Re: Opening up a Meade LX-2
- From: "matt" <electro_optic@xxxxxxxxxxxxx>
- Date: Mon, 9 May 2005 11:28:44 -0400
RMOLLISE wrote in message
<1115641707.972332.195190@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>...
>
>Bob Liesenfeld wrote:
>> Hi gang,
>> I have a Meade LX-2 8" SCT from about 1988. I would like to open
>the
>> tube assembly up. I have removed the hex head screws from the
>corrector
>> plate cell (the ones on the side not the ones around the periphery of
>> the corrector face) as well as the ones from the mirror cell, but
>both
>> these castings seem to be firmly locked in place to the tube. Anyone
>> know how these things are removed? Perhaps something akin to a
>bearing
>> puller??
>> Thanks and clear skies.
>>
>> Bob L.
>
>Hi:
>
>If you've got an LX-2, you've got an incredibly rare scope. AFAIK,
>Meade only made a few prototypes, with their "new" model being called
>the "LX3".
>
>You will find that the corrector assembly and rear cell are usually
>_glued_ as well as screwed.
>
>Peace,
>Rod
>
I have a similar scope and the rear casting is epoxied to the blue tube , as
well as the front casting . The screws are there for other purposes like
mounting the tube to the fork , but the blue tube itself is bonded to the
rear and front castings by a very strong glue or epoxy.
There's no point in attempting to detach them because all other parts can be
removed without separating the front and rear castings from the tube .
The corrector plate must be removed first, by removing the allen head screws
on the ring around the corrector , then the primary mirror comes out
through the front (there are 2 cutouts in the corrector cell , which allow
the oversized diameter primary to be pulled out ). My tube has 2 thin
cardboard automotive like round gaskets between the aluminum ring and the
corrector plate .
The corrector is not glued or stuck in place, my scope has it held in place
not with the usual cork pads but with some precision square teflon like pads
glued to the front cell . The corrector slides out easily but has no slop ,
the pads remain in place attached to the front cell.
My particular scope has also a removable baffle tube which is attached with
4 bolts to the rear cell .
The primary slides on the baffle tube on some teflon pads and a kind of
adjustable tension teflon slide to remove mirror flop . This is the original
factory setup and was not a modification .
The secondary is held in an all metal cell and holder, not glued, but has a
screwed on retaining ring and some cardboard gaskets to hold it in place .
The secondary collimation is accomplished through a tip/tilt type mechanism
as the ones used in optical labs, with 2 adjustment screws placed 90 deg
apart instead of the usual 3 screws .
With the exception of the glued tube to the front and rear cell, everything
in the scope is machined and designed to be taken apart. No plastic parts,
no injection molding, only metal and glass parts . It is a scope that could
be built in a reasonable machine shop , and doesn't have the mass production
features yet .
best regards,
matt tudor
.
- References:
- Opening up a Meade LX-2
- From: Bob Liesenfeld
- Re: Opening up a Meade LX-2
- From: RMOLLISE
- Opening up a Meade LX-2
- Prev by Date: Re: Herschel Wedge
- Next by Date: Re: Some jaw-dropping amateur jupiter images.
- Previous by thread: Re: Opening up a Meade LX-2
- Next by thread: Comet Tempel, TV76, 5/7/05
- Index(es):
Relevant Pages
|
