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Old 21-09-2021, 08:20 AM
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pmrid (Peter)
Ageing badly.

pmrid is offline
 
Join Date: May 2008
Location: Cloudy, light-polluted Bribie Is.
Posts: 3,678
Quote:
Originally Posted by pan_ik View Post
Hi Guys, thanks for the feedback.

If you imagine the RA like a clock, as the scope tracks east to west, once it passes the 12 O'Clock position and starts moving towards 11, I have twice seen the scope continue on its merry way towards 6pm at an increased rate. RA Clutch is nice and tight.

I have only seen this with the Newtonian, with my camera setup all has been fine. Thats why I was wondering if I am overloading it, or if simply adding more counterweight will fix this.
I have trouble imagining how this might occur. Before I attempt a diagnosis, let me ask one more question. Does your Dec axis also spin around in the same way?

i am beginning to wonder whether the worm gears or the spur gears are adequately tightened.

My instinct is to suggest you contact a local IIS member and ask them to take a look.
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