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Old 29-07-2009, 07:24 PM
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PCH (Paul)
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Join Date: Feb 2007
Location: Perth WA
Posts: 2,313
I agree, it is a piece of cake.

Although I did take the mirror cell off the rear fan assembly by means of the six (black) screws reachable from inside the lower half of the dob.

Putting it back was fairly easy too. Be aware you will have to roughly align the primary, using the adjustment screws on the rear fan face, to get the secondary approx central when you look through the focuser. Mine was way off at first, and as it was my first time (cleaning the mirror that is) I had to think twice before realising why the secondary appeared so off-centre.

But that done, it collimated nice and easily.

Cheers,
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