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Matthew,
If your alignment is varying, then it is the NS EW offset parameters that need tweeking.
Once you get a consistent dome to scope slaving,you can then tweek the ' 'sync home to xxx degrees'.
I did a rough guess, then added 2 x 5 degree steps until satisfied.
Home is a function of the reed switch and magnet so will vary depending on where you actually place the magnet.
Park is a function of the offset parameter 'sync park to xxx degrees' for shut down clearance or in my case gust lock alignment and solar panel azimuth.
I actually relocated the gust locks on my second hand dome to ensure the panel was close to due North. I also relocated the home magnet to the same azimuth so that when doing a manual slew, it is easy to slew to the home position where the dome will stop automatically as it passes the magnet.
It is also very easy to get 'lost' inside the dome so I also added azimuth labels on the walls.
Neil.
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