Would it not be easier just to move the file to another folder, say /APPM-PNT-Backup/? Then you do not need to worry about editing and the file could be easily moved back and restored to APPC, if

Loose front ring sounds like the culprit. Rolando

Hi Chris, Yes, any slop in the guide assembly, e.g. mounting, camera, focuser, etc., can lead to differential flexure and it can be a real pain to isolate and fix. You mentioned that it appears in the

Yes, certainly not the mount. Focuser is tight on both main and guide scope, cables are routed and bundled as they should be, guide camera is tight and focuser/guide bracket are tight. BUT, the front

If your guide scope is held only in 2 places, you will get differential flex. Needs to be held in 3 places. Take a look how we mount a guide scope: https://www.astro-physics.com/guidescope/ Rolando

Have to admit I didn't think of that, but am aware of the problem. I broke everything down and reinstalled the guide scope between the two sessions. I typically tighten those guidescope mounting

If your guide is good then the mount is doing what it's supposed to. That does not mean that your imaging scope is doing the same thing. Remember, the mount responds to the guider, not to the imaging

It sounds like differential flexure to me. Have you check that the guide scope hasn’t worked loose from the main OTA, it won’t need much and you probably won’t even see it. Guide performance may

Thank you very much Karen.

So, I have experienced an odd problem, to me anyway, the past two nights of imaging. I doubt it is related to the mount, but I won't rule anything out and wanted to run it by the group here before

You can remove them too but those won't matter if there is no PNT file. -Ray Gralak Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro Author of PEMPro V3:

I would NOT try to use the same settings for both instruments. Have a scale and FoV for each.

Thanks Howard!-- Brian Brian Valente portfolio brianvalentephotography.com

Thanks Ray what about the sections <WestPointingModel> and <EastPointingModel> that follow the <PointingModel> xml? -- Brian Brian Valente portfolio brianvalentephotography.com

Brian, Ray's solution is probably better than mine, although you might consider doing both. Here is an example of the lines to delete. Yours may differ

Brian, 1. Shut down APCC if it isn't already. 2. Edit the file "C:\ProgramData\Astro-Physics\APCC\settings.apcc" with notepad or other editor. 3. Locate the and delete the lines starting with

Simply delete or rename the file. The default path is: C:\ProgramData\Astro-Physics\APCC\Models\ApPointData-yyyy-mm-dd-hhmmss.pnt I would rename it and then delete it only after you are certain

Great, thanks. Rolando

Is there a way to completely clear an APPM-generated model from APCC? I see i can disable pointing and tracking, but i want to remove the model completely from APCC thanks -- Brian Brian

I just did that upgrade myself just a few weeks ago and had no problems. It installed alongside APCC, so you'll have both available until you're sure of the switch. I embarrassingly was