New Sirius Owner..Few ??'s
Posted 09 April 2011 - 08:55 PM
Posted 09 April 2011 - 10:21 PM
I suspect the "gear grinding" is a bit of extra noise as the stepper motors are accelerating to a high slew speed. It shouldn't be a problem.
If you have any questions; don't forget that there's lots of star parties hosted by the Lake and Geauga county parks systems. You'll find members of the CVAS (Chagrin Valley Astronomical Society) at all of the star parties with their scopes. The one held two weeks ago was my first with my new Atlas mount. All of my previous ones for the last few years have been with a Sirius mount.
Posted 09 April 2011 - 10:28 PM
Posted 10 April 2011 - 08:35 PM
If you plan on doing drift alignment when setting up the mount; you need to remember to carefully level the tripod before attaching the mount. This isolates the azimuth and altitude adjustments when doing the polar alignment.
I put a piece of masking tape on the polar scope eye[piece to keep it in focus. Fabric stores sell "decorator velcro" that's sticky on only one side. It's great to make tie points on the mount to guide cables.
Posted 10 April 2011 - 09:22 PM
As to the time zone, Page 26 of the Owners’ Manual has a time zone chart.
Posted 12 April 2011 - 06:12 AM
Posted 12 April 2011 - 08:57 AM
Normal for both the Atlas and Sirius.
At the beginning and end of slews these mounts generate some "gear chatter" or resonance. Some have more of it than others, so presumably it could be tuned with gear mesh adjustment. But mine's never missed a day and here's what it sounds like:
Slew Start-up: "Bwwwwrrrjjjjjeeetttttt...rrrrrr...hmmmmmmm..."
Slew End: "hmmmmmmm....rrrrrrraaaaaawwwwwwwwnnnnnnnjjjjjjjjtttt..."
At Idle/Tracking: "...eeeeeeeeeeeeeeeeeEEeeeeeeeeeeeeeeeeEEeeeeee..."
Low Battery Cut-out: "wwwwwwwwWWWWWAAAAAAAJJJJJJJJNNNNNGGgggrrrrrrKkkkkkkkksht..."