Fix for Celestron C11 Slipping RA drive.

[A.S.I.G.N_Baz]

After checking out a basic online tutorial that didn't quite find my problem, I ended up finding it when I put it all back together.

So, I thought I would create my own tutorial, to help out others with similar problems.

http://www.aussiepeople.com.au/asignobservatory/Troubleshooting.aspx

Cheers,

Baz.

[wingeing Pom]

Very nice tutorial!!! Thank you.
Greg

[Radar]

Thanks for that Baz. Info like that always comes in handy for people. :pipethinker:

[A.S.I.G.N_Baz]

You are very welcome gents!

If it helps ONE person, it was worth doing.

Baz.

[AstroTasmania]

Hi Baz,

Very nice tutorial on how to fix a fairly common problem. Often users take this step when the gear wheel is too worn and needs replacing. Once the teeth are worn, good tracking is very difficult and PE (periodic error) is very pronounced.

At the high focal ratio of f/10, even the slightest wear shows up on a long exposure image.

Thanks for sharing with the members.

Clear skies...Shevill

[A.S.I.G.N_Baz]

Thanks Shevill,

Thanks to the fact that I have hardly used the scope in EQ, this wear has been minimized.

Because I noticed that it did the slipping only in EQ and I was mainly observing in ALT-AZ then only a few teeth have a slight half-moon shaped curve cut in the tips of them.

The rest of the affected teeth are still square and have clean edges. I was lucky I found it before I persisted in EQ photography, now that I have a capable camera.:pipethinker: