 2 mini and HT servos is essentially up to current specs. Just update the Gemini 2 to L6 and if you feel it is worth it the improved cable routing buy a pair of current high torque servos with side mount connectors. For imaging this is an improvement over the bottom cable connectors.? My nearly 20 year old G11 started life as a G11s with #492 Digital Drive. I updated to a full Gemini 1 upgrade kit, then added High Precision worms and added worm bearing preload using Belleville spring discs and was impressed by the low tracking error. That was followed by a Gemini 2 controller then Scott installed the then brand new tucked in servo motor upgrade and the matching 1-piece worm blocks, shortly after that Scott installed the spring loaded modification which brought my old friend fully up to modern specs. This mount is an excellent mount for imaging and typically delivers very sub 0.5" arcseconds PE when guided using D2. With the ASIAIR Plus the PE is not as good but this is due to the lack of tunability of the autoguiding in the ASIAIR Plus, the mount is fully capable of lower PE after L6 because even with the ASIAIR Plus autoguiding has improved.?? I don't know where you are but if the price is reasonable I would say buy it!? ? -- Chip Louie Chief Daydreamer Imagination Hardware? ? ?Astrospheric Weather Forecast - South Pasadena, CA?
Chip Louie All Messages By This Member #82025 On Mon, Jan 29, 2024 at 05:51 PM, Paul Kanevsky wrote: On Mon, Jan 29, 2024 at 06:32 PM, <mikelleen@...> wrote: Also what motors are these?? Are these the high torque motors, and if so what is the difference.? Looks like HT motor, but a bit hard to tell from the angle. Here's what an HT motor looks like: The servo is marked SVM HT which is the now standard High Torque.version.?? ? -- Chip Louie Chief Daydreamer Imagination Hardware? ? ?Astrospheric Weather Forecast - South Pasadena, CA?
Paul Kanevsky All Messages By This Member #82026 On Mon, Jan 29, 2024 at 09:06 PM, Chip Louie wrote: > The servo is marked SVM HT which is the now standard High Torque.version.?? ? Haha! Sure enough. I couldn’t read it on my phone, but should’ve zoomed in - it’s right there on the label! Regards, ? ?-Paul
Chip Louie All Messages By This Member #82027 On Mon, Jan 29, 2024 at 03:32 PM, <mikelleen@...> wrote: What is the tucked vs untucked RA? I have read this is for better clearance around the meridian? Also what motors are these?? Are these the high torque motors, and if so what is the difference.? Thanks again, I am reading here, so hopefully this is not redundant. Mike The tucked in servo motor upgrade changes the position of the servo motor by flipping it under the worm drive. This is achieved by adding a pair of spur gears with a 1:1 ratio. The advantage is much better clearance and reduced mechanical interference which extends the time the optical tube dwell on the same side of the pier before needing to "flip" to the other side of the pier. The tucked in servo motors also significantly reduced the chances of damaging the servo motors and makes packing up much easier as the mount is narrowed 3"-4" and now there is no vulnerable motor sticking out in the wind wo to speak.? These as posted are the original bom connector High Torque servo motors. These are the same as the current version HT servo motors but the newer version has the connector on the side for improved cable routing with the tucked in servo motor configuration.? ?? -- Chip Louie Chief Daydreamer Imagination Hardware? ? ?Astrospheric Weather Forecast - South Pasadena, CA?
John Kmetz All Messages By This Member #82028 Another age giveaway is the worm covers which are just anodized aluminum angle stock, not the intentionally machined Al parts of modern age. I would bet the worms are stainless steel, used for many years before the high precision brass worms now being used. My 1996 vintage also has a brass spindle on which the ring gears ride, with no center bearing - just metal on metal. Mine was converted to OnStep and is performing very nicely. But with all the modern day upgrades this mount should be performing as good as any leaving the factory now. 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
[email protected] All Messages By This Member #82029 Thanks all, good information! So from what I am reading, there are a couple of things to bring this mount up to date: Update, to controller version 6.x. Which I understand includes sending the G2 in for update of the servo controller chips. Update to?high precision brass worms. How do I check to see what worm is in there? Maybe just point me to an appropriate thread. Spring loaded gear drive? Tucked in servo motors. Can I use the existing HT motors for this? Anything else? What would this roughly cost to update? Thanks for all the help! Mike
John Kmetz All Messages By This Member #82030 On Tue, Jan 30, 2024 at 01:33 AM, <mikelleen@...> wrote: Thanks all, good information! So from what I am reading, there are a couple of things to bring this mount up to date: Update, to controller version 6.x. Which I understand includes sending the G2 in for update of the servo controller chips. Update to?high precision brass worms. How do I check to see what worm is in there? Maybe just point me to an appropriate thread. Spring loaded gear drive? Tucked in servo motors. Can I use the existing HT motors for this? Anything else? What would this roughly cost to update? Hi Mike, It looks like someone did a bunch of updates to this mount already, so you may want to ask about the history of what was done inside if anything. Were the bearings replaced or was it relubed at any time? If you pull off the worm covers you could see if the worms are new brass or the old stainless. But the older ones are not necessarily bad. If the seller has some guiding data that would be helpful. Changing to tucked motors won't mean better guiding necessarily. Also ask if the gearboxes were replaced which is one thing that will wear our faster than some other components. If anything, I would replace the wooden tripod with a modern Losmandy one or mate the MAL tripod head with a Meade heavy duty field tripod.? But spending a night out and getting some PHD2 guiding data may tell you what might need upgrading. I assume you will be using the mount for astrophotography and not visual. Mount performance is what you want not just the latest upgrades.? 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
Chip Louie All Messages By This Member #82031 On Mon, Jan 29, 2024 at 10:33 PM, <mikelleen@...> wrote: Thanks all, good information! So from what I am reading, there are a couple of things to bring this mount up to date: Update, to controller version 6.x. Which I understand includes sending the G2 in for update of the servo controller chips. Update to?high precision brass worms. How do I check to see what worm is in there? Maybe just point me to an appropriate thread. Spring loaded gear drive? Tucked in servo motors. Can I use the existing HT motors for this? Anything else? What would this roughly cost to update? Thanks for all the help! Mike Mike, The firmware update to L6 can easily be done at home. All you need is Internet access, the GFU program and a PIC chip programer and the code to drop in the PIC chips.? The HP worms are a distinctive brass color and easy to access on this style drive, just loosen, NOT remove the two small set screws on the cover to access.? The tucked motors and spring loaded worm can only be done by Losmandy. Call and ask what the cost and time frame are. With the the HP worms and Gemini 2 mini and HT servos your mount is ready to upgrade to this last spec. It's just a matter of time and money.? -- Chip Louie Chief Daydreamer Imagination Hardware? ? ?Astrospheric Weather Forecast - South Pasadena, CA?
George Cushing All Messages By This Member #82032 Tucked motors can be . With a HD tripod $1900-2400.?

Previous Topic Next Topic

开云体育

Help to identify this G11x?