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Old 17-10-2007, 10:39 PM
noelo
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Join Date: Jun 2006
Location: Sydney
Posts: 40
Quote:
Originally Posted by AndrewJ View Post
If you have a scope with RA hardstops, you MUST start from approx home position ( with RA clutch locked ) and let it slew near to the first star,
THEN release the clutches and manually centre.
The scope only knows where it is "relative to the stops", by counting how many encoder ticks it has moved each way,
In DEC this doesnt matter, but in Az/RA, there are some situations where you could choose two ways to get to the align star if fully manual
Pick the wrong way and you may hit the stops later in the night

Andrew
Thanks Andrew, I didn't know this and it didn't have any impact at the time but I can see how it would. I have learned something new...

regards
Noel
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