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  1. larbar

    Large gear ratio

    hi all. Great response and really helpfull replies. Currently out of office for christmas so will be back in the new year with some feedback. again thanks all.
  2. larbar

    Large gear ratio

    Sry The gear ratio is 10:1 Laurence
  3. larbar

    Large gear ratio

    Hi all, I am curently working for a small company as a developement engineer and I have to design a basic gear system to rotate a robot bird.I am not very experienced with gears and i am finding it hard to create a ratio of 1:10 within a relativly small space (approx. 250mm x 100mm x 165mm)with...
  4. larbar

    torque to turn bird

    Thanks all, for the responses so far. drawoh- position and acceleration are not key with this design. I would like the bird to turn at approx. 0.5 rev/sec. Taking the bird as a sphere, it's diameter is 350mm. My main concern is the torque neccessary to turn the shaft coneected to the bird...
  5. larbar

    torque to turn bird

    hi all, I am currently looking to create a gearing system in order to turn a model bird around in circles from a 12v stepper motor. My main problem is I am not sure how to calculate the torque neccessary, from my geared system, to turn the bird. I have taken the centre of gravity to act...

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