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Equipment Discussions >> Mounts

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tboss70
Carpal Tunnel
*****

Reged: 11/25/05

Loc: Missouri
Losmandy G11G2 with new Ovision new
      #5546918 - 11/30/12 10:19 AM Attachment (31 downloads)

After several adjustments with the original stock high precision worm (no OPWB) the best I could get was approximately 11 peak to peak.
After more adjustments to try and achieve better PE it was difficult for me to get back to this number. More frequently I was around 13-14 peak to peak.

So after much thought and hand-wringing I decided to go with Ovision. After a few initial adjustments this is what I got.


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tboss70
Carpal Tunnel
*****

Reged: 11/25/05

Loc: Missouri
Re: Losmandy G11G2 with new Ovision new [Re: tboss70]
      #5546921 - 11/30/12 10:21 AM Attachment (21 downloads)

I think I can get even better with a few more adjustments but I'm not sure where to start. Can someone help interpret this graph so I know where to start?

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Hilmi
Post Laureate
*****

Reged: 03/07/10

Loc: Muscat, Sultanate of Oman
Re: Losmandy G11G2 with new Ovision new [Re: tboss70]
      #5546979 - 11/30/12 11:06 AM

Why bother? Looks good enough at +/- 3 Arcseconds. Maybe you can just train your PEC

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tboss70
Carpal Tunnel
*****

Reged: 11/25/05

Loc: Missouri
Re: Losmandy G11G2 with new Ovision new [Re: Hilmi]
      #5547014 - 11/30/12 11:33 AM

I thought about that. But in looking at the frequency spectrum it just seems a little "noisey". I need to try with guiding next to see how far it gets reduced; then with PEC.

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tboss70
Carpal Tunnel
*****

Reged: 11/25/05

Loc: Missouri
Re: Losmandy G11G2 with new Ovision new [Re: tboss70]
      #5547734 - 11/30/12 07:26 PM Attachment (16 downloads)

In looking at this I think the 32 second error is from the gearbox. At least I read that in another thread...that 32 second was the gearbox. For me thats about 1.2PE of error.
I guess I could switch the gearboxes on DEC and RA and see what it gives me.?

How do I interpret what the other are, like the 2nd 3rd and 4th harmonics? What do they correlate to?
Here is a better defined graph with PE.

Edited by tboss70 (11/30/12 07:27 PM)


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tboss70
Carpal Tunnel
*****

Reged: 11/25/05

Loc: Missouri
Re: Losmandy G11G2 with new Ovision [Re: tboss70]
      #5547749 - 11/30/12 07:34 PM

Actually I found the answer here. Just had to read further.
http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/2747392/page...


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