Idler that mounts like a stepper motor

Discussion in 'BigBox General Chat' started by W1EBR.Gene, Sep 27, 2016.

  1. W1EBR.Gene

    W1EBR.Gene Well-Known Member

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    Does anyone know of an idler that can be mounted like a stepper motor? I was thinking about the idea that was mentioned where the z axis is moved by a single motor plus belt. If one of the z stepper motors were replaced with a free running bearing (probably not the right words), then the other motor could drive both a leadscrew and a gear connected to a belt connected to the other leadscrew. The belt could be routed above or below the lower platform.
     
  2. Stefan

    Stefan Well-Known Member

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    No not seen any thing like it, design and print it :D
    But why? I think some the reasons why 2 steppers are use are,
    - It works
    - It's most likely cheaper 1 stepper + coppler vs belt, min 2 pullies, ball bearing + 1 longer spindel or your custom idler.
    - It's just simpler mechanics, no additional belt tightening

    I would go sofar an say 2x y-Motors may be Better
     

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