Posted 18 March 2012 - 07:25 PM
Posted 18 March 2012 - 07:56 PM
Align it well, and it may reward you with tack-sharp views, in the vein of a Questar 3.5, but with slightly higher resolution and brighter images.
Posted 18 March 2012 - 09:37 PM
Posted 19 March 2012 - 03:51 PM
Posted 19 March 2012 - 05:59 PM
Posted 19 March 2012 - 09:02 PM
Satman - we are here to help any way we can
Posted 19 March 2012 - 09:06 PM
(snip)...it's good to know my friends here can help me if I run into difficulties collminating the meade if it is required.
That's what we're here for!
Posted 19 March 2012 - 09:34 PM
Posted 19 March 2012 - 10:39 PM
When you receive yours, could you peer up into the rear end and ascertain the presence (or not) of a lens in the secondary baffle. I'm still not sure if my scope was something of an anomaly, in spite of the fact that it was an f/10 astro OTA, and not specified as a telephoto lens.
Posted 19 March 2012 - 11:14 PM
My 2045 says "Schmidt Cassegrain" around the corrector, but the spotter I have says "mirror lens" and is a Klevstov configuration, not an SCT.
Posted 19 March 2012 - 11:34 PM
Is the "mirror lens" also f/10? My memory is likely faulty after a quarter century (Lordy, it sounds so long ago when I put it that way!), but I really seem to recall it being the "Schmidt Cassegrain" variant. And would the mirror lens have been sold as the LX-3 equatorially-mounted system? I did purchase it new from an astro shop in Calgary.
Posted 20 March 2012 - 06:49 AM
My Mirror Lens is identical in outward appearances to my 2045 SCT. I didn't believe when someone on here told me that I would find a doublet corrector "in front of" the secondary (really, one element aluminized on one side), until I took it apart.
I *think* I did the same with the SCT and found it was indeed a mirror-only secondary, but it's been a year or so and I don't remember for certain. It's easy enough to take these apart and put them back together, though.
I'm surprised that they would put the mirror lens on the LX-3 mount. Mine came as a spotter in the smaller case with eyepieces, visual back, and I think a camera adapter - and of course the tripod adapter and a finder. I bought it from the Meade booth after the post-Halley deals at RTMC in 1986 or 87. The 2045/LX3 I bought in the past few years.
To my knowledge, these were built entirely in Japan. There was no assembly at Meade in Costa Mesa.
I was working at Meade in 1979 when I "accidentally" saw prototypes of the 4 and 8" SCTs in a storeroom at the Costa Mesa facility. One of the 4" prototypes showed up here a year or two ago. They had purple tubes, rather than blue, which is how I recognized it as a prototype. But I don't know when the mirror lens versions were made with respect to the SCTs.
Posted 20 March 2012 - 08:24 AM
And would the mirror lens have been sold as the LX-3 equatorially-mounted system? I did purchase it new from an astro shop in Calgary.
Wow, while it could have been an honest mistake at the factory or they just ran out of the ota so substituted a spotter, I've seen bizarre things.
It could have also been swapped out at the dealer by someone wanting a non-spotter version of a spotter, I suppose. One time I couldn't believe what I saw, I bought a HD DVD player (1080P) and the guts were swapped with an older non-1080P version.....
Posted 24 March 2012 - 03:00 PM
The main problem with the instrument is the RA shaft gear sheared off at the clock drive some time ago, I have the gear and I think I can punch out the broken pin from the spur gear with out damaging it, the clock drive shaft side appears to be more difficult it broke flush with the clock drive coupler shaft . It has to be drilled out I don't think this is easy or possible. Is there any way to modify the base so the manual slow motions do work? With out the tension on the drive gear eveything spins freely. Maybe I can create some kind of friction clutch with a a nylon bolt and nut untill I can replace the clock drive or drill out the shaft with a 1/32" diameter drill.
Posted 24 March 2012 - 03:47 PM
I think I can get the manual slow motions working until I can find a replacement drive motor . 3/8" diameter nylon bolt and nut bearing on the drive gear , non destructive and it works. It's not visible from outside the base casing As a bonus the base fits my Tri-stand.
For $30.00 how can you go wrong?
Posted 24 March 2012 - 10:02 PM
Any chance you can post a few pictures of the broken drive and motor? There might be a CNer who has a spare motor they'd be willing to part with, and most likely the rest can be cobbled together.
Posted 25 March 2012 - 09:40 AM
Posted 25 March 2012 - 09:42 AM
Posted 25 March 2012 - 09:43 AM
Posted 25 March 2012 - 09:45 AM
Posted 25 March 2012 - 10:01 AM
Option #2 De-fork the mount and use it on my Vixen Porta mount like my LOMO Astelle 94. Question How do you remove the OTA on these older Meades? (this model has a camera tripod adapter base with a 1/20 thread in it)
Posted 25 March 2012 - 11:22 AM
I think you just remove the 2 allen bolts on either side of the cell to take the OTA out of the forks. You should also loosen the bolts on one fork arm to allow removal without scratching the cell. but I cant remember if these are easy to reach or not.
Posted 25 March 2012 - 12:43 PM
I managed to get the Manual Controls working by inserting in the clock Drive holes a 1/4" nylon bolt ,washer and nut to act as a thrust bearing on the main drive gear . the slow motions now work great and there is just enough tension to move the scope with the RA lock off, like when the motor is there but you don't want to use it. I removed the plug Receptacle and the motor for safety reasons . easy fix and does not alter the scope .
Posted 25 March 2012 - 12:44 PM