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Re: How is the belleville washer solution working?

 


Chip,

That's a very interesting observation (that the spring washer orientation may not matter much).??
There are a lot of experiments that are possible... just not enough time (and nights) to really run all the evaluations.

I think that once the worm is tightly confined axially, and the bearings are high quality, you only see the quality of the worm effect on the PE.??

I was shooting Saturn last night on a CG11, at f/30 (12 inch f/10 Meade SCT, with ASI224MC camera).? The promised (clear dark skies prediction) of excellent seeing was not realized...and there was too much moisture and haze.? But though the image quality was not great, the image essentially filled the 1900 pixel wide imager chip.? I had very little PE (but it was not zero) to cope with.?

Here is a final processed image.? This was at f/10 but rescaled up and adjusted after stacking (autostakkert3).

All the best,
Michael

On Fri, Aug 23, 2019 at 9:50 AM Chip Louie <chiplouie@...> wrote:
Hi Michael,

My original layout 2-piece worm block straight drive G11 worked very well with two Bellevue springs arranged with the small ends facing each other. I got my lowest most consistent measured PE with this configuration.?

Once I updated to the tucked motors and Gen II OPWs a couple years ago and after testing I didn't want to touch it because it matched the 2-piece setup PE. I have had Scott update the G11 again adding the spring preload mod and have not tested it again but will do so once I baseline the mount again.

--

Chip Louie - Chief Daydreamer Imagination Hardware



--
Michael Herman
mobile: 408 421-1239
email: mherman346@...
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