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Hello group, When I boot up, it shows DEC motor stalled, but the DEC axis very slowly rotates but fast enough to easily see without pressing any buttons. Pressing any buttons at this point does

Thanks, Bill. This one I can read :) PE is kind of high, around 20 arcseconds peak-to-peak. Most Losmandy mounts I’ve seen have PE of around 10 arcsecs p2p, often less. What concerns me are the

I resent the image to your email, bypassing Google. Hopefully that will be readable. As to the slipping. 1. Yes, I have checked the coupler 2. Clutches are tightish. I can make them move with come

It's nearly impossible to read the PE chart due to small scale. What I was interested in seeing was any sudden jumps, and especially those that don't repeat with the worm cycle (which requires more

Paul (and others), I’ve attached a screenshot showing the unguided results over about 18 minutes. You can sort of see the periodic error which I think is 478 seconds (about 8 minutes) for the GM8.

Paul, Thanks for the advise and the links. I'm going to follow those instructions & hopefully everything will work okay. Ron

I don't know about TheSky6 and Nina, but my Raspberry Pi running Ekos connects to the Gemini II through the USB-b port.? Ekos uses serial connections for their drivers, in this case over USB, so the

David, Good to hear from you.? I am also a dedicated MI-250 user. I got mine from the original owner back in 2005, and it has performed perfectly ever since. My Gemini I that just got fried was the

Paul, I should be able to get an unguided log tonight. Yes, Gemini 1. The autoguider is connected to the main camera, which in turn is connected to a Raspberry Pi 4. The RPi4 also has a USB cable

So the calibration looks good. How about an unguided tracking log over a few worm cycles? This is with Gemini-1, correct? How is your autoguider connected to Gemini? Regards, -Paul

Paul, I have calibrated and re-calibrated many, many times. I have also tried a variety of different pulse lengths for calibration. If calibration is off then there must be some other fundamental

The easiest way to connect to a Gemini 2 using Ethernet directly to a PC Ethernet port is to use Ethernet crossover cable or IME a crossover adapter with a standard CAT5/6 cable of appropriate length.

Hi Bill, it looks like to me that the autoguider isn't calibrated properly. Corrections are often insufficient in RA, and sometimes overshoot a quick jump. The first step is to measure your periodic

Hi Ron, First, Serial/RS232 is fully supported by Gemini-2, not sure why you say it isn't. Ethernet is definitely a better way to go, if you want to get the best out of the PC->Gemini link. Is your PC

Group, I have been trying to use a 14 year old GM8 mount (non-spring loaded worms; non-tucked motors) for variable star analysis. For this analysis, it is not essential that guiding is perfect, but

It might work as you connected them, if one or both ports are auto switching, More than likely, you will need a hub or switch connected between the two. Another possibility is to use a "cross-over"

Hello group, Recently my trusty old Gemini I shot craps after 19 yrs of faithful service. I had to upgrade to the new Gemini 2 and Hand Controller. As you know, the old Gemini I connected to a PC via

Sorry me typing not thinking No a 15 pin VGA will not work as it is 3 rows DB15.?? You need two rows DB15.?? You can buy longer versions of what you have but try to get 2m at least.??? Also

Brendan, Are you saying that a standard VGA cable will work? I have several of those laying around. I don’t understand your comment about “Aldo”. Is that a particular manufacturer? Or is this a

Yes I replaced one for user recently. ?Same issue. ?But they fail near the pins so doing a jumper is not so easy. ? ?DB15 Male /Female 2m or a little more. ? ?Mouser or Digikey. ? There are