Quote:
Originally Posted by pmrid
I'm thinking about installing a mirror-lock (anti-flop) collar on it which will necessitate removing the corrector so the two jobs can be done at the same time.
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I had a 3 point mirror lock but since I have changed the mounting of my primary I have zero shift or tilt when focusing up and down the baffle.
I always knew that the baffle tube was machined to extremely tight tolerances. I measured the depression in the middle to be 0.001th of an inch. This acts as a grease trap so you don't shave all the lube dry when inserting the mirror back in.
Last night collimation and viewing confirmed that mirror flop in those scopes (if any) must be caused by weight shift and compression in the rubber and cork that binds the glass to the baffle. I'm now convinced of it. As I say I have now zero flop and I don't use my mirror lock anymore.
If you intend to make a mirror lock I'd recommend doing one lock for the focusing arm rather than 3 bolts at 120 degrees holding the mirror like I originally did. It'll save you some material and a lot of work.