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Hello again, If I had to firm up this arrangement I would add black nylon thick washers on the three MA bolts and the three Pier Extension bolts as there is very little mating surface between their

Attached is a pic of my mount showing the adapter connection to my pier plate, the RA extension tube and then mounted to my G11G. I have verified every single bolt on the adapter plate, the RA

I added Belleville Washer to all 6 adjustment bolts above (in my 2 images) sandwiched in between 2 washers each. That wont solve my wobble issue but is a good tip to do.

Russ, You are probably going to have to start from the bottom of your pier and look at every connection for play. Some connector which appears tight could be creating a gap when load is applied

I have my G11 on the HD tripod in my living room right now, I will have it on my permanent pier soon and I will test for deflection.

Can you post more detailed pictures of the pier adapter plate your MA adapter is bolted to?

I have a center bolt through the adapter along with an additional 4 bolts and I verified those are all tight. Question, if you were to apply a slight force to the top of your mount, are you also

Both of my MA adapters are the bolted 2 piece design. Just bought one last Fall. How new are the welded ones? Sent from my Verizon, Samsung Galaxy smartphone Get Outlook for Android

Hello, As an old car mechanic, my suggestion to track down subtle movement would be to use your fingers placed on/across adjacent parts to feel for any movement while rocking the unit. P.S.: Rocking

I would agree with that, on my pier I do have the center bolt but also have 6 others spaced out further.

Just a thought… The ‘Drawing Needed’ thread implies that the pier adapter is attached using a single bolt through the center 0.50” thru hole. You might instead want to use 3 bolts through 3 of

Hi Ray, That makes perfect sense. Just a suggestion: maybe you can implement in PEMPro a monitor that would detect a star that is exactly the same brightness for minutes at a time, over multiple

You mean to tell me this program has trouble chasing the centroid of an artificially bloated star that is already scintillating due to poor and variable seeing conditions and a mount with periodic

The second video suggests that the wobble is coming either from the adapter base to flat pier plate connection, or the flat plate to pier connection. I think I’d take a close look at those

Hi George, Thanks for posting your log file. The possible reason for the jagged graph is that PEMPro selected a star that is extremely saturated. I can tell, because in your log the star brightness

That is somewhat heartening, oddly. The reasons I bought a mount I can work on (very inexpertly) and whose electronics can easily be separated from the rest of the mount might be? playing out. I am

Hi George, Attached are some pics of the gearbox internals and their respective periods (courtesy Mr. Fujita). None of the gears appear to have a rotational period aa fast as the errors you are

George, I've never seen this behavior before. If you try swapping the gearboxes and still get the same result (and also try swapping servo cables, if you can), I'd start suspecting Gemini controller

Russ, From my view it shows pressing against the top of the pier, below the mount.? When that pier flexes (slightly distorts) this adds energy into the mount above using its inherent inertia to