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Dob go-to jerky in one axis
Recently noticed that my 14" Dob go-to mount is very jerky when moved up/down. Not as smooth as it used to be or when moved left/right. What could be causing this? I've had it for about 5-6 years, and used infrequently. Powered by a lighter socket plugged into a 240-12v converter, which is plugged into the mains. Not sure if that's relevant info..
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