My CGEM with the RA axis locked in place while I manually spin the DEC axis. The counterweight shaft wobbles because of the locking nut, without the locking nut the wobble disappears. Heres a link to a video of the shaft only and no wobble. https://www.youtube.com/watch?v=8qnR5aSt56o&list=UUBI0oopIg4-zmKRtW0s9r4Q&feature=c4-overview
https://www.cncmachingparts.com/
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