Thread: Polar Alignment
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  #10  
Old 22-07-2007, 12:26 PM
Doug
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Join Date: Mar 2006
Posts: 645
Hi Zuts, an EQ6 should handle an 11"ota, but wait off for a little while yet. It is true what Baz said about balance, though my experience with a Meade 12" classic (fork mount) is that balance effects tracking 'big time', but has little effect on actual goto. This is because even if the load on the mount varies and requires more pulses to get where it is going, they will be supplied. The mount does not only calculate how many pulses to send to the motors to slew a given distance, it also looks at the shaft encoder outputs. The shaft encoders only report actual motion, not guesstimated motion based on theory( if you follow my drift) so as long as balance is not excessdively out, any balance issues are mostly eliminated in a slew (goto) operation. Tracking is a different issue altogether; Even auto-guiding will not cure a poorly balanced setup. When Goto fails, it is almost allways due to incorrect setup.

Doug
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