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Henk the backlash calibration looks fine to me? southern movement is not part of the calibration you're right they are both too big [image: image.png] -- Brian Brian Valente portfolio

From the calibration graphs, it's not just the RA that has steps that are too large but the DEC calibration steps are almost all backlash clearance (the ones labeled B).? There are just a few small

Thanks, John. I can sure try the MI-250 settings. I had set the limits but didn’t account for the difference in length between my new refractor and my C8.

Yes, as I mentioned this doesn't directly address your bumps, but I think it's important to make sure everything else is working correctly Another thing that would help is a longer unguided run like

Thanks, you're right, I don't have very good calibration. I'll do that next time I'm out. But I don't think that it's related to the issue that I'm seeing. I generally use similar settings for the

PHD recommended min limit for image scale is 0.5" so i would bin 2 at a minimum all of your calibrations are problematic here's a typical example the calibration run should be 25 pix across 12 steps,

Yes, using my 178 it should be 0.35 when using the OAG. I have binned it in the past but found that it didn't seem to help, so I just leave it native. Using my 1600 it should be 0.55 according to

Jamie is your pixel scale really 0.34"? the calibration looks really wonky too (or as a result) jamie.amendolagine@...> wrote: -- Brian Brian Valente portfolio brianvalentephotography.com

Here it is. I believe that from 19273 seconds onward the scope was on the East side, and before that point it was on the west. Jamie

I'll do that now. My plan for tonight is to switch to the guide camera where everything was working fine a couple weeks ago, before the recent rains. Jamie

Jamie Screen captures aren't helpful for this kind of thing. if you can upload your guidelog that would be great jamie.amendolagine@...> wrote: -- Brian Brian Valente portfolio

https://photos.app.goo.gl/zGSCy7Kzqqt86TVu5 OK, one more before I turn in. This is with the scope on the East side instead of the West. I'm not sure what to make of it really. It's pretty bad for one,

Michael, you are awesome! So I've already switched my guiding to use the main camera, a ZWO ASI 1600MM Pro, from the guide camera, which is a 178MC. So far things are looking much better, but I'm

Dear Jamie, Let's try to chase the cause...a couple of simple things to try: 1. Balance the mount in RA and DEC. 2. Now unbalance the RA: Wrap a rope or cord around the RA axis so the string drops to

https://photos.app.goo.gl/mBHmHzaXTzuGijeNA I've been having what is becoming a frustrating experience with large RA spikes. I've lost track of how many nights that I've focused on just getting

That additional computer interface is on my ever growing ToDo list! Actually, you can just use the ammeter to tell if the mount is balanced, which you tell by slewing CW and CCW on an axis...best with

Michael, Does your ammeter just give reading, or can you get an amps vs. time plot? I was thinking graphing the data might be a way to show potential resistance to motion as the worm turns against the

Jeff, Sounds like you need to reset the mount limits. Personally I use the MI-250 default settings which are the most conservative, or give the widest margins. There is a way set set your personal

About polar alignment. So you do some pointing adjustments to the east and some pointing adjustments to the west. After four or five adjustments you get a different prompt and center the last star

Very pretty!!!! Nice work!! - Michael [email protected]> wrote: