Wednesday, September 16, 2009

Super Polaris Mount to retire...

The inevitable has happened. The Super Polaris Mount is to be retired immediately. Age and a decrepit motor drive hindered it's ability but it managed through the heavy spring and summer observing season. An error has been occurring in one of the cable's and the RA motor is not receiving any input. The other cable worked fine, but knowing that is starting to happen, it's time to retire. The mount will be used in reserve on the old wood legs if another EQ mount is required should it need to be used.

Replacing it was an orphaned Celestron CG-5 Mount head, non-computerized. A dual axis motor drive was added and the mount was quite capable tonight supporting the old Refractor. Observing was limited in and out of clouds but the drive tracked very smoothly with no oscillation. There is a little bit of slack in the motor after going in reverse, but it is not of any concern. Overall I am quite pleased. Dampening time is now a very acceptable three seconds on the old Refractor (down from 5.5 seconds on the SP Mount).

This completes the modernization of the mount which quite literally was from the bottom up.


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