Keyboard Shortcuts
Likes
- Losmandy_users
- Messages
Search
Re: Clutch update
>>>
Right now I'm thinking that just cleaning the pads has made a world of difference. that doesn't surprise me, good news >>>I don't have a way to ensure that the nut is the same tightness, other than "hmm that seems about the same". if you are continuing this into the future, maybe a couple pieces of tape, one on the clutch knob and one on the axis, where at least you can line up the tape points. Figuring out the same # of tightening revolutions should be easier On Tue, Sep 29, 2020 at 3:36 PM Jamie Amendolagine <jamie.amendolagine@...> wrote: I don't have a way to ensure that the nut is the same tightness, other than "hmm that seems about the same". I was thinking of 3d printing a part that I could clamp to the tightening nut and attach the torque wrench to that. I would of course be careful not to over-tighten the nut -- my whole thought here is that too much pressure on the bearing may cause it to roll unevenly.? --
Brian? Brian Valente portfolio |
Re: PHD2/G11T connection problems
开云体育
I tried an Ethernet cable, and it didn't work. I re-tried the USB port, but this time I did a mount setup which a got with the little black button on the left of connect/disconnect button. I put in some numbers, tried connecting again and it worked with the
USB port. So far so good. Thanks?for the reply!
Jeff From: [email protected] <[email protected]> on behalf of Larry Adams <adamsll@...>
Sent: Tuesday, September 29, 2020 6:11 PM To: [email protected] <[email protected]> Subject: Re: [Losmandy_users_io] PHD2/G11T connection problems ?
I would suggest using Ethernet. All the setup instructions are on the Gemini-2.com website. Worked for me first try.
|
Re: PHD2/G11T connection problems
开云体育
Are you using PHD2 with the ethernet port or something else? From: [email protected] <[email protected]> on behalf of Larry Adams <adamsll@...>
Sent: Tuesday, September 29, 2020 6:11 PM To: [email protected] <[email protected]> Subject: Re: [Losmandy_users_io] PHD2/G11T connection problems ?
I would suggest using Ethernet. All the setup instructions are on the Gemini-2.com website. Worked for me first try.
|
PHD2/G11T connection problems
Hi everybody. I have been using my new G11t for about three weeks, but I haven’t tried autoguiding with it yet. Today I plugged in my mount to my PC using the USB port on the Gemini box. I get a message telling me that the system was trying to connect to the mount but it never does. I did download the Gemini mount ASCOM app, previously. At this point I have no idea what I need to do to get the computer and mount paired up. Any help would be really appreciated.
Jeff |
Re: Clutch update
I don't have a way to ensure that the nut is the same tightness, other than "hmm that seems about the same". I was thinking of 3d printing a part that I could clamp to the tightening nut and attach the torque wrench to that. I would of course be careful not to over-tighten the nut -- my whole thought here is that too much pressure on the bearing may cause it to roll unevenly.?
Right now I'm thinking that just cleaning the pads has made a world of difference. I'll take the scope out tonight and see how it goes. If my guiding spikes are gone and I can get those great images again I'll probably put this stuff on the back burner.? There's only so many hours in a day to obsess over this after all! Jamie |
Re: Options for software control of Gemini 1 (G11)
I use Ekos/Kstars from Indilib.org too and am very happy with it.? It integrates a whole bunch of functionality including dome control of your observatory, planetarium control, autoguiding, alignment, plate solving, multiple configurations.? It is a one stop shop free of charge, and can even run on a Pi 2B (client and server) controlled remotely.? If you need to transfer images and if power is no issue you may want to get a Pi 4B.? It also has an OnStep driver in case you want to build your own Goto controller, which I did (and happy about the outcome).? But Ekos supports the Gemini too IIRC.
|
Re: GM8 lubrication
Lithium is the worst grease for the mount, it gets hot and drips and runs, it gets cold and stiff , it also dries up and leaves hard clay behind. Buy a true synthetic based grease with Teflon, I like SuperLube with Teflon, it is the best stuff out there IMO and has the lab tests to prove it. Here in the USA Amazon has tubs of the stuff for $10 and is lasts forever. I have been giving blobs to my friends with Losmandy mounts in ziplocks and have rebuilt about a dozen friends Losmandy G11 and GM8 mounts using that can and I still have 2/3 of it left.?
-- Chip Louie Chief Daydreamer Imagination Hardware? ? ?Astropheric Weather Forecast - South Pasadena, CA? |
Re: Clutch update
ah okay thanks how do you ensure you are hand tightening the same amount? On Tue, Sep 29, 2020 at 11:16 AM Jamie Amendolagine <jamie.amendolagine@...> wrote:
--
Brian? Brian Valente portfolio |
Re: Clutch update
开云体育Wow! That’s scientific! ? I had bought the Losmandy nonslip clutches, which seemed to achieve the desired outcome. However, while recently doing a bit of maintenance I seemed to have misplaced one of the clutch pads. Chief suspect is my wife’s dog, which has probably hidden the clutch pad in its stash somewhere. Faced with long delivery delays during the COVID-19 pandemic, I decided to improvise. My wife suggested cutting out the shape of the clutch pad from a pastry rolling mat. I did and it seems to work quite well, although it’s only on the Dec axis. The dog has resumed its status of being “our” dog. ? ? Greg ? From: [email protected] <[email protected]>
On Behalf Of Jamie Amendolagine
Sent: Tuesday, 29 September 2020 5:46 AM To: [email protected] Subject: Re: [Losmandy_users_io] Clutch update ? I'm not tightening. I'm measuring how much torque it takes to turn the shaft before and after cleaning the clutch disk. After cleaning the disk the shaft is roughly twice as hard to turn when lightly tightened by hand. In each case I only tighten by hand.? |
Re: Clutch update
Hi Jamie please avoid tightening with any tools - you really should not need to do that.? it sounds like you more need to just clean the clutch disks, which is a good idea from your description On Mon, Sep 28, 2020 at 10:28 AM Jamie Amendolagine <jamie.amendolagine@...> wrote: Thought I'd give an update.? --
Brian? Brian Valente portfolio |
Re: Clutch update
Thought I'd give an update.?
So I got the alternative clutches, and tried one in the RA. Hard to tell if it's better or worse since I accidentally dabbed some lube on the pad, and it's not plastic, so I don't know if I was able to clean it -- Doh!? Either way I was able to guide pretty well last night. I think that I need to tighten the RA more with the different clutch (lubricated clutch that is...).? I just took a look at the DEC clutch, and lube has definitely gotten to that one without my help. I'll clean it up and see how that works. I also got a 1/4" torque wrench, just to see if I can detect any better or worse guiding with different tightness of the clutch.? Just finished cleaning it up, and wow, what a difference. With a fairly lightly tightened clutch it used to take about 25 inch lb to start it turning, then about 12 inch lb to maintain a motion. Now with it not as tight, it takes about 20 inch lb to start it, and 20 inch lb to maintain a motion. Let's see if it makes a difference in guiding.? Jamie Jamie |
Re: Losmandy OPW Assembly
Another thing you might want to look into is the position of the plate holding the worm block. On my mount it is threaded into the RA body by 3 screws. There is a bit of play with the centering which affects the distance and orientation of the OPW in reference to the spur gear edge, hence the worm possible meshing range. If the gearbox side of the worm is a little tight you might want to move that plate slightly off center towards the OPW. That will give you a bit more gap. Not too much forward or the maximum meshing will still leave you with some backlash.
|
Re: GM8 lubrication
I guess I can give you my example of why we shouldn’t ?use it.?
toggle quoted message
Show quoted text
My mount had the same grease for 10 years. It was the naval lithium grease someone recommended years ago. This is the result. I had grease in every single piece on both axes Guilherme? On Sunday, September 27, 2020, Brian Valente <bvalente@...> wrote:
|
Re: GM8 lubrication
Hi Claudio factory
specifically
recommends against lithium grease. I forget the exact reason, but i recall talking with Scott that it ends up seizing up after a few years Brian On Sun, Sep 27, 2020 at 12:09 PM Schinazi Claudio <claudio.schinazi@...> wrote: Hi, --
Brian? Brian Valente portfolio |