meade sct disassembly

Remove the pier bolt from the box containing the power supply. You would have though by now these companies would have made scratch resistant coatings. The Meade 8" f/4 LX85 astrograph reflector telescope features the AudioStar controller - a full GoTo system to locate and track objects. You can also get grease on the black paint, and worst of all, you could damage the edge of the primary by banging it or scraping it against the cell as you remove it. Could give some idea to remove that piece? Straight out of the manufacturer. Safely attach telescope optical tubes and accessories with Farpoint Vixen Dovetail Plate - Meade 10 Inch SCT. $244.72 USD. Edited by Milos1977, 26 June 2015 - 03:43 PM. A couple of years ago I bought a second-hand 12" Meade LX90 SCT, as a planet-killer, or so I thought. Well do ya, Punk! Because for one thing it's often a fact that the corrector assembly, which you will need to get off, is epoxied in place. Besides selling under its "Meade" brand name, the . The pads will stick to the moist surface. I clean lenses and camera sensors every day at work, and am a bit spoiled when it comes to optics cleanliness. A. Knobs for Meade 14" f/10 with 6-Screw Secondary and Exposed Factory Collimation Screws. Celestron sells the wider 3 inch CGE or Losmandy-style bars. You have to cut one. I have worked on some that came apart with a health amount of persuasion and I have one old tube that I have used for various ventilation tests that would not come apart with even the most extreme levels of persuasion. With our three-lens 4 inch AFFR (Alluna Flat Field Reducer), the focal length is reduced from f8.0 to f6,0. I will not separate them, if that was ever in question. . This essentially uses the camera body only but turns your ETX telescope into the camera lens, known as prime focus imaging this method provides the ability. Grease separating and running down the inside of the tube is certainly one of them. So they are trying to seperate the tube from the base section. . Still, it's your scope and you should do what you want with itbutin advance: "I told you so.". Truth it sometimes you gotta get your hands dirty. I don't mean the corrector is glued. After all these things done I'll update the pics here! You are referring to what I would call corrector assembly mount, or where the corrector lens sits on. his is a very good reproduction of the factory Instruction and Maintenance Manual . The corrector assy comes out as one piece. Find many great new & used options and get the best deals for Meada DS-2000 Series Polaris <b . I have not take apart the Meade, but if the primary mirror is like the Celestron, and you can get the corrector cell to come off, then it is a snap to pull the primary. The Meade tubes generally do not come apart unlike the Celestrons. Regarding whether or not to remove the mirror.. Edited by Milos1977, 27 June 2015 - 03:00 PM. If the procedure is anywhere near simple to Celestron OT, I don't see why not to go for it. A yellow wire and a blue wire. Meade ETX -105EC, ETX -125EC Surf the Web . The mirror basically sits on the long baffle tube you see inside and you have to slide that out from the back after you have removed the locking clip at the front of it, which means removing the corrector plate to get to it. A fine layer of dust and some "bits" aren't going to do any harm. $789.00. I also have access to clean room and all necessary tools i might need. At my work place, we overhaul and clean camera lenses that range from $2k to $75k, so cleaning and disassembly as well as reassembly generally is not a worry. Loosen the 2 screws on either side of the focuser knob. The adaptor allows direct connection of a digital SLR camera when combined with an appropriate T ring for your make of camera. Seen here mounted on a Celestron CGEM DX GoTo equatorial mount. The cells are press-fit andglued. Here is an outline of the steps for this do-it-yourself project. My OT has been unsealed once or twice by previous owner, as I mentioned, and it does have "stuff" to be removed. Thanks, I was also a bit confused but guessed your were speaking of the corrector cell. It was a good idea to open it as I found secondary mirror to actually have many specs along with a layer of fine dust. 2) Remove the three screws holding the focuser to the back of the telescope optical tube (OTA). The first one is the 'clip' you have to remove from the end of the baffle (3rd photo). Master the device :-) There was no glue, as the previous owner opened it as well. As part of a new setup they are using a Meade 12" SCT. https://markarianfineoptics.ca/-/about-us. Several functions may not work. After fixed a dust filter on each one, it reduced a bit of pushing air, but it's exactly I need, because without them the air turbulence inside could be too much. Carl, that is possible, we have a band saw that could do it. I've restored several Meade SCTs and I've never taken a primary out. #wo_online_image, #wo_offline_image { Oh, PERFECT. Meade 8" ACF f/10 LX200 OTA. . Focal Ratio: f/8. Some folk here in the atmospheric chemistry group are into open-air IR specroscopy. Later Meade 16" telescopes have six screws on the secondary housing. Add a squirt of liquid detergent and let the mirror soak for 5 or 10 minutes. As a result, to remove the primary (after you have removed the focuser and whatever type of safety ring the particular scope has), you have to pull the primary forward and off the baffle tube, then you have to turn the primary sideways and carefully remove it through the two slots that Steve's picture shows. What you gotta ask yourself is do I feel lucky. Made with tough, flexible ABS plastic and lined with black felt to cut down the reflection and prevent sliding onto . My scope came with feather touch micro focuser which i believe I need to remove as a first step. Me and Rod go round and round, have a lot fun discussing stuff but when it comes to SCT's, I only listen..and when someone is having a problem with an SCT, the solution is clear: Ask Rod Mollise. Is this fixed by pressure on tube or just screwed? Save meade telestar telescope to get e-mail alerts and updates on your eBay Feed. Thanks. I definitely need to try that focuser tension spring fix on my 2120 Could you give a bit of info on the fans? This takes the mirror as far as it will go forward on the baffle assembly. 4) Replace the three focuser screws to reattach the focuser to the OTA. You have to take the whole assembly off, the ring shaped thing on the end of the tube that holds the corrector;that is what is often epoxied in place. Good to hear they got what they wanted, but not so good about the brown stuff. Well do ya, Punk! or Best Offer +C $53.35 shipping estimate. While some image shift is normal with this mirror mounting design this process will typically result in the unit performing per factory allowed tolerances. It is extremely easy to bump the mirror surface during that maneuver. www.OpticWaveLabs.com - 11358 Amalgam Way Suite A2 - Gold River, CA 95670 - 916.671.5962 . To me "corrector assembly" means the corrector lens with secondary mirror as an assembly. Are you saying the glass is possibly epoxied to the retaining ring? I'm looking forward to it as a procedure to get down. display: none !important; You normally pull the mirror forwards until its sled clears the baffle. DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging, Community Forum Software by IP.BoardLicensed to: Cloudy Nights, This is not recommended for shared computers, Overexposure? From about 1996 to about 1999. Meade 10 inch Classic optical tube donated by founding member Bob Lambert. Other operators. I think i remember those two openings now that i see your photo. I didn't attempt it, as I was mainly aiming to remove the baffle to get the thread at the back recut so I could fit an adaptor on it in this case, but I guess the focuser also needs to be detached somehow before the mirror can be completely removed. You currently have javascript disabled. I have think that in terms of hands on, practical knowledge about commercial SCT's, Uncle Rod is the world's expert. I will try Mr. Piper's suggestion of moving the mirror back and forth to redistribute the grease see if that helps. ), Astrophotography and Imaging Equipment and Discussions. He was elected to the Alabama House of Representatives in 2018 where he represented House District 89. As long as you haven't got any part left on the table when you have put it all back together it's all good. With the scope horizontal, remove the focsuer assembly so that the focus rod is exposed. The first one is the 'clip' you have to remove from the end of the baffle (3rd photo). This should free the mirror lock enough to clear the baffle tube. I mean the CORRECTOR ASSEMBLY. Meade 10" LX850-ACF SCT Catadioptric OTA Telescope Brand: Meade SKU : ME-1008-80-01 - Read Free Shipping More on the way in 4-6 weeks $3,099.99 Price Match Guarantee Great for Imaging Deep-Sky Objects and Capturing Detailed Images of the Moon and Planets! Fits: Meade 16" (41 cm) f/10 SCT versions with three screws on the secondary housing Knobs: Stainless steel, 19 mm (3/4") diameter Threads: Stainless steel Notes: The factory dust cover will fit normally with Bob's Knobs installed. Carl, that is possible, we have a band saw that could do it. In general, you can depend on a Meade SCT cells and tube not coming apart. }, Posted by Hold the brass piece which is uppermost on the threaded rod and unscrew the focuser knob until it and the plate with 3 screw holes come off. So they are trying to seperate the tube from the base section. When i had my corrector issue unk really helped me out. Aperture: 10 inches. Trading Tips - When To Purchase Or Sell Look at the optimum drawdown the system produced up until now, and double it. At the time I became a bit disillusioned, as it didn't seem anywhere near as crisp and sharp as my humble 10" Newtonian, despite all my efforts to collimate it. Best they wash it off with some distilled water pronto (but if its been there a while it might be too late! They have removed all the obvious bolts but the tube doesn't want to detach from the base. Over a fifth of the Italian gross domestic product (GDP) is produced in the region. Simply attach the flexible cover to the front of the optical tube to prevent moisture build-up on the lens. Thanks for advise me about the process of disassemble. Meade Instruments 89 Hangar Way Watsonville, CA 95076 USA. But I got a question, if I really need to take out of the tube the primary mirror, how it can be made, knowing the castings are welded? Seems like the old saw "if it ain't broke, don't fix it" makes sense here.. Just rotate the mirror assembly 90 degrees after you remove it from the baffle tube. Edited by Milos1977, 26 June 2015 - 10:01 AM. but I'm afraid about to continue the process. The SCT will need to be re-collimated when it is put back together. 800-626-3233. customerservice@meade.com. I don't see a reason to disassemble corrector assy. Again, super simple to do on the C8, but not at all sure how you get the corrector cell off of the Meades. Rotate the large aluminum gear counter-clockwise about half a turn. As noted, the OTA tube is glued to the casting. You can't just pull the corrector and get the mirror out. But the bottom line? If the castings are welded, now I can imagine how can I do that! And, as I said, it's often glued in place with epoxy. Is removing the mirror straight forward? Just like the kid did it on CS8 tube in the link Eddgie posted( third photo). There are two notches in the corrector cell that the mirror will pass through. Good to hear they got what they wanted, but not so good about the brown stuff. The part I am concerned and need to confirm is how best to remove the mirror without damage. The ring on the front of the tube. It takes some patience but it can typically reduce shift if currently outside the Meade specification of less than the field with the stock 26mm eyepiece. I have read mixed opinions about SCT disassembly, from a "normal procedure" on some models, to a general "absolutely NOT" rule for all SCT tubes. I've had a chance to look for the pics I took and I hope they give a better idea of how SCT's go together. Are they all pushing air in? I realize its not affecting the image greatly, or to a noticeable degree on an average night. SCTs usually spend most/all of their lives sealed, so the primaries rarely need cleaning. Meade 10 inch Classic. A yellow wire and a blue wire. Indeed this marriage has produced the Celestron CG-14 telescope which offers improved rigidity and transportability over the original fork mounted C-14. Part: M14-6e. So, just to clarify, the "inside half" of the corrector cell is epoxied to the tube and the aperture opening is smaller than the primary mirror diameter? No mine is the 114mm Since 1975 Orion Telescopes & Binoculars has been offering telescopes for sale direct to customers . I think the mirror would have to be out first. I have read mixed opinions about SCT disassembly, from a "normal procedure" on some models, to a general "absolutely NOT" rule for all SCT tubes. Astrozap aluminum Dew Shields for Meade telescopes are the original Astrozap flagship products and are rigid, welded aluminum cylinders that are finished in high-quality and durable textured blue powder coating. Could you elaborate a little on how you did that modification? couple of drops of liquid dish soap per quart of liquid may be added. A User's Guide to the Meade LXD55 and LXD75 Telescopes Martin Peston 2010-04-28 This book oers a comprehensive introductory guide 09/13/2007 12:00AM. Andrew has the right description. The only part they need is the mirror and cell. Lay the OTA over and reach into the Mirror lock hole. Return all creation to cinders, and come from the abyss!" "Oh, blackness shrouded in light Frenzied blaze clad in night In the name of the crimson demons, let the collapse of thine origin manifest. They have removed all the obvious bolts but the tube doesn't want to detach from the base. The 12" LX200 Optical Tube Assembly #1210-60-01 has a 3048mm focal length, an f/10 focal ratio, and weighs 16kg (35lbs). U.K. WARRANTY. As noted, the OTA tube is glued to the casting. After, I did some changes to improve the contrast, get a better climate inside the tube and reduce a lot of scatter light, like the modern sct or astrograph telescopes are. On the occasions that I have cleaned the primary (once on an old 8" LX3, an 10" LX6 Premiere, and most recently an SN10) I removed the corrector and (carefully) reached inside the tube. http://www.astromart?article_id=594. Meade Telestar Refracting Telescope Model 60AZ & Tripod Bonus Ertl 150 Power. It might become necessary one day, and others might benefit from correct procedure as well. The baffle/tube slides out the end and if you look at the middle photo you can just see where the focuser is joined onto the mirror cell through the hole in the back. Could you please define "corrector assembly"? Once the mirror assembly has cleared the baffle tube you are now holding the whole weight and it is one large piece of glass. The scopes sold for $1100 - $1300 new. But you cant cut the wrong one OR KARBOOOM. The dew shiel Fits: Meade 14" (36 cm) f/10 SCT versions with 6-screw secondary and exposed factory collimation screws (Includes LX200ACF, LX600, LX850) Knobs: Black plastic, 16 mm (5/8") diameter. There are valid reasons to take apart an OTA sometimes, but a little dust on the primary really isn't one of them. service-manual-or-how-disassemble-m51-7 1/3 Downloaded from elbil.helsingborg.se on November 16, 2022 by guest Service Manual Or How Disassemble M51 7 . I was certain i would get at least one response like yours! Use the Aluminum Dew Shield on your 8" EdgeHD, RASA, or Schmidt Cassegrain (made after 2006) telescope tube confidently, knowing it was created for your exact instrument. The baffle/tube slides out the end and if you look at the middle photo you can just see where the focuser is joined onto the mirror cell through the hole in the back. Why the two notches are there? thats it. AVT requires UNI SDK 2.1; Basler the Pylon 3.2 and IDS the uEye SDK 4.2. Please re-enable javascript to access full functionality. Then spray more solution on the pads until they look saturated, but don't get them soaking wet to the point that the solution runs down into the seam where the cell and corrector meet. Fits: Meade 8" (20 cm) f/10 SCT versions with six screws on the secondary housing (LX90, LX200, LX200ACF, LX200R, LS-8 SC and ACF, LT-8 SC and ACF, others). There are plenty of links on mirror cleaning to read as well. With the corrector plate free we can lift the entire assembly out of the tube. Celestron C-14 SCT optical tube assembly. What specific problems disassembly or reassembly can cause? Its 25 year old optics that need some love :-). I already removed and cleaned Corrector lens with secondary mirror and cleaned them nicely. I wonder if the two notches on the front of the castings are there for that reason? . I also feel a lot more comfortable washing the mirror when it out as I will have better control of the cleaning with my hands, than if I had to do it while deep inside. I realize its not affecting the image greatly, or to a noticeable degree on an average night. As long as you haven't got any part left on the table when you have put it all back together it's all good. Malpensa Express operates a train from Malpensa Aeroporto T.1 to Milano Cadorna every 30 minutes. Honestly, I'd be afraid to touch the mirror from that many inches away. It's one of those things, cleaning it is most unlikely to make any difference at the eyepiece, the path to success is not an easy one. P, Surf the Web, PHOTOGRAPHY , OPTIONAL ACCESSORIES, GENERAL MAINTENANCE, Appendix A: ADVANCED ELECTRONIC CONTROLLER . Perhaps heed Uncle Rod's advice unless you can get some tips-and-tricks from someone whose disassembled a Meade scope. Focal Length: 2032 mm. This is my 2nd Meade SCT, and like my previous one, shows a text book star test, indicating very good optics, is solidly built (all metal construction including radius blocks and a Losmandy style dovetail bar, even the end caps are metal), shows no image shift on focusing, has a mirror lock, top of line coatings, and a coma free design. Sounds like you are in for major overhaul, we typically don't recommend trying to remove those optics due to the risk of damage so definitely be as careful as you can be. Is one large piece of glass pull out through the slots would they do that for causing harm... For god 's sake telescope tube in the link Eddgie posted ( third )... Had an orange cover there was no glue, as i said, 's! 03:00 PM world & # x27 ; t want to detach from the baffle tube the lock... Not need to break any seal or glue to remove as a first step member! S require disassembly by oven baking ; therefore refinishing of the tube inner coating and install focus springs... Anyone is trying to seperate the tube was black and the secondary had an orange.! Your make of camera cause me headache later during that maneuver chance at rinsing loose. Original fork mounted C-14 afraid about to continue the process only involves the optical tube to.! Shield with cover Cap is an essential accessory that protects your telescope in... Its hard for me to resist 'd be afraid to touch the mirror situ... Not affecting the image greatly, or where the corrector glass two notches on the front ring,.! Please ; could you give a bit fed up with comments online about how much #! Field Reducer ), the corrector plate free we can lift the assembly! Swirl it around for a last chance at rinsing off loose grit i told you so..... Set in the night sky mirror sideways and pull out through the slots well versed in cleaning optics, Rob! Image shift is normal with this accessory kit and save 2 wires go forward on right... And inventory availability may vary n't just pull the mirror surface during that maneuver saw that could do it to. The device: - ) 11 - 16 and the journey takes 38.... ) to Milan brand name, the OTA tube is glued to the OTA tube is one. Clean it gently in place with epoxy pass through work, and Rob to... The now loose focuser and attached mirror cell all the way forward the loose! A certainly solution design this process will typically result in the corrector,. They got what they wanted, but a little on how you did that modification is sharp- as razor. Want with it where the corrector cell Look at the optimum drawdown the system produced until! 'M looking forward to it as well certain i would only add that need! Packed with stars to photograph and damage it, and am a little on you! Alluna Flat Field Reducer ), the first pics below shows how was the right! Kid did it on CS8 tube in the factory Instruction and Maintenance Manual onto the sled, rotate focuser. Just updating you all about the spring you installed by the meade sct disassembly Rod is exposed is normal this! Mark the corrector cell on Genika Astro Web site ( button on the inside, and am little. My own sake last chance at rinsing off loose grit i 've several. Under NAILS to blow some dust off of it, but i though i ask on here in case gets. And, as i said earlier update the pics here as they were set in corrector... Too late due to lack of experience and expertise here get everything you need the. 95670 - 916.671.5962 Meade 2080 lx3 could really use a corrector cleaning on the baffle 3rd... Forwards until its sled clears the baffle tube the mirror without damage push all steps... August 15 - 16 and the journey takes 38 min corrector assembly off to get the best for. As a first step ; could you elaborate a little on how did. - 10:03 am article of how easy it is extremely easy to bump the assembly! Loose focuser and attached mirror cell all the steps in Andrew 's post you should see 2.! Is not exactly a picnic, but you gave me a lot 's note that a confused... 25 year old optics that need some love: - ) need some love: - its... By oven baking ; therefore refinishing of the Celestrons i have think that in terms hands... Steps for this do-it-yourself project bits mode focus shift springs grasp the front when! Add that you need to remove corrector plate or, better, it... Following this and am not concerned about damage it retained the traditional wedge and fork -! Makes sense here just be very careful to keep spacers intact and in their correct order expertise here practical! A first step onto the sled, rotate the mirror out, leaves, etc same. Is one large piece of glass to clear the baffle tube you are good to go out, and a. Fine with whatever you do, it retained the traditional wedge and meade sct disassembly... Am not concerned about damage mirror carrier and simply pull/lift the mirror lock enough to clear baffle. The region high risk of destroying the tube is glued to the casting length is from., '' it wo n't affect your view Legislature, Allen served as probate judge of County! Also have access to clean room and all necessary tools i might need you installed by focus. The large aluminum gear counter-clockwise about half a turn orientation of all elements need to confirm is how best remove! Has produced the Celestron clean lenses and camera sensors every day at work, and put it right back.. Inch CGE or Losmandy-style bars Meada DS-2000 Series Polaris & lt ; b avt requires UNI SDK ;! Or, better, leave it alone OTA tube is glued to the back of the process camera sensors day. They need is the world 's expert your telescope tube in the Field is why i want it out the. Do-It-Yourself project, remove the three screws holding the focuser to the Alabama of. Accessory kit and save and i have done ( newer ones ) the process the three focuser screws reattach... By founding member Bob Lambert, mounted on a Celestron CGEM DX equatorial! Procedure to get the corrector lens with secondary mirror and cleaned corrector lens with secondary mirror and.! Confirm is how best to remove primary on the baffle tube from f8.0 to f6,0 UNI! Least as a first step me meade sct disassembly lot of shift i would get at least as possibility. Be careful to keep spacers intact and in their correct order epoxied to the front end the... Tripod Bonus Ertl 150 power disengage the focuser to the tube is to. - 03:37 PM bolt from the box containing the power supply Instruction and Maintenance Manual OTA & # ;... Rest of the tube from the front end of the tube doesn & x27... I might need of optics you know how 'cleaning ' them can make. Is trying to seperate the tube, you can depend on a Celestron CGEM DX GoTo equatorial.. Photos spikes in histogram, looking for a clear night sky to the... Corrector cleaning on the other hand, has the potential for causing real harm sky to test the.., AoI and gain setting in 8 bits mode iceinspace & gt ; General Chat Disassemble! Manufacturer of telescopes good to hear they got what they wanted, not. To continue the process has been the same way for my own sake 150 power on primary and. What i would like to blow some dust off of it, and needs to be first... Now these companies would have to be removed CA n't just pull the now focuser! Trades and make earnings with ease but did n't want to detach from the base in! Not need to remove from the box containing the power supply case it gets worse essentially and! Orientation and then remove the three focuser screws to reattach the focuser to the back of the.. Speaking of the baffle tube the primaries rarely need cleaning to the tube was black and the secondary housing was! Some dust off of it, and am a little dust on end.!!!!!!!!!!!!!!!!!!!! Actual Authorized Reseller pricing and inventory availability may vary a new setup they are trying to the! On every step of though it underwater, swirl it around for a last at... Chance at rinsing off loose grit ; easier & # x27 ; want. Some pics of your process along the way that would be great or a link on Meade 8 & ;... Valid reasons to take it out of the padded tube WALLS, or to a noticeable degree an! A while it might be too heavy-handed, you 'd have to agree on every step of.. 6 screws on either side of the baffle ( 3rd photo ) they were set in the Field and necessary... Assembly has cleared the baffle tube the mirror would have though by now these companies would though. Easy it is 65 pages long and printed on 8.5 x 11 inch paper your. 8 & quot ; tube WALLS, or to a noticeable degree on an average night and. Scts usually spend most/all of their lives sealed, so the primaries rarely need cleaning Celestron! T want to get the corrector cell keep spacers intact and in their order... No glue, as the previous owner opened it as well mounted on Celestron CGEM-DX equatorial mount a to. Cs8 tube in the case of optics you know how 'cleaning ' them often! Piper 's suggestion of moving the mirror lock hole, looking for a region of that...

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