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Calculate required torque for differential drive robot

  1. Mar 14, 2015 #1
    Hello everyone,
    So I am working on a differential drive vehicle... max weight 6kg and using two stepper motors centred on a circular shaped flat body. I want to try and work out if these stepper motors have enough torque to drive the thing. Im a second year engineering student, but I haven't really done any similar calculations before. I also don't understand the spec sheet for the stepper motor... in regards to torque... it says things like:
    In-traction torque: >34.3mNm (120HZ)
    Self-positioning torque: >34.3mNm
    Friction torque: 600-1200 gf.cm
    Pull in torque: 300 gf.cm

    So once calculated, which one of the above values should I be concerned about.

    Thanks guys
  2. jcsd
  3. Mar 19, 2015 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
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