I have a z focusser on my ASA, a few weeks ago I want to unscrew the camera from the focusser tube,
because it was firmly attached at the focusser tube I use force to unlock the camera.
The result is I have now a sticky Z focusser; when I click '0,1mm move' once (+ or -) at the OK3 software nothing happened but the I do hear the motor!,
a second click '0,1mm move' still nothing, only after 0,3mm/ 0,4mm of movement on the software the focusser tube is moving a large amount.
For tiny movements of 0,02mm i must click 10 times or so before the focusser actualy moves.
I can check focus with 'Life-view' on the canon camera (if there is a clear night).
I know you can make adjustments with the two brass screws on the Z focusser housing, But How?
(Or send the focusser to ASA, but then I receive a large repair bill and cannot use the scope for a couple of months).
What I already have done is make a tiny locking screw in the focusser tube; no more fixed cameras!, and grease the ball bearings with Dupont Krytox teflon grease.