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  1. #1
    Engineer-in-Training
    Join Date
    Jul 2014
    Posts
    305
    Have you checked the set screw? One time I had a set screw that went bad somehow and would not grip onto the stepper motor. So I was getting weird Y axis artifacts.

  2. #2
    Technologist
    Join Date
    Oct 2014
    Posts
    134
    Quote Originally Posted by BLKKROW View Post
    Have you checked the set screw? One time I had a set screw that went bad somehow and would not grip onto the stepper motor. So I was getting weird Y axis artifacts.
    That makes sense - under load the loose set screw could allow the pulley to slip across the flat, but without the belt in place and under no load, the pulley would stay in place.

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