Hi all,
Just bought a second hand Creator X last week. It’s been printing beautifully so far, until the Y-axis started stuttering today. It basically pauses randomly at the start of a Y-axis move for a fraction of a second, ruining the prints. I’ve attempted to troubleshoot by checking the belt and replugging the stepper motor - it seems like the stepper itself is not moving when it stutters - not a belt issue. Does this mean it’s time to replace the stepper?
To illustrate, I’ve recorded the malfunction and uploaded it to youtube [unlisted of course] :
https://www.youtube.com/watch?v=gc0Uf-FNKdA&feature=youtu.be
Thank you for your help! 
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It seems to skip only once, right after you accelerate the axis in the opposite direction it was traveling before.
Is the pulley loose on the motor perhaps? Tighten the set-screws to make sure…
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YOU ARE A SAVIOUR! Removed the stepper, tightened the pulley gear, and it’s as good as new. THANK YOU!
