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Author Topic: Dome Motorisation  (Read 170 times)

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Offline petevasey

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Re: Dome Motorisation
« Reply #45 on: 21:46:44, 17 March, 2017 »
This guy gave me an idea with his toothed belt drive.  For a few ┬ús (I already have suitable Aluminium bits for a frame) I can manage 4:1 or slightly better reduction within the diameter of my proposed acorn wheel which I would bolt direct to the larger belt wheel so wouldn't need a particularly strong main shaft.  A bit Heath Robinson although I would make bronze bushes for the main shaft.  Or even go posh with small ball races, but hardly necessary for such a low tech application.  Might be the best solution in the long run.  Even with my 112 RPM motor I'd get down to around 25 RPM loaded.  So should manage 5 rpm or less with PWM and probably plenty of torque.


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