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Aircrftr
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Reged: 09/29/06
Posts: 245
Loc: Claremore OK
14" LX200 R focus knob question... new
      #1189720 - 10/09/06 09:46 PM

I have just received my telescope and this is the first one I've had with the mirror lock. ( had a 10" classic before) First thing I noticed is that the mirror lock knob can be turned about 8 or 9 revolutions before tightening up, and while turning it, it also drags the focus knob with it too. In other words, when I turn the mirror lock knob, it makes the focus knob turn too. This is mostly toward the unlock position that makes the focus knob turn with it. As I tighten it up towards the lock position it very gradually gets tighter and tighter, when is it tight enouph? I always had in my mind that the focus lock would be about a quarter turn affair, off/on type thing. So how should this mirror lock work? and is what I described normal?

Thanks, Dan

--------------------
14" LX200R
Orion 102ED
Cannon 20Da
DSI PRO (for autoguiding)
All stored in my "Mt. Wilson Observatory" elev.610 ft.


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NeoDinian
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Reged: 10/05/05
Posts: 12208
Loc: Rockford Illinois
Re: 14" LX200 R focus knob question... new [Re: Aircrftr]
      #1189844 - 10/09/06 11:06 PM

What you described is normal (The amount of turns at least.) Moving the focus knob while locking is not normal. Those parts are not even connected inside the scope. I don't see how it would happen.

--------------------
Neo... (Jeff)
-=-=-=-=-=-=-
10" LX200-GPS/SMT UHTC "Draco"

Rockford, Il.

NeoDinian's Eye on the Sky!

Coming soon:


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Aircrftr
sage


Reged: 09/29/06
Posts: 245
Loc: Claremore OK
Re: 14" LX200 R focus knob question... new [Re: NeoDinian]
      #1190398 - 10/10/06 09:36 AM

Anyone know of a link that would show the insides of the scope detailing how the focus/mirror lock works? I can hold the focus knob while turning the mirror lock, but I'm sure one is just dragging on the other.

--------------------
14" LX200R
Orion 102ED
Cannon 20Da
DSI PRO (for autoguiding)
All stored in my "Mt. Wilson Observatory" elev.610 ft.


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NeoDinian
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Reged: 10/05/05
Posts: 12208
Loc: Rockford Illinois
Re: 14" LX200 R focus knob question... new [Re: Aircrftr]
      #1190547 - 10/10/06 12:03 PM

Teh mirror lock knob (if you remove the knob, you'll see) has a small gear on it that when you turn it, it turns a LARGE slightly smaller diameter than the primary mirror) gear. The focus knob is connected to a rod, that is connected to the center-rear of the primary. The 2 parts are not connected to each other.

--------------------
Neo... (Jeff)
-=-=-=-=-=-=-
10" LX200-GPS/SMT UHTC "Draco"

Rockford, Il.

NeoDinian's Eye on the Sky!

Coming soon:


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Aircrftr
sage


Reged: 09/29/06
Posts: 245
Loc: Claremore OK
Re: 14" LX200 R focus knob question... new [Re: NeoDinian]
      #1190769 - 10/10/06 02:17 PM

Yeah, I've looked through MAPUG to see if I could find anything with pictures.. no luck.

--------------------
14" LX200R
Orion 102ED
Cannon 20Da
DSI PRO (for autoguiding)
All stored in my "Mt. Wilson Observatory" elev.610 ft.


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NeoDinian
Experienced Postmaster
*****

Reged: 10/05/05
Posts: 12208
Loc: Rockford Illinois
Re: 14" LX200 R focus knob question... new [Re: Aircrftr]
      #1190902 - 10/10/06 03:52 PM

If you're feeling brave, you could be the first to do a pictorial of the inside... Take LOTS of pictures..

--------------------
Neo... (Jeff)
-=-=-=-=-=-=-
10" LX200-GPS/SMT UHTC "Draco"

Rockford, Il.

NeoDinian's Eye on the Sky!

Coming soon:


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Aircrftr
sage


Reged: 09/29/06
Posts: 245
Loc: Claremore OK
Re: 14" LX200 R focus knob question... new [Re: NeoDinian]
      #1191069 - 10/10/06 05:54 PM

I'd like to. It's brand new from Meade though and I'll give them a whack at it although they havn't returned my call from yesterday and kept me on hold for customer service for about 45 minutes until 5pm mnt time then just a click and the phone call was over. I opened a ticket on the Meade help desk which hasn't been answered yet.....
Before getting the LX200R I bought an RCX 400 which wouldn't boot up when the power was switched on, sent it back to Meade, then it came back and about an hour into the observing session a wire smoked inside the OTA. So I done an exchange with the people I bought the scope from (telescopes.com.... great customer service BTW) and got this LX200R 14". Not much luck with dealing with Meade so far though.

--------------------
14" LX200R
Orion 102ED
Cannon 20Da
DSI PRO (for autoguiding)
All stored in my "Mt. Wilson Observatory" elev.610 ft.


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Aircrftr
sage


Reged: 09/29/06
Posts: 245
Loc: Claremore OK
Re: 14" LX200 R focus knob question... [Re: Aircrftr]
      #1191558 - 10/10/06 10:06 PM

Figured out what the deal was. When the mirror is all the way towards the back of the cell (transport position) the large disk that the mirror lock knob turns is right up against the focus mechanism. There is one hole in the disk that the mirror lock knob turns and that lines up with the threaded hole in the mirror cell so that you can insert the shipping screw that holds the mirror in place. As you move the mirror away from the shipping position, the mirror focus mechanism will no longer touch the mirror lock wheel.( or sprocket, what ever terminology you want to use.) Sure would be nice if Meade would sell me a service manual....

--------------------
14" LX200R
Orion 102ED
Cannon 20Da
DSI PRO (for autoguiding)
All stored in my "Mt. Wilson Observatory" elev.610 ft.


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