I've heard of floor roller rotating Obs but I think you would need to make it a permanent installation. The scope would have to sit on a flat isolated base. If the scope is on the same floor platform as the viewer, even 3/4 ply, it will move and flex.
My plan would be concrete base with sealed to ground low height inside roller wall ( 100mm maybe ) that acted as the track and also kept water out. Easy to motorise as well. But I'd be having an EQ mount on an isolated pier block rather than a DOB.
Bit more work obviously..
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