Quote:I once read a review about it compared with SW100ED.This is one I want to buy in the future.
Quote:Below is a picture of the scope.
SLAP Observer --- TMB130SS, SV102V(LOMO Lens), SV80ED Deluxe "The only thing necessary for the triumph of evil is for good men to do nothing." -- Edmund Burke. "People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." -- George Orwell "The measure of a man’s greatness is not determined by what he accomplishes for himself, but by what he accomplishes for others.” -- Some Bald Guy
Quote:Yeah...weight and portability was my main reason for buying the scope. It's hard to find that in the 100mm range at a low cost. I was surprised this scope got discontinued. Maybe it wasn't selling too well. There were 3 or so companies selling it.
“I am the only person to ever ace a 1951 USAF resolution test. My 'to observe' list says 'done'. I do not use charts or atlases when I starhop; men do not use maps. One of my sketches won an SBIG deep sky imaging contest. I am the life of star parties I have never attended. I never say anything looks like a faint fuzzy - not even a faint fuzzy. Pilots aim green laser pointers at me. Don Pensack proofreads my CN forum posts.” - The Most Interesting Astronomer in the Universe
Quote:Yes...the stock focuser was replaced by a WO focuser.I understand the stock focusers with these scopes were problematic. So I believe most vendors or owners replaced theirs.The focuser on it works good.
Quote:yep...did you ever get it working? Is it just a bad design?
Quote: How does one get it off? I see the small black metal screws down the indention at 120* angles. Do I unscrew them? I don't see anything to attach the single speed Crawford on the tube, proper. Will I need some kind of adapter? Who might sell one? Any information is appreciated.
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Quote: Jon , I did exactly the same thing , works a treat .
Then I dissasembled the whole thing , and found the 3 balls that drive the 10-1 reduction were made out of this kind of black rock material ?? , not round , or uniform in size , also the 3.2mm stainless steel shaft that drives the lot was only 3mm in diameter ,, damn .
After a bit of a dig around , I found that "NTN" bearings made a ball race # 6304LLU/2AS have real hardened and spherical balls that fitted my focuser's brass race ,.
I hand made a piece of 3.2mm , 316 S/S TIG wire to use as a shaft and its still working today , nice , not FT quality but a lot better than what left the factory and ended up on my ED80 ...
Quote:Gosh, Jon, I'd appreciate it. No big rush, but if you get a chance to snap off a shot, that'd be great. Still like the idea of the lightweight ED80 single speed Crayford on it. Honestly, at F/7, a single speed's all I need for fine focus, provided its good, and the Orion old school 80 and 100ED focusers were (and in my case, are). But any advice offered that covers either course, provided I get smooth focusing, is the right path for me. Again, no rush but if you can snap off a shot, can't hurt.
Quote:Jon, Is this the focuser you guys are talking about?Steve
Quote:Might be a stupid question but which of the two speeds remains enabled then, the coarse focus or the fine focus?
Quote: I have a focuser that came off a Astronomy Technologies 102mm F/7, not an Astro-Tech, it's the small company that according to Jim Barnett is in the same strip mall as StellarVue.
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Quote: Quote: I have a focuser that came off a Astronomy Technologies 102mm F/7, not an Astro-Tech, it's the small company that according to Jim Barnett is in the same strip mall as StellarVue. Hi Jon, The above statement is a bit confusing. Astronomy Technologies and Astro-Tech are one and the same. Astro Telescopes are the telescopes from Hands On Optics. I have several Astro-Tech scopes and not all the same focusers. I'm sure they have come from different sources and some perhaps the same as those from HandsOn.I seem to remember that when Astro Telescopes came on the scene, Astro-Tech wasn't exactly thrilled with the name. Anyway, my only point is to clarify company names. . I hope his makes sense.Best,
Quote:Thanks for catching my mistake. Hopefully Jim Barnett will pop into to clarify exactly the name of the company I was thinking of. It was something very much like Astro Tech.
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Quote:Jon,Yes, my focuser looks identical to this one. I have loosened the 3 120*-apart hex screws, and lo and behold, apparent smooth movement! Nothing like what it was! To me, it looks like the fine focusing part is still working, but we shall see. Again, I'm cool with it being a nice single speed, for F/7. All of this is academic, as I've not used it under the stars -- yet. Just enough time to give this a whirl between loads of dishes and putting one of our two girlies down. Gotta go do night-night duty now. I'll let you know how this works under the skies.
Quote:A couple of months ago I bought the 110mm version of this scope and have been thoroughly enjoying it.I haven't had a problem with the focuser.It seems very smooth, and handles quite a lot of weight.Frankly its better than any GSO focuser I have.Is there something I should watch out for?Steve
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