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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.

https://youtu.be/hoxBkrD4xCo

Cheers,

Peter.
GSO RC10 Truss, Meade S5000 127, TMB 105, TS65 Quad, Solarscope SV50, Daystar Quark Chromosphere 'eyepiece' filter, Canon 15x50 IS Binos, various camera lenses.   Gemini G41 mount with Pulsar controller. EQ6 Pro mount, EQ3-2 mount with DS Autostar. Star Adventurer mount, QSI 683wsg, SX AO, Art285 (beta), Canon 350D (modded), Canon 700D, GPCAM2 (colour), GPCAM2 (monochrome), LE Vesta Pro, Toucam.

 

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