Happy owner of--
A Mag 1, 12.5 inch Porta Ball
A Dual Axis Equatorial Platform
A PST Double Stack
Quote:Clever way to center mechanically.
Celestron C14 Starbright/Fastar Sky-Watcher 180 Mak AT72ED RED COLOR Losmandy G-11 + DSC
Quote:So it is confirmed that the corrector center bore instead of the edge should be eccentric to the optical axis?Steven
Quote: Interesting work Sedat. The use of a mechanical extension is clever. Seems gravity might be a problem, was the centering done vertically?
Quote:I recommend backing off the corrector centering set screws after the retaining ring is installed. It does'nt take much to stress the corrector plate.
Quote:I still wonder how good mechanical alignment is and how important this all is especially regarding variations in manufacturing and testing.
Quote:By the way, English is not my native tongue, so if something is not clear to you please make sure you ask me again and again until you are satisfied.
Quote:In the quest for perfection, there is also a possibility that the primary mirror may not be center to the baffle. Any though on this?Steven
"A telescope is either good or cheap, not both" - but sometimes you get lucky!
The mirror was very well centered as I said on the first page of this post:
"When I designed the tool, I assumed that the mirror of my C11 Edge HD was precisely centered on the baffle tube. Luckily it was. I have also verified whether the center cavity of the baffle tube was concentric with the outer diameter. Positive again."