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    mike.evans.za's Avatar
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    Default V or Toothed Belt and Pulleys for Drive?



    Hi.

    Anybody here ever considered using belt drives? It is easy to make a pulley ( V shape) from just about any material, like wood, plastics or steel. And also there is NO backlash. It will also isolate the vibration from motor if motor is on rubber mounts. Well this is my thoughts on this. So anybody here ever used them on a motorized mount?

    Regards.

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    tilbrook (10-11-2011)

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    Default

    Hi,

    I have tried using belts and pulleys for drive on my 16"telescope. Initial tests on the bench looked promising, until the scope was complete. It didn't seem to matter how tight the belt was it would drive with a jerking motion.
    I gave up on that, and went to a chain drive, which proved better but was let down by the tranfer box I was using. It had too much back lash, so I ended with a direct friction drive onto the R.A. wheel, this seems to work the best for my setup.

    Cheers,

    Justin.

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    Default

    Toothed belt is by far the best but you must have smooth bearings!
    NEQ6 Pro Mount.
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    8" emc, Canon 450D (Rebel XSi) 18-55 and 75-300 lenses. Canon 70DW 18-135 USM and sigma 70-300. 4000 lens kit.
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