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So what is the original complaint with the focuser as supplied on the GS dob ?
I improved mine greatly by dissassembling and cleaning out the gunky "glue grease". Neither metho or kerosine would disolve it, but paint thinner did.
I then used a small amount of automotive grease and tweaked the screws on the bottom plate.
The motion is much easier and smoother now, with just a hint of binding at a certain spot in the travel.
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