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Chris,
Thanks for the notes about the stair opening, looking at my posted snapshot I noticed that I had included the wrong stair layer - it was a construction layer that does not line up with the floor opening.
My rationale was that with the pier offset to the North there would be less room in this quadrant, therefore the opening is in the South.
Is that a good idea ?.
Looking at a couple of automation descriptions and algorithms, surprisingly they do not take account of dome slot or aperture width. They just try to align the aperture center line with the scope.
When you had the LX90, was it alt/az or equatorially mounted ?.
In trying to answer my own questions, I am doing a bit more CAD modelling with a Paramount ME as a comparison.
At 36.8s, I have an offset of 47mm to the Dec/RA axes, but unlike the LX where this lines up with the OAT center, it appears to me that you then have to add the OTA radius and mounting rings ?.
Neil
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