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New machine, question on lead screw tension

Discussion in 'CNC Mills/Routers' started by Retrosmith, Nov 16, 2017.

  1. Retrosmith

    Retrosmith Guest
    Guest Builder

    #1 Retrosmith, Nov 16, 2017
    Last edited by a moderator: Jan 12, 2018
  2. Rick 2.0

    Rick 2.0 OpenBuilds Team
    Staff Member Moderator Builder

    Dec 20, 2013
    Likes Received:
    You might watch the SMW3D video on tensioning the screws. You shouldn't need to shave more than 1/2" off the C-Beams to make it work. Simply reverse the end plates and drop F8-16M bearings in the bearing recess. Lock collar on the free end and the flex coupler on the other. You'll either need to add a few shims under the coupler or order some shorter stand-offs for the motor as the separation distance becomes a little more critical.
  3. ChadRat6458

    ChadRat6458 Journeyman

    Dec 10, 2014
    Likes Received:
    That is cool. I have my basic frame put together. I don't want to take it apart. I will get some more lock collars. I use the new collars to put some tension on like in the video. I will probably need to loosen the old collars then tighten them back up after the tension is set. Thanks.

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