I am new to the science of collimation. I have done quite a bit of reading on collimating, and even bought a great book on telescope optics specifically on star testing. I have received a set of Bob's Knobs for my 9.25. I am not sure If I did something wrong during the installation process, or if this is normal. I installed the knobs taking out one screw at a time and inserting one knob at a time using the spacers that came with the knobs. I know that from installing the knobs I knocked the scope completely out of collimation. I was using a star on a night I thought was fair seeing conditions just to get the scope back into decent collimation. While I was playing with the knobs I was looking through the eye piece at the same time. I noticed that as I turned the screws the star in the FOV would move out of the view. Now I was under the impression that only the shape of the circles around the star would change shape, not shift around. I am worried that the secondary is to loose or something. Is it normal for the star to shift around(or even move completely out of) the FOV while turning the secondary mirror screws? And I have another question. After I got all the star rings to be as Concentric as I possible could, I noticed that one screw was pretty loose, and the spacer was not even touching the front of the OTA. Should all the screw be fairly tight when collimating? I am worried I may have messed up the secondary when I was installing the Knobs, plus I am paranoid in general by nature. I am pretty darn new to this stuff so I may have done a bad job trying to explain what it is I have questions about. Any help would be very cool.
John
BTW I have been to multiple web site and links that I got from this web site, and google. All give good descriptions on how to collimate, what to expect to see when your scope is in and out of collimation, but I can't find anything about the questions I am asking.
