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I concur! It wasn't doing this on the first 3 outings. Two days ago it was only DEC up that was jerky. This morning I powered on and both RA directions were jerky until I set backlash to zero. I wonder if there is an issue with problems caused when the motor housing were briefly clunking? Again setting backlash to zero fixes this, but I hear 18 is the factory default setting.
I hope this isn't a sign that they should be at 18, not zero, but some damage was done during motor housing clunks. I presumed real damage would be aborted as there must be a friction clutch which gives when the scope tries and impossible (blocked move).
Sigh, just one more thing to worry about.
Celestron say now they can't recreate the problem, have never heard of it, say the scope would be in a contorted position to view anything if it was used like this (fully agree there!) and don't know why it occurred and have asked for pictures. So I've sent them some and reminded them its the slew route, not the slew destination (well ultimately that too) that is trouble number 1. I will await their reply tomorrow.
Meanwhile I'm keen to get some clear viewing and try again to see exactly how my fix holds out for viewing experience five!
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