What's new here?

Posts tagged ‘Intelliscope’

Assembling the Orion SkyQuest XT8i Intelliscope Dobsonian Telescope – Part 1

A bit of a disclaimer here. This is going to be as much of ‘what’s wrong with the Intelliscope’s instructions as much as it will be a  ‘how to’ for helping set-up your Intelliscope.

005First a little background: Dobsonian telescopes, with their large mirrors and lazy-susan bases have been around for ages but it wasn’t until Orion released their SkyQuest XT line in the late 90’s that they became popular. Previous Dobsonian telescope models had issues with balance and were trick to keep on target.  Odd solutions like weights added to the outside of the telescope were clunky and awkward for basic users. Orion solved the issue by adding the CorrectTension system, which was a spring that held the optical tube of the Dobsonian to the base. It was a simple and elegant solution and it worked very well. The line got excellent marks and was considered one of the best Dobsonian lines on the market . At first Orion just sold a 6″ and 8″ model, then added a 10″ model, a 4.5″ kid’s model, and later a 12″ model.

For several years, Orion pretty much dominated the Dobsonian Market, but when imitators cropped up they decided to improve their classic Dobsonian by adding a computer guidance system (not a computer control system like many GoTo telescopes). Here you would get the advantages of having a computer system to help you find objects. It would not require batteries for any motors and the observer would be the person moving the telescope, using a hand controller to guide them.

The whole system using a pair of magnetic encoders, and development was tricky. The initial plan was to have the Intelliscope completely replace the original Dobsonian line where it would be sold with and without the controllers. This didn’t happen due to some development issues. Once the Intelliscope was ready it was sold both with and without the controllers, but after a few years it was sold strictly with the Intelliscope controller system. This unfortunately left some ‘development scars’  that will show up from time to time as we assemble the telescope. (more…)