Orion 10018 XT8i, 10026 XT6i, 10020 XT12i, 10019 XT10i Assembly of the Dobsonian Base

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C

 

N

 

 

B

KL

M

 

D

 

E

G

F

A

J

 

 

H

 

I

Figure 2. Exploded view of the XTi IntelliScope Dobsonian base.

Assembly of the Dobsonian Base

Refer to Figure 2 during base assembly. The base need only be assembled once, unless you disassemble it for long-term storage. The assembly process takes about 45 minutes and requires, in addition to the supplied tools, a Phillips screw- driver, and two adjustable crescent wrenches. You can substi- tute a 7/16" crescent wrench for one of the adjustable cres- cent wrenches, or use a pair of pliers.

When tightening screws, tighten them until firm, but be careful not to strip the holes by over-tightening. If you use an electric screwdriver, do final tightening with a standard screwdriver to avoid stripping.

1.With a Phillips screwdriver, screw the plastic feet into the underside of the ground baseplate (A) using the self-tap- ping wood screws provided. Insert the screws through the feet and thread them into the predrilled starter holes.

2.Loosely attach the front brace (B) to the two side panels

(C) with six of the base assembly screws in the predrilled holes. Use the 4mm hex wrench to tighten the screws. The

Spacer washer

Figure 3a. The spacer washer goes between the azimuth encoder board and the top baseplate of the Dobsonian base.

Encoder board

 

mounting screw

Azimuth encoder board

Figure 3b. Installing the azimuth encoder board. Line up the large hole in the encoder board with the central hole in the top baseplate.

side panels should be oriented so the SkyQuest IntelliS- cope labels are facing outward. The front brace should be oriented so the threaded insert is facing the interior of the base. Do not completely tighten the screws yet.

3.Connect the two side panels (C) with the front brace attached to the top baseplate (D) with the remaining six base assembly screws in the predrilled holes. The side of the baseplate with the pilot hole near the square-shaped cutout should be facing downwards. Tighten all six screws firmly.

4.Tighten the six side screws installed earlier.

5.Attach the azimuth encoder board (E) to the underside of the top baseplate (D). Insert the encoder board mounting screw through the circuit board and install the small spacer washer (G) over the screw (Figure 3a). Insert the modular jack on the encoder board into the square-shaped hole in the baseplate and align the encoder board so that the small slotted hole in the board lines up with the predrilled starter hole, and the large hole lines up with the central hole in the baseplate. Thread the encoder board mounting screw into the predrilled starter hole with a Phillips screw- driver and tighten until just tight (Figure 3b).

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Contents Orion SkyQuest XTi SkyQuest XT8 IntelliScope Table of Contents Parts List UnpackingAssembly Assembly of the Optical Tube XT12i onlyBox #3 XT12i only Primary mirror and cell Page Assembly of the Dobsonian Base Loosely attach the front brace B to the two side panelsCorrect Tension pads Installing the CorrecTension Friction Optimization System Installing the Vertical StopInstalling the Eyepiece Rack Placing the Optical Tube on the Dobsonian BaseAltitude Bearings Bearing cylinders Installing the Finder Scope Inserting an EyepieceUsing Your Telescope Setting the Altitude Tension LevelAltitude and Azimuth Motion Viewing with Eyeglasses Focusing the TelescopeFocusing the Finder Scope Aligning the Finder ScopeUse of 2-Inch Eyepieces XT8i, XT10i, and XT12i only Aiming/Pointing the TelescopeMagnification Tube BalancePage Alignment Collimation of the Optical System Collimation Cap and Mirror Center MarkAdjusting the Primary Mirror Preparing the Telescope for CollimationAligning the Secondary Mirror Star-Testing the Telescope Astronomical ObservingSelecting an Observing Site Let Your Eyes Dark-Adapt Seeing and TransparencyCooling the Telescope Eyepiece SelectionPlanets MoonSun StarsIntelliScope Computerized Object Location Care and Maintenance Cleaning Eyepiece LensesCleaning Mirrors Specifications SkyQuest XT6i IntelliScopeSkyQuest XT8i IntelliScope SkyQuest XT10i IntelliScope SkyQuest XT12i 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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