Thanks Steve, writing it down did help, indeed. I like this mount, too. iOptron switched from servo to stepper motor in 2016, I heard on YT, and that made the motor inaudibly quiet, they claimed in the vid. And it's true. I hear nothing. Only when slewing at 512x.
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The Ioptron Goto alignment system is based on a level mount and the scope pointed vertically towards the zenith. Did you start your alignment with the scope pointed vertically towards the zenith?
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For alignment testing with imagined binos on an L-bracket like in the photo, I put a rolled paper into the clutch, the "long bar", with the roll top bent to an L-shape, the "short bar". The roll, i.e. "the long bar" in the clutch was in Zero, 90* vertical, at the beginning. The short, bent part of the roll on top reached horizontally over the mount head and held the imagined binos looking at the horizon.
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The long bar would have started out in the horizontal position. I would have thought that this would have given you a correct alignment.
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oh? I don't understand.
In both my tests, the "long bar" was in Zero and upright, not horizontal.
What I believe I learned was that it's okay to losen the alt clutch and move it manually during alignment. I had wrongly assumed such manual manipulation would confuse the software and adjustments during alignment procedures needed to be made using the handcontroller.
Thanks, Annette