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Focuser mechs
I have an Orion EON 800mm refractor, that has had some focuser slip issues.
Looking at the focuser shows a small bar being rolled along a flat section on the tube. Sometime weight and position makes it slip, even with just a 450d an a few tubes on the end.
Is there a replacement focuser that has a solid, say rack and pinion, with very fine adjustment? and a good solid lock down mech.
Send links or thoughts, thanks in advance regards, Alan.
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