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Hi Tim,
Thanks for your comments. I should update where my scope is at since this post was resurrected. I have nearly finished 'bartelising' it. Bojan says it looks ready to test under the stars but the weather has been terrible lately so I haven't had a chance.
I went with the epoxy gears solution. At this stage, no encoders are fitted but I have bought a pair and intend to install them when I have the rest of the system ready. Strictly speaking they are not necessary in a geared system as you say. I want them mainly for public star parties where the scope can easily get knocked out of position.
I have been following your articles about your tri-dob. It looks great! Could you explain a little more about the cable drive on the altitude. I have read about cable drives but can't visualise how they work.
Regards,
Rod.
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