So the problem existed well before messing with gearboxes or encoders. Is it possible to reset Gemini II to its factory defaults? I hate to do this because I'll have to reprogram everything.??
There is definitely an abrupt transition point where both the AZ and Alt axis coordinates jump. The Alt value goes from +80s to a negative value. However, in this dead zone you can still navigate to stars correctly even though the coordinates being shown are wrong.? Hence, to can navigate to a point just outside the dead zone on the target reappears on the chart. The problem with the flip if you are in this deadzone, is NINA grabs these messed up coordinate and slews to them.
So it seems the problem is with the Gemini II controller and not the driver?
Peter
