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Hi Marc
Not sure about rotating the secondary mirror, how would that happen? I'm guessing if you took all three screws out at the same time then there might be an issue, but I did it one at a time. Is there a way to tell if the secondary has moved from where it should be? The scope doesn't rattle when I shake it vigorously. Joking. JOKING!!!
On over-tightening, I tested it on a star earlier. I tightened the knobs until they were starting to feel hard to turn, then moved them in the opposite direction about three turns until they were in the middle of their travel (hopefully). Looked in the scope for my star again, found it and no difference to the shape, still looks like someone sliced off the side of my doughnut.
Should I try removing bob's knobs and putting the original screws back in? I'm guess that won't make much difference.
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