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Ok. Turns out that the steel pin that controls the micro focus adjustment is buggered. Perhaps some grit or something got in there and damaged where the pin turns the ball bearings which in turn rotate the focuser.
There is a small groove where the ball bearing sits in, and that groove wasn't smooth anymore and that was giving me the "gritty" feeling. I smoothed it out with a round file, a little at a time, but in the end it the groove is to big so the ball bearings don't have a tight grip on the outer casing so it wont turn the assembly.
The non micro focus now works fine and is very smooth but a want the micro focus to work.
So there is now an ad in the wanted section if anyone can help.
Thank you
Jeremy
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