Has this happened to anyone else?
I am now starting to think this is a stupid design. My Celestron 90 is built more like an
Does it have an exposed O ring?
There is nothing exposed about the MK66. It's built like a tank. Never subjected it to any thermal stress like solar work either.Ylem wrote: ↑Sun Apr 12, 2020 11:11 pmDoes it have an exposed O ring?
At some point I would think a 2mm O ring is gonna break down.
Mine has had a fair amount of solar work, so that may have lead to the condition.
It dry rotted, it basically crumbled in my hand.
Guess I could find one on the interwebs, and recollimate.
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