I've got back to this. Since my last woes, I've stripped down the G-11 and regreased. Everything seems pretty good - except guiding, which at present is totally non-functional.
There is something going on with the camera/image gathering arm (somewhere) but even when that is OK, the guiding is not.
With guiding off - everything is quite settled - watching the PHD2 screen shows the star field static at the mount tracks. I've stacked an image without any alignment below - it does show the mounts PE and the dec drift over 30x10s exposures and 12 minutes. The polar alignment needs work, but seems 'OK'.... Stars are a bit oval, I suspect mostly due to this drift. The PHD2 screen shows the dec drift and the mount periodic error.
When I hit the guide button, all hell breaks loose. Immediate large amplitude deviations in both axes. Watching the screen - you can see the guide star marching off the screen. When I first saw it I went looking for the cable snag....
Last edited by Lee; 25-11-2018 at 07:09 PM.
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