James feltt Posted September 19, 2021 Share Posted September 19, 2021 When I’m slewing my lx-90 16 inch scope about the RA axis, it starts jerky motion as it approach the horizon and reverses direction. Some times over and over again. Is this back lash and what can I do about it? Link to comment Share on other sites More sharing options...
barbulo Posted September 19, 2021 Share Posted September 19, 2021 Backlash is the mechanical lag between when the gears start to move and when the scope effectively starts to slew. I am not familiar with your mount, but the movement you mention could be caused by some sort of protection or limitation that prevents the scope from aiming below the horizon. Let's leave it to the experts to assess. Link to comment Share on other sites More sharing options...
James feltt Posted September 19, 2021 Author Share Posted September 19, 2021 Thanks. It doesn’t get that close to the horizon. I can not slew very deep into the western skies. Not really functional. Will try repositioning the weights eastward as I’ve seen on other posts and adjust backlash settings on my control. Will try contacting Meade again next week. Getting pretty discouraged. Appreciate any other ideas anyone might have. Link to comment Share on other sites More sharing options...
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