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I did this mod on a single speed skywatcher refractor but in the end I'm not sure it made much difference. The focuser would still roll out if it was loaded with a heavy 2" eyepiece, whereas the gearing of the two speed focuser can hold more weight.
If the focuser tube is slipping against the shaft or if there are depressions (bumps) in the focuser it might be worth doing this mod.
Last edited by casstony; 19-01-2011 at 02:59 PM.
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