More ideas for a change in Dec guiding:
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-the Dec clutch has come loose and does not respond fully to motor pulses
-the Dec clutch pad got oily and need to be cleaned
-the scope may have been bumped or otherwise lost some polar alignment?
?
Other than that, your guide log will help diagnose, as already mentioned.
?
John
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Losmandy G11G2 on pier; refurbed Losmandy G11 with OnStep controller; SkyShed design roll-off observatory; ZWO ASI2600MM-P; ZWO ASI071MC; Sky-Watcher Esprit 100 ED with field flattener; Celestron C925 Edge HD with 0.7XFR, William Optics Zenithstar 61 APO; PHD2, Sequence Generator Pro and PixInsight user
