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Polar scope borehole...CG11

 

Hi gang,

There was a recent question about the polar scope borehole DEC angle.? Someone mentioned it was strange it was not at 90 degrees from CWD.?

Just now examining that on my (old) Celestron G11 ("CG11"),? I get exactly 90 degrees.? Just the same as on my Orion Atlas/Synta EQ6.??

But on my newer version GM8, that polar scope hole is 60¡ã on the DEC axis where CWD is 0 ¡ã DEC.? (That is, I must rotate my DEC axis 60 degrees CW as viewed from the top looking down. )

So somewhere in the annals of history, Losmandy changed its design spec for that polar scope through-hole angle.? Or maybe the G11 is different than the GM8... ???

Anyway...the answer is: there is no single answer at least at my house.??

Best regards,
Michael?
 

maybe this is a dumb question..... but why is it offset at all?
just curious


-Jeff
 

So you don¡¯t bang your head on a long ¡®scope while trying to polar align.



Dave



From: Losmandy_users@... [mailto:Losmandy_users@...]
Sent: 19 October 2017 12:57
To: Losmandy_users@...
Subject: [Losmandy_users] Re: Polar scope borehole...CG11





maybe this is a dumb question..... but why is it offset at all?
just curious


-Jeff








[Non-text portions of this message have been removed]
[email protected]
 

When I first took mine out of the box and set it up, I didn't know squat about an EQT mounting system, as I had always been a Dobs guy..

Anyway after I installed the mount to it's tripod in my house so I could play with the thing, I noticed that polar scope hole was partially covered. At that time not knowing about the DEC and RA clutches, and being able to turn everything like you want manually after loosening those up some...

As for that DEC ring there is something said in the manual about turning your scope parallel to Polar axis, and then it should read 90 degrees, duh...When I connected the motors and the scope and did a slew that ring was not even moving, About a week after this, someone told me you can turn this by hand.

I'm still scratching my head over this one. My goal as I learn this new mount system is to be able to look at the DEC and Alt numbers on an object and manually turn the scope there by using these rings....Maybe one day...Got a lot to learn...!

Rodney
[email protected]
 

Hmmm, that's the reason why they say turn the scope...?? I had no idea...Don't bang your head...(:>

Rod
 

Any offset angle moves the scope out of the way...that does save ones noggin.?

But but but...

That's why the polar scope hole should be at 90 degrees.? Why would you want to put it at 60 degrees CW? ... Which is 120 degrees in the CCW direction. ?

Just makes another IQ test in the dark.? You wouldn't want to stick you finger in there or lop it off in the dark.? I will mark the angle with a sticky label ...?

Michael


On Thu, Oct 19, 2017 at 6:49 AM f4chief73@... [Losmandy_users] <Losmandy_users@...> wrote:
?

Hmmm, that's the reason why they say turn the scope...?? I had no idea...Don't bang your head...(:>

Rod

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

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Michael,

I believe it a compromise between getting in the way of one¡¯s head and having to reach the altitude adjustment knob which having the scope at 90 degrees would be frustrating.

Regards

Paul

On 20 Oct 2017, at 3:17:13 am, Michael Herman mherman346@... [Losmandy_users] <Losmandy_users@...> wrote:


Any offset angle moves the scope out of the way...that does save ones noggin.?

But but but...

That's why the polar scope hole should be at 90 degrees.? Why would you want to put it at 60 degrees CW? ... Which is 120 degrees in the CCW direction. ?

Just makes another IQ test in the dark.? You wouldn't want to stick you finger in there or lop it off in the dark.? I will mark the angle with a sticky label ...?

Michael


On Thu, Oct 19, 2017 at 6:49 AM?f4chief73@...?[Losmandy_users] <Losmandy_users@...> wrote:
?

Hmmm, that's the reason why they say turn the scope...?? I had no idea...Don't bang your head...(:>

Rod

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

¿ªÔÆÌåÓý

Maybe your saddle is not where it is supposed to be / meant to be??

?

Derek

?

From: Losmandy_users@... [mailto:Losmandy_users@...]
Sent: Thursday, October 19, 2017 9:17 AM
To: Losmandy_users@...
Subject: Re: [Losmandy_users] Re: Polar scope borehole...CG11

?

?

Any offset angle moves the scope out of the way...that does save ones noggin.?

?

But but but...

?

That's why the polar scope hole should be at 90 degrees.? Why would you want to put it at 60 degrees CW? ... Which is 120 degrees in the CCW direction. ?

?

Just makes another IQ test in the dark.? You wouldn't want to stick you finger in there or lop it off in the dark.? I will mark the angle with a sticky label ...?

?

Michael

?

?

On Thu, Oct 19, 2017 at 6:49 AM f4chief73@... [Losmandy_users] <Losmandy_users@...> wrote:

?

Hmmm, that's the reason why they say turn the scope...?? I had no idea...Don't bang your head...(:>

Rod

--

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

?

Virus-free.

 

PoleMaster don't need no stinking blow hole - hehe

Jeff

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