Orion 10019 XT10i, 10026 XT6i, 10020 XT12i, 10018 XT8i instruction manual Correct Tension pads

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a.

b.

Figure 4. To connect the baseplates, tilt them only slightly, as shown. Do not place them on their side. (a) Use one wrench to hold the hex nut steady (b) while turning the other end of the azimuth axis screw.

6.Place a fender washer (H) onto the azimuth axis screw (I). Then push the screw up through the hole in the ground baseplate (A).Then slide the encoder disk (J), flat side down, onto the azimuth axis screw.

7.Place the brass bushing (F) onto the azimuth axis screw

(I) so that the wide end of the bushing is closest to the encoder disk (J). Seat the bushing onto the encoder disk so that the registration feature on the bushing goes into the hole in the encoder disk. You may need to move the encoder disk around on the azimuth axis screw a bit for the bushing to seat properly.

8.Carefully position the top baseplate (D) over the ground baseplate (A) and lower it so the brass bushing (F) goes into in the center hole of the top baseplate. Place the remaining fender washer (K) onto the shaft of the azimuth axis screw, then thread the hex lock nut (L) onto the end of the azimuth axis screw and tighten it finger tight, for now.

9.To tighten the azimuth axis screw (I) and hex lock nut (L), tilt the assembled Dobsonian base at a slight angle to lift the ground baseplate off the ground. Now, with one wrench (or pliers) hold the head of the azimuth axis screw still while turning the hex lock nut with the other wrench. Figure 4 shows this being done. Tighten the hex lock nut just until the top fender washer is no longer moving freely,

Correct Tension pads

Bearing cylinders

Figure 5. Attaching the bearing cylinders.

Encoder connector board

Screws

Figure 6. Attaching the encoder connector board.

then tighten the hex nut a quarter turn beyond that. This ensures proper spacing between the encoder disk and the azimuth encoder board.

10.Attach the handle (M) to the front brace (B) with the two handle mounting hex-head screws. Place one washer on each screw, then press the handle against the front brace (the end of the handle bearing the Orion logo should be up). Then thread the screws from the inside of the base into the handle until tight using the supplied crescent wrench.

11.Line up one of the altitude bearing cylinders (N) with the inside of one of the four bearing cylinder holes on the side panels. Push a bearing cylinder screw through the side panel and thread the bearing cylinder onto it (Figure 5). The beveled end of the cylinder should be farthest from the side panel. You can tighten the cylinder by hand or, if needed, with the supplied 4mm hex key. Repeat for the remaining three bearing cylinders.

12.Attach the encoder connector board to the side panel. Place the board against the side panel so that the modular jack fits into the square-shaped hole and thread four encoder board mounting screws through the connector board and into the predrilled holes in the side panel until tight (Figure 6).

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Contents Orion SkyQuest XTi SkyQuest XT8 IntelliScope Unpacking Table of Contents Parts ListAssembly of the Optical Tube XT12i only AssemblyBox #3 XT12i only Primary mirror and cell Page Loosely attach the front brace B to the two side panels Assembly of the Dobsonian BaseCorrect Tension pads Placing the Optical Tube on the Dobsonian Base Installing the Vertical StopInstalling the Eyepiece Rack Installing the CorrecTension Friction Optimization SystemAltitude Bearings Bearing cylinders Inserting an Eyepiece Installing the Finder ScopeSetting the Altitude Tension Level Using Your TelescopeAltitude and Azimuth Motion Aligning the Finder Scope Focusing the TelescopeFocusing the Finder Scope Viewing with EyeglassesTube Balance Aiming/Pointing the TelescopeMagnification Use of 2-Inch Eyepieces XT8i, XT10i, and XT12i onlyPage Collimation Cap and Mirror Center Mark Alignment Collimation of the Optical SystemPreparing the Telescope for Collimation Adjusting the Primary MirrorAligning the Secondary Mirror Astronomical Observing Star-Testing the TelescopeSelecting an Observing Site Eyepiece Selection Seeing and TransparencyCooling the Telescope Let Your Eyes Dark-AdaptStars MoonSun PlanetsIntelliScope Computerized Object Location Cleaning Eyepiece Lenses Care and MaintenanceCleaning Mirrors SkyQuest XT6i IntelliScope SpecificationsSkyQuest XT8i IntelliScope SkyQuest XT12i IntelliScope SkyQuest XT10i IntelliScopeOne-Year Limited Warranty

10019 XT10i, 10018 XT8i, 10020 XT12i, 10026 XT6i specifications

The Orion XT series of telescopes, including the XT12i, XT8i, XT6i, and XT10i, are highly regarded for their quality and performance, making them popular choices among astronomy enthusiasts. Each model in the XT line features a Dobsonian design, renowned for its simplicity and ease of use, allowing users to enjoy stargazing without the complexities associated with other types of telescopes.

Starting with the Orion XT12i, this model boasts a 12-inch aperture that delivers exceptional light-gathering power, ideal for deep-sky observations. Equipped with the IntelliScope computer navigation system, users can enjoy the convenience of locating over 14,000 celestial objects with ease. The oversized 2-inch focuser accommodates a range of eyepieces and accessories, while the solid, sturdy base ensures stability during observation.

Next is the Orion XT10i, featuring a 10-inch aperture designed for delivering stunning views of galaxies, nebulae, and star clusters. Like its larger counterpart, the XT10i also comes with the IntelliScope system, allowing for simple object location. Its compact design makes it an ideal choice for both backyard astronomy and portable stargazing trips. The XT10i includes a rich set of accessories, including a 1.25-inch eyepiece, to enhance the observing experience.

The Orion XT8i brings a 8-inch aperture to those seeking a balance between performance and portability. This telescope offers impressive light-gathering capabilities while remaining lightweight enough for easy transport. The IntelliScope feature enables users to navigate easily between celestial objects. It is an excellent choice for both beginners and experienced users looking for a versatile telescope.

Finally, the Orion XT6i features a 6-inch aperture, making it an optimal choice for those new to astronomy. Despite its smaller size, the XT6i still offers excellent views of the night sky and is highly portable. With the IntelliScope system, users can quickly find and explore various celestial objects. Its user-friendly design and setup make it a perfect introduction to the world of astronomy for novices.

In summary, the Orion XT series of telescopes presents a diverse range of options suitable for astronomers of all experience levels. They combine innovative technologies like the IntelliScope navigation system with solid construction and impressive optics, ensuring memorable astronomical experiences. Whether you're delving into deep-sky exploration or enjoying casual stargazing, the XT line has a model that fits your needs.
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