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492 units can use 12-18v DC power input you can use the current Losmandy AC/DC 15v power supply, for example Brian

encoder, but it's either wrong or inaccurate. or missing i.e., "still waiting for it to hit that encoder mark"

Thanks, Paul! A you say: a missing cable (like disconnecting it) the gemini says "motor stalled". And that is what I observe. A runaway motor would have to be caused by these: 1. bad optical encoder

Thankfully, that really is how it is programmed. When Gemini doesn't sense movement after applying maximum power to the motor, it will stall pretty quickly. That's what the stall message from Gemini

?? -- Brian Brian Valente portfolio brianvalentephotography.com <http://brianvalentephotography.com>

It was set to cold boot. ?I changed it to “Prompt if not Started”. ?Thanks

Well, not just a diagram, but that process (as shown in the diagram) to isolate where is the root cause :) [email protected]> wrote: -- Brian Brian Valente portfolio brianvalentephotography.com

Yes, that is why we have the troubleshooting diagram, to determine where that may be FYI it does happen in the Gemini, but that's pretty rare -- Brian Brian Valente portfolio

Yes, though the lose connection could be on the circuit board in the motor assembly (or the connector or the cable or the circuit board of the Gemini-2).

Thanks Henk, I can definitely go a lot longer than 10 secs autoguiding if there is no wind. For high altitude objects, I can usually get an RMS of between 0.8 and 1” for the 12” Newtonian with no

I think it's more likely a loose connection if an encoder was bad, it would happen every time. The encoders won't "lose signal", but rather than encoder disk is marred in some way -- Brian Brian

Hi Edward you might doublecheck the startup mode is "Ask if possible" if you have it on autostart in Cold, Warm, etc. it will startup without asking -- Brian Brian Valente portfolio

Hi, I have my gm811g mount constantly powered up and in a parked position. ?Recently I lost power and when the power came back, my mount was no longer parked. ?Is this normal behavior or should the

Ah, yes. Can see where that would work. Have PM face away from clamp, instead of over. Thanks!

Nice images considering the wind.? I have a 12" F/4 Newt astrograph too and am currently working on getting the autoguiding under control.? Wind is definitely an issue, I had 1.5" RMS last time I

That is true....if the Gemini does not sense the motor optical encoder wheel move it will keep sending motor power to see if it can move it...and the motor will appear to run away. It could have been

Ok, contacted and was sent troubleshooting tips.? Either cable, connectors, or motor. The challenge is that I haven't reproduced yet.? Last night I did many many slews while giving the cables some

Ok, seeing mixed messages regarding Start commands here on Losmandy User Site and what is printed in Gemini manual. What I have read here on this users group is: Warm Start:? For permanent locations

Ummmm. The Gemini units are spec'd to allow from 12V to 18V for higher torque. But the 492 units are not. They use 12V stepper motors only. The older Hurst motors are stamped 12V on them. I have the

I've been playing around with my ZWO 071 Pro cooled CMOS camera, and have been experimenting with stacking many short sub exposures (only 10 seconds). I used high gain on the camera (240) with my