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Skywatcher 120 Achromat -focus knob removal?
I'm trying to add a focuser motor to a SW 120 which has a rack and pinion focuser and knobbly knobs (!)
I can't seem to find any way of removing the knobs from the shaft.
No small hidden screws and they don't seem to want to unthread from the shaft.
Any ideas?
Has anyone had success on a similar focuser?????
Thanks.
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