How to remove the pulleys noise (BCN3D Sigmax)

In this guide you will learn how to perform some tasks to avoid noise from the pulleys


Allen key 2mm
Allen key 4mm
Allen key 8mm


The noises in the pulley usually come for bad lubrication or for damage in the Y smooth bar, usually comes from the right side pulleys, on the Y-axis smooth bar. To remove the noise follow the next steps:



1. First of all, turn off and unplug the printer.

sigmax-turn-off-1 sigmax-turn-off-2


2. Slightly loosen the 2 set screws without completely removing them from the pulley. screw-iconx2 M4 4mm


Motor pulley

3. Rotate the pulleys around the smooth bar and tighten the set screws, avoid fixing the set screw over the initial position.

If the noise is coming from the front pulleys, slightly lose the M8 Allen screw, and apply some lubricating oil to both the screw and the pulley. Then tighten the screw again.





If pulleys are still noisy or you can't unscrew the set screws, please contact with the support team by filling this form.

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Repair didn’t go as planned? Check out our forum community for troubleshooting help.


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