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Probably best to simply measure it with ruler or calipers. If original bolts, SAE units rather than metric. Measure flat-to-flat across the Allen hexagonal. Dale

Hello All, I recently joined here and have been gathering and learning a lot. I have been fortunate to acquire a GM8 with the 492 direct drive unit and an extension installed between the tripod and

Hmm, even new mounts get the blues. You sound like an experienced imager and have successfully used much of the same gear across different mounts and the DEC issue has remained with the Losmandy

Thanks Brendan. I will look into doing that - much better to keep everything within the same socket! Cheers Nick

Also note that all of the gear involved beyond the mount has been used on five other mounts by three other manufacturers without these issues. The AM5 and Phd2 gave me errors below 0.20! For hours. I

The guidescope is mounted to a rail bolted to the rings. Seems very solid. I have checked everything repeatedly. I have tried three guidescopes and three guide cameras. I have taken everything down

Might be the gearbox has the older heat welded rivets and they are broken or loose? Of these are the gearboxes with screws they can be tightened unless the are stripped. In any case you don't want the

Hey Ed, For comparison, my DEC backlash (G11G with 40lb 10" newt) is generally between 1500 and 3300 as measured by PHD2 guiding assistant. I believe you mentioned that it was a fairly new mount. If

Using Phd2's guide assistant last night, it appears that my mount's dec backlash is fairly bad? I am contacting Losmandy as this mount is only a week old. Please let me know if this is simply normal

Hi Dave, As Brendan said, we may need some photos or even a video of what and how it's loose. If the screws are tight, the motor shouldn't wobble (don't over tighten these screws, as you can strip

I just want to check. ?You said screws tight! ?When the Gearbox threads wear the screws font tighten properly so you have me Intrigued. What ver Gemini and G11 is this? Some of the older original

Trying again tonight and having the same trouble using Nina and phd2. Have checked everything I think that matters, including the guide rate on the mount and all the particulars about the camera and

David see here /g/Gemini_users/topic/106579364#msg33745 The motor screws into Plastic gearbox lands and these wear out.?? You maybe able to plastic weld it (or even some sort of

Hi Nick...looks good...one thing I'd do... cut the autoguider alarm cct on pin 1 of the Losmandy.?? That is Cut the PCB trace to it.?? Wire a GND jumper to pin 1.?? See cct. Makes it easier to

Hi Michael, To answer your question, as I understand it, I can connect my ZWO camera USB port to my computer USB and the camera autoguiding port to the Gemini (via an inverter). I can then use PHD2

Bought a used G-11 and the RA Motor is very loose.? It still drives the gears in the gearbox, but I'm concerned.? Mounting screws seem tight.? Any fix for this? Dave

Sorry, forgot to mention a tutorial website ( https://gemini-2.com/hc/ ) you can use to learn the hand controller. It’s an interactive HC of sorts so give it a try as well

You can set the scope in any position you deem necessary and set that as your home position. At the end of your session you just park at home position and then, on your next session, you can use warm

Thanks for the advice. 1. they seem fine. The first few I did with the atlas in the Asiair app were off a little, then after synchronizing those they got very close. 2. I am pretty sure the speed is

Thanks Greg and Brendan I'm now going through the instructions and looked last night at the HC. If I do a Warm Restart - level the scope either N or S and Set Home Position - do I lose the Park at