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  1. #1
    Join Date
    Dec 2003
    Posts
    40

    Stepper motor as end support

    I'm building a Hobby CNC router but am freely changing various aspects. The X & Y lead screws are supported at one end by the stepper motor. I would suspect that it would be better to support both ends with a bearing rather than using the bearings of the motor to support one end. I would also suspect that the smaller the motor, the more of potential for problems could exist.

    Would this really make that much difference ?
    David J. Morrow

  2. #2
    Join Date
    May 2003
    Posts
    325
    Your are correct, it is NOT a good idea to make the motor do double duty as an end support. It's bearings aren't suitable for axial loads (or for additional radial loads for that matter).

    robotic regards,

    Tom
    = = = = =
    "One wag has suggested that Spooner started out as a bird-watcher and ended up as a word-botcher.
    - - Cruel and Unusual Puns, Don Hauptman

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